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Karak P, Manna P, Banerjee A, Ruud K, Chakrabarti S. Reverse Intersystem Crossing Dynamics in Vibronically Modulated Inverted Singlet-Triplet Gap System: A Wigner Phase Space Study. J Phys Chem Lett 2024; 15:7603-7609. [PMID: 39028946 DOI: 10.1021/acs.jpclett.4c01437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
We inspect the origin of the inverted singlet-triplet gap (INVEST) and slow change in the reverse intersystem crossing (rISC) rate with temperature, as recently observed. A Wigner phase space study reveals that, though INVEST is found at equilibrium geometry, variation in the exchange interaction and the doubles-excitation for other geometries in the harmonic region leads to non-INVEST behavior. This highlights the importance of nuclear degrees of freedom for the INVEST phenomenon, and in this case, geometric puckering of the studied molecule determines INVEST and the associated rISC dynamics.
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Affiliation(s)
- Pijush Karak
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, West Bengal, India
| | - Pradipta Manna
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, West Bengal, India
| | - Ambar Banerjee
- Research Institute for Sustainable Energy (RISE), TCG Centres for Research and Education in Science and Technology (TCG-CREST), Kolkata 700091, India
| | - Kenneth Ruud
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Tromsø - The Arctic University of Norway, 9037 Tromsø, Norway
- Norwegian Defence Research Establishment, P.O. Box 25, 2027 Kjeller, Norway
| | - Swapan Chakrabarti
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, West Bengal, India
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2
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García-Elcano I, Merino J, Bravo-Abad J, González-Tudela A. Probing and harnessing photonic Fermi arc surface states using light-matter interactions. SCIENCE ADVANCES 2023; 9:eadf8257. [PMID: 37256964 PMCID: PMC10413654 DOI: 10.1126/sciadv.adf8257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 04/26/2023] [Indexed: 06/02/2023]
Abstract
Fermi arcs, i.e., surface states connecting topologically distinct Weyl points, represent a paradigmatic manifestation of the topological aspects of Weyl physics. We investigate a light-matter interface based on the photonic counterpart of these states and prove that it can lead to phenomena with no analog in other setups. First, we show how to image the Fermi arcs by studying the spontaneous decay of one or many emitters coupled to the system's border. Second, we demonstrate that, exploiting the negative refraction of these modes, the Fermi arc surface states can act as a robust quantum link, enabling, e.g., the occurrence of perfect quantum state transfer between the considered emitters or the formation of highly entangled states. In addition to their fundamental interest, our findings evidence the potential offered by the photonic Fermi arc light-matter interfaces for the design of more robust quantum technologies.
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Affiliation(s)
- Iñaki García-Elcano
- Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - Jaime Merino
- Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - Jorge Bravo-Abad
- Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain
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3
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Lindel F, Carnio EG, Buhmann SY, Buchleitner A. Quantized Fields for Optimal Control in the Strong Coupling Regime. PHYSICAL REVIEW LETTERS 2023; 130:133601. [PMID: 37067298 DOI: 10.1103/physrevlett.130.133601] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 01/16/2023] [Accepted: 02/16/2023] [Indexed: 06/19/2023]
Abstract
We tailor the quantum statistics of a bosonic field to deterministically drive a quantum system into a target state. Experimentally accessible states of the field achieve good control of multilevel or multiqubit systems, notably also at coupling strengths beyond the rotating-wave approximation. This extends optimal control theory to the realm of fully quantized, strongly coupled control and target degrees of freedom.
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Affiliation(s)
- Frieder Lindel
- Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Straße 3, 79104, Freiburg, Germany
| | - Edoardo G Carnio
- Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Straße 3, 79104, Freiburg, Germany
- EUCOR Centre for Quantum Science and Quantum Computing, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Straße 3, 79104, Freiburg, Germany
| | - Stefan Yoshi Buhmann
- Institut für Physik, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - Andreas Buchleitner
- Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Straße 3, 79104, Freiburg, Germany
- EUCOR Centre for Quantum Science and Quantum Computing, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Straße 3, 79104, Freiburg, Germany
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4
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Altowyan AS, Berrada K, Abdel-Khalek S, Eleuch H. Quantum Coherence and Total Phase in Semiconductor Microcavities for Multi-Photon Excitation. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2671. [PMID: 35957102 PMCID: PMC9370133 DOI: 10.3390/nano12152671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/24/2022] [Accepted: 07/28/2022] [Indexed: 11/16/2022]
Abstract
We examine how the weak excitation regime of a quantum well confined in a semiconductor microcavity (SM) influences the dynamics of quantum coherence and the total phase. We analyze the impact of the physical parameters on different quantumness measures, and illustrate their numerical results. We show that the amount of the coherence and total phase in the SMs for multi-photon excitation can be improved and controlled by the strength of the field, exciton-photon coupling, cavity dissipation rate, and excitonic spontaneous emission rate. We illustrate how the fidelity varies depending on the physical parameters. These results might have far-reaching ramifications not just in quantum information processing and optics, but also in physics at large.
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Affiliation(s)
- Abeer S. Altowyan
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Kamal Berrada
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 5701, Riyadh 11432, Saudi Arabia
- The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, 34151 Miramare-Trieste, Italy
| | - Sayed Abdel-Khalek
- Department of Mathematics and Statistics, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
- Department of Mathematics, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Hichem Eleuch
- Department of Applied Physics and Astronomy, University of Sharjah, Sharjah 27272, United Arab Emirates;
- Department of Applied Sciences and Mathematics, College of Arts and Sciences, Abu Dhabi University, Abu Dhabi 59911, United Arab Emirates
- Institute for Quantum Science and Engineering, Texas A&M University, College Station, TX 77843, USA
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5
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Lüders C, Aßmann M. Distinguishing intrinsic photon correlations from external noise with frequency-resolved homodyne detection. Sci Rep 2020; 10:22411. [PMID: 33376250 PMCID: PMC7772345 DOI: 10.1038/s41598-020-79686-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 12/11/2020] [Indexed: 11/09/2022] Open
Abstract
In this work, we apply homodyne detection to investigate the frequency-resolved photon statistics of a cw light field emitted by a driven-dissipative semiconductor system in real time. We demonstrate that studying the frequency dependence of the photon number noise allows us to distinguish intrinsic noise properties of the emitter from external noise sources such as mechanical noise while maintaining a sub-picosecond temporal resolution. We further show that performing postselection on the recorded data opens up the possibility to study rare events in the dynamics of the emitter. By doing so, we demonstrate that in rare instances, additional external noise may actually result in reduced photon number noise in the emission.
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Affiliation(s)
- Carolin Lüders
- Experimentelle Physik 2, Technische Universität Dortmund, 44221, Dortmund, Germany
| | - Marc Aßmann
- Experimentelle Physik 2, Technische Universität Dortmund, 44221, Dortmund, Germany.
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6
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Peng ZA, Zhao T, Yang GQ, Huang GM, Li GX. Multifold wave-particle quantum correlations in strongly correlated three-photon emissions from filtered resonance fluorescence. OPTICS EXPRESS 2020; 28:22767-22790. [PMID: 32752533 DOI: 10.1364/oe.396684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 06/28/2020] [Indexed: 06/11/2023]
Abstract
Multifold wave-particle quantum correlations are studied in strongly correlated three-photon emissions from the Mollow triplet via frequency engineering. The nonclassicality and the non-Gaussianity of the filtered field are discussed by correlating intensity signal and correlated balanced homodyne signals. Due to the non-Gaussian fluctuations in the Mollow triplet, new forms of the criterion of nonclassicality for non-Gaussian radiation are proposed by introducing intensity-dual quadrature correlation functions, which contain the information about strongly correlated three-photon emissions of the Mollow triplet. In addition, the time-dependent dynamics of non-Gaussian fluctuations of the filtered field is studied, which displays conspicuous asymmetry. Physically, the asymmetrical evolution of non-Gaussian fluctuations can be attributed to the different transition dynamics of the laser-dressed quantum emitter revealed by the past quantum state and conditional quantum state. Compared with the conventional three-photon intensity correlations that unilaterally reflect the particle properties of radiation, the multifold wave-particle correlation functions we proposed may convey more information about wave-particle duality of radiation, such as the quantum coherence of photon triplet and "which-path" in cascaded photon emissions in atomic systems.
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7
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Suárez-Forero DG, Ardizzone V, Covre da Silva SF, Reindl M, Fieramosca A, Polimeno L, Giorgi MD, Dominici L, Pfeiffer LN, Gigli G, Ballarini D, Laussy F, Rastelli A, Sanvitto D. Quantum hydrodynamics of a single particle. LIGHT, SCIENCE & APPLICATIONS 2020; 9:85. [PMID: 32435468 PMCID: PMC7221079 DOI: 10.1038/s41377-020-0324-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 04/23/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
Semiconductor devices are strong competitors in the race for the development of quantum computational systems. In this work, we interface two semiconductor building blocks of different dimensionalities with complementary properties: (1) a quantum dot hosting a single exciton and acting as a nearly ideal single-photon emitter and (2) a quantum well in a 2D microcavity sustaining polaritons, which are known for their strong interactions and unique hydrodynamic properties, including ultrafast real-time monitoring of their propagation and phase mapping. In the present experiment, we can thus observe how the injected single particles propagate and evolve inside the microcavity, giving rise to hydrodynamic features typical of macroscopic systems despite their genuine intrinsic quantum nature. In the presence of a structural defect, we observe the celebrated quantum interference of a single particle that produces fringes reminiscent of wave propagation. While this behavior could be theoretically expected, our imaging of such an interference pattern, together with a measurement of antibunching, constitutes the first demonstration of spatial mapping of the self-interference of a single quantum particle impinging on an obstacle.
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Affiliation(s)
- Daniel Gustavo Suárez-Forero
- CNR NANOTEC, Institute of Nanotechnology, Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy
- Dipartimento di Ingegneria dell’Innovazione, Università del Salento, Campus Ecotekne, via Monteroni, 73100 Lecce, Italy
| | - Vincenzo Ardizzone
- CNR NANOTEC, Institute of Nanotechnology, Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy
| | - Saimon Filipe Covre da Silva
- Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Altenbergerstr. 69, Linz, 4040 Austria
| | - Marcus Reindl
- Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Altenbergerstr. 69, Linz, 4040 Austria
| | - Antonio Fieramosca
- CNR NANOTEC, Institute of Nanotechnology, Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, Campus Ecotekne, via Monteroni, Lecce, 73100 Italy
| | - Laura Polimeno
- CNR NANOTEC, Institute of Nanotechnology, Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, Campus Ecotekne, via Monteroni, Lecce, 73100 Italy
| | - Milena De Giorgi
- CNR NANOTEC, Institute of Nanotechnology, Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy
| | - Lorenzo Dominici
- CNR NANOTEC, Institute of Nanotechnology, Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy
| | - Loren N. Pfeiffer
- PRISM, Princeton Institute for the Science and Technology of Materials, Princeton University, Princeton, NJ 08540 USA
| | - Giuseppe Gigli
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, Campus Ecotekne, via Monteroni, Lecce, 73100 Italy
| | - Dario Ballarini
- CNR NANOTEC, Institute of Nanotechnology, Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy
| | - Fabrice Laussy
- Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton, WV1 1LY UK
- Russian Quantum Center, Novaya 100, 143025 Skolkovo, Moscow Region, Russia
| | - Armando Rastelli
- Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Altenbergerstr. 69, Linz, 4040 Austria
| | - Daniele Sanvitto
- CNR NANOTEC, Institute of Nanotechnology, Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy
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8
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Suárez-Forero DG, Giuri A, De Giorgi M, Polimeno L, De Marco L, Todisco F, Gigli G, Dominici L, Ballarini D, Ardizzone V, Belviso BD, Altamura D, Giannini C, Brescia R, Colella S, Listorti A, Esposito Corcione C, Rizzo A, Sanvitto D. Quantum Nature of Light in Nonstoichiometric Bulk Perovskites. ACS NANO 2019; 13:10711-10716. [PMID: 31469265 DOI: 10.1021/acsnano.9b05361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Sources of single photons are a fundamental brick in the development of quantum information technologies. Great efforts have been made so far in the realization of reliable, highly efficient, and on demand quantum sources that could show an easy integration with quantum devices. This has recently culminated in the use of solid state quantum dots as promising candidates for future sources of quantum technologies. However, some challenges, like their complex fabrication, random distribution, and difficult integrability with silicon technology, could hinder their broad application, making necessary the study of alternative systems. In this work, we clearly demonstrate single photon emission from quantum dots formed in nonstoichiometric bulk perovskites. Their simple growing procedures, exceptional stability under constant illumination, easy control of their optical properties, as well as ease of integrability make these materials very interesting candidates for the development of quantum light sources in the near-infrared.
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Affiliation(s)
- Daniel G Suárez-Forero
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Ingegneria dell'Innovazione , Università del Salento , via per Monteroni, km 1 , 73100 Lecce , Italy
| | - Antonella Giuri
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Ingegneria dell'Innovazione , Università del Salento , via per Monteroni, km 1 , 73100 Lecce , Italy
| | - Milena De Giorgi
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
| | - Laura Polimeno
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Fisica , Universitá del Salento , Strada Provinciale Lecce-Monteroni, Campus Ecotekne, Lecce 73100 , Italy
| | - Luisa De Marco
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
| | - Francesco Todisco
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
| | - Giuseppe Gigli
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Fisica , Universitá del Salento , Strada Provinciale Lecce-Monteroni, Campus Ecotekne, Lecce 73100 , Italy
| | - Lorenzo Dominici
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
| | - Dario Ballarini
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
| | - Vincenzo Ardizzone
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Fisica , Universitá del Salento , Strada Provinciale Lecce-Monteroni, Campus Ecotekne, Lecce 73100 , Italy
| | - Benny D Belviso
- Istituto di Cristallografia, CNR-IC , Via Amendola 122/O , 70126 Bari , Italy
| | - Davide Altamura
- Istituto di Cristallografia, CNR-IC , Via Amendola 122/O , 70126 Bari , Italy
| | - Cinzia Giannini
- Istituto di Cristallografia, CNR-IC , Via Amendola 122/O , 70126 Bari , Italy
| | - Rosaria Brescia
- Electron Microscopy Facility , Istituto Italiano di Tecnologia , via Morego 30 , Genova 16163 , Italy
| | - Silvia Colella
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Fisica , Universitá del Salento , Strada Provinciale Lecce-Monteroni, Campus Ecotekne, Lecce 73100 , Italy
| | - Andrea Listorti
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Fisica , Universitá del Salento , Strada Provinciale Lecce-Monteroni, Campus Ecotekne, Lecce 73100 , Italy
| | - Carola Esposito Corcione
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Ingegneria dell'Innovazione , Università del Salento , via per Monteroni, km 1 , 73100 Lecce , Italy
| | - Aurora Rizzo
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Fisica , Universitá del Salento , Strada Provinciale Lecce-Monteroni, Campus Ecotekne, Lecce 73100 , Italy
| | - Daniele Sanvitto
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- INFN Sezione di Lecce , 73100 Lecce , Italy
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9
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Chen HT, Li TE, Nitzan A, Subotnik JE. Predictive Semiclassical Model for Coherent and Incoherent Emission in the Strong Field Regime: The Mollow Triplet Revisited. J Phys Chem Lett 2019; 10:1331-1336. [PMID: 30844289 DOI: 10.1021/acs.jpclett.9b00181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We reinvestigate the famous Mollow triplet and show that most of the well-known quantum characteristics of the Mollow triplet-including incoherent emission and a nonstandard dependence of the sidebands on detuning-can be recovered quantitatively using semiclassical dynamics with a classical light field. In fact, by not relying on the rotating wave approximation, a semiclassical model predicts some quantum effects beyond the quantum optical Bloch equation, including higher-order scattering and asymmetric sideband features. This Letter highlights the fact that, with strong intensities, many putatively quantum features of light-matter interactions arise from a simple balance of mean-field electrodynamics and elementary spontaneous emission, which requires minimal computational cost. Our results suggest that the application of semiclassical electrodynamics to problems with strong light-matter coupling in the fields of nanophotonics and superradiance are likely to yield a plethora of new information.
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Affiliation(s)
- Hsing-Ta Chen
- Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104 , United States
| | - Tao E Li
- Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104 , United States
| | - Abraham Nitzan
- Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104 , United States
| | - Joseph E Subotnik
- Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104 , United States
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10
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Bin Q, Lü XY, Bin SW, Wu Y. Two-photon blockade in a cascaded cavity-quantum-electrodynamics system. PHYSICAL REVIEW A 2018; 98:043858. [DOI: 10.1103/physreva.98.043858] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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11
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Abstract
We adapt the Quantum Monte Carlo method to the cascaded formalism of quantum optics, allowing us to simulate the emission of photons of known energy. Statistical processing of the photon clicks thus collected agrees with the theory of frequency-resolved photon correlations, extending the range of applications based on correlations of photons of prescribed energy, in particular those of a photon-counting character. We apply the technique to autocorrelations of photon streams from a two-level system under coherent and incoherent pumping, including the Mollow triplet regime where we demonstrate the direct manifestation of leapfrog processes in producing an increased rate of two-photon emission events.
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12
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Cuevas Á, López Carreño JC, Silva B, De Giorgi M, Suárez-Forero DG, Sánchez Muñoz C, Fieramosca A, Cardano F, Marrucci L, Tasco V, Biasiol G, del Valle E, Dominici L, Ballarini D, Gigli G, Mataloni P, Laussy FP, Sciarrino F, Sanvitto D. First observation of the quantized exciton-polariton field and effect of interactions on a single polariton. SCIENCE ADVANCES 2018; 4:eaao6814. [PMID: 29725616 PMCID: PMC5930420 DOI: 10.1126/sciadv.aao6814] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 03/01/2018] [Indexed: 05/31/2023]
Abstract
Polaritons are quasi-particles that originate from the coupling of light with matter and that demonstrate quantum phenomena at the many-particle mesoscopic level, such as Bose-Einstein condensation and superfluidity. A highly sought and long-time missing feature of polaritons is a genuine quantum manifestation of their dynamics at the single-particle level. Although they are conceptually perceived as entangled states and theoretical proposals abound for an explicit manifestation of their single-particle properties, so far their behavior has remained fully accounted for by classical and mean-field theories. We report the first experimental demonstration of a genuinely quantum state of the microcavity polariton field, by swapping a photon for a polariton in a two-photon entangled state generated by parametric downconversion. When bringing this single-polariton quantum state in contact with a polariton condensate, we observe a disentangling with the external photon. This manifestation of a polariton quantum state involving a single quantum unlocks new possibilities for quantum information processing with interacting bosons.
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Affiliation(s)
- Álvaro Cuevas
- Consiglio Nazionale delle Ricerche (CNR) Nanotec—Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy
- Dipartimento di Fisica, Sapienza University of Rome, Piazzale Aldo Moro, 2, 00185 Rome, Italy
| | - Juan Camilo López Carreño
- Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK
| | - Blanca Silva
- Consiglio Nazionale delle Ricerche (CNR) Nanotec—Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy
- Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Milena De Giorgi
- Consiglio Nazionale delle Ricerche (CNR) Nanotec—Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy
| | - Daniel G. Suárez-Forero
- Consiglio Nazionale delle Ricerche (CNR) Nanotec—Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy
| | - Carlos Sánchez Muñoz
- Center for Emergent Matter Science (CEMS), RIKEN, Wako-shi, Saitama 351-0198, Japan
| | - Antonio Fieramosca
- Consiglio Nazionale delle Ricerche (CNR) Nanotec—Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy
| | | | | | - Vittorianna Tasco
- Consiglio Nazionale delle Ricerche (CNR) Nanotec—Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy
| | - Giorgio Biasiol
- Istituto Officina dei Materiali, CNR, Laboratorio di Tecnologie Avanzate, Superfici e Catalisi (TASC), I-34149 Trieste, Italy
| | - Elena del Valle
- Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Lorenzo Dominici
- Consiglio Nazionale delle Ricerche (CNR) Nanotec—Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy
| | - Dario Ballarini
- Consiglio Nazionale delle Ricerche (CNR) Nanotec—Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy
| | - Giuseppe Gigli
- Consiglio Nazionale delle Ricerche (CNR) Nanotec—Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy
| | - Paolo Mataloni
- Dipartimento di Fisica, Sapienza University of Rome, Piazzale Aldo Moro, 2, 00185 Rome, Italy
| | - Fabrice P. Laussy
- Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK
- Russian Quantum Center, Novaya 100, 143025 Skolkovo, Moscow Region, Russia
| | - Fabio Sciarrino
- Dipartimento di Fisica, Sapienza University of Rome, Piazzale Aldo Moro, 2, 00185 Rome, Italy
| | - Daniele Sanvitto
- Consiglio Nazionale delle Ricerche (CNR) Nanotec—Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy
- INFN Sezione di Lecce, 73100 Lecce, Italy
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Sanvitto D, Kéna-Cohen S. The road towards polaritonic devices. NATURE MATERIALS 2016; 15:1061-73. [PMID: 27429208 DOI: 10.1038/nmat4668] [Citation(s) in RCA: 188] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 05/18/2016] [Indexed: 05/25/2023]
Abstract
Polaritons are quasiparticles that form in semiconductors when an elementary excitation such as an exciton or a phonon interacts sufficiently strongly with light. In particular, exciton-polaritons have attracted tremendous attention for their unique properties, spanning from an ability to undergo ultra-efficient four-wave mixing to superfluidity in the condensed state. These quasiparticles possess strong intrinsic nonlinearities, while keeping most characteristics of the underlying photons. Here we review the most important features of exciton-polaritons in microcavities, with a particular emphasis on the emerging technological applications, the use of new materials for room-temperature operation, and the possibility of exploiting polaritons for quantum computation and simulation.
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Affiliation(s)
- Daniele Sanvitto
- CNR - NANOTEC, Istituto di Nanotecnologia, Via Monteroni, 73100 Lecce, Italy
| | - Stéphane Kéna-Cohen
- Department of Engineering Physics, École Polytechnique de Montréal, PO Box 6079, Station Centre-Ville Montréal, Quebec H3C 3A7, Canada
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Colas D, Laussy FP. Self-Interfering Wave Packets. PHYSICAL REVIEW LETTERS 2016; 116:026401. [PMID: 26824554 DOI: 10.1103/physrevlett.116.026401] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Indexed: 06/05/2023]
Abstract
We study the propagation of noninteracting polariton wave packets. We show how two qualitatively different concepts of mass that arise from the peculiar polariton dispersion lead to a new type of particlelike object from noninteracting fields-much like self-accelerating beams-shaped by the Rabi coupling out of Gaussian initial states. A divergence and change of sign of the diffusive mass results in a "mass wall" on which polariton wave packets bounce back. Together with the Rabi dynamics, this yields propagation of ultrafast subpackets and ordering of a spacetime crystal.
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Affiliation(s)
- David Colas
- Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - Fabrice P Laussy
- Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain
- Russian Quantum Center, Novaya 100, 143025 Skolkovo, Moscow Region, Russia
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