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Eckhardt CJ, Chattopadhyay S, Kennes DM, Demler EA, Sentef MA, Michael MH. Theory of resonantly enhanced photo-induced superconductivity. Nat Commun 2024; 15:2300. [PMID: 38485935 PMCID: PMC10940728 DOI: 10.1038/s41467-024-46632-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 02/29/2024] [Indexed: 03/18/2024] Open
Abstract
Optical driving of materials has emerged as a versatile tool to control their properties, with photo-induced superconductivity being among the most fascinating examples. In this work, we show that light or lattice vibrations coupled to an electronic interband transition naturally give rise to electron-electron attraction that may be enhanced when the underlying boson is driven into a non-thermal state. We find this phenomenon to be resonantly amplified when tuning the boson's frequency close to the energy difference between the two electronic bands. This result offers a simple microscopic mechanism for photo-induced superconductivity and provides a recipe for designing new platforms in which light-induced superconductivity can be realized. We discuss two-dimensional heterostructures as a potential test ground for light-induced superconductivity concretely proposing a setup consisting of a graphene-hBN-SrTiO3 heterostructure, for which we estimate a superconducting Tc that may be achieved upon driving the system.
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Affiliation(s)
- Christian J Eckhardt
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761, Hamburg, Germany
- Institut für Theorie der Statistischen Physik, RWTH Aachen University and JARA-Fundamentals of Future Information Technology, 52056, Aachen, Germany
| | | | - Dante M Kennes
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761, Hamburg, Germany
- Institut für Theorie der Statistischen Physik, RWTH Aachen University and JARA-Fundamentals of Future Information Technology, 52056, Aachen, Germany
| | - Eugene A Demler
- Institute for Theoretical Physics, ETH Zürich, 8093, Zürich, Switzerland
| | - Michael A Sentef
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761, Hamburg, Germany
- Institute for Theoretical Physics and Bremen Center for Computational Materials Science, University of Bremen, 28359, Bremen, Germany
- H H Wills Physics Laboratory, University of Bristol, Bristol, BS8 1TL, UK
| | - Marios H Michael
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761, Hamburg, Germany.
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2
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Bloch J, Cavalleri A, Galitski V, Hafezi M, Rubio A. Strongly correlated electron-photon systems. Nature 2022; 606:41-48. [PMID: 35614214 DOI: 10.1038/s41586-022-04726-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 12/02/2021] [Indexed: 11/09/2022]
Abstract
An important goal of modern condensed-matter physics involves the search for states of matter with emergent properties and desirable functionalities. Although the tools for material design remain relatively limited, notable advances have been recently achieved by controlling interactions at heterointerfaces, precise alignment of low-dimensional materials and the use of extreme pressures. Here we highlight a paradigm based on controlling light-matter interactions, which provides a way to manipulate and synthesize strongly correlated quantum matter. We consider the case in which both electron-electron and electron-photon interactions are strong and give rise to a variety of phenomena. Photon-mediated superconductivity, cavity fractional quantum Hall physics and optically driven topological phenomena in low dimensions are among the frontiers discussed in this Perspective, which highlights a field that we term here 'strongly correlated electron-photon science'.
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Affiliation(s)
- Jacqueline Bloch
- Centre de Nanosciences et de Nanotechnologies (C2N), Universite Paris Saclay - CNRS, Palaiseau, France
| | - Andrea Cavalleri
- Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany
| | - Victor Galitski
- Department of Physics, University of Maryland, College Park, MD, USA.
| | - Mohammad Hafezi
- Departments of Physics and ECE, University of Maryland, College Park, MD, USA
| | - Angel Rubio
- Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany.,Center for Computational Quantum Physics (CCQ), Flatiron Institute, New York, NY, USA
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3
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Buzzi M, Nicoletti D, Fava S, Jotzu G, Miyagawa K, Kanoda K, Henderson A, Siegrist T, Schlueter JA, Nam MS, Ardavan A, Cavalleri A. Phase Diagram for Light-Induced Superconductivity in κ-(ET)_{2}-X. PHYSICAL REVIEW LETTERS 2021; 127:197002. [PMID: 34797153 DOI: 10.1103/physrevlett.127.197002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 10/05/2021] [Indexed: 06/13/2023]
Abstract
Resonant optical excitation of certain molecular vibrations in κ-(BEDT-TTF)_{2}Cu[N(CN)_{2}]Br has been shown to induce transient superconductinglike optical properties at temperatures far above equilibrium T_{c}. Here, we report experiments across the bandwidth-tuned phase diagram of this class of materials, and study the Mott insulator κ-(BEDT-TTF)_{2}Cu[N(CN)_{2}]Cl and the metallic compound κ-(BEDT-TTF)_{2}Cu(NCS)_{2}. We find nonequilibrium photoinduced superconductivity only in κ-(BEDT-TTF)_{2}Cu[N(CN)_{2}]Br, indicating that the proximity to the Mott insulating phase and possibly the presence of preexisting superconducting fluctuations are prerequisites for this effect.
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Affiliation(s)
- M Buzzi
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
| | - D Nicoletti
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
| | - S Fava
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
| | - G Jotzu
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
| | - K Miyagawa
- Department of Applied Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - K Kanoda
- Department of Applied Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - A Henderson
- National High Magnetic Field Laboratory, 1800 E Paul Dirac Drive, Tallahassee, Florida 31310, USA
| | - T Siegrist
- National High Magnetic Field Laboratory, 1800 E Paul Dirac Drive, Tallahassee, Florida 31310, USA
| | - J A Schlueter
- National High Magnetic Field Laboratory, 1800 E Paul Dirac Drive, Tallahassee, Florida 31310, USA
- Division of Material Research, National Science Foundation, Alexandria, Virginia 22314, USA
| | - M-S Nam
- Department of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, United Kingdom
| | - A Ardavan
- Department of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, United Kingdom
| | - A Cavalleri
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
- Department of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, United Kingdom
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Ahn C, Cavalleri A, Georges A, Ismail-Beigi S, Millis AJ, Triscone JM. Designing and controlling the properties of transition metal oxide quantum materials. NATURE MATERIALS 2021; 20:1462-1468. [PMID: 33941911 DOI: 10.1038/s41563-021-00989-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 03/17/2021] [Indexed: 06/12/2023]
Abstract
This Perspective addresses the design, creation, characterization and control of synthetic quantum materials with strong electronic correlations. We show how emerging synergies between theoretical/computational approaches and materials design/experimental probes are driving recent advances in the discovery, understanding and control of new electronic behaviour in materials systems with interesting and potentially technologically important properties. The focus here is on transition metal oxides, where electronic correlations lead to a myriad of functional properties including superconductivity, magnetism, Mott transitions, multiferroicity and emergent behaviour at picoscale-designed interfaces. Current opportunities and challenges are also addressed, including possible new discoveries of non-equilibrium phenomena and optical control of correlated quantum phases of transition metal oxides.
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Affiliation(s)
| | - Andrea Cavalleri
- Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany
| | - Antoine Georges
- Collège de France, Paris, France
- CCQ-Flatiron Institute, New York, NY, USA
| | | | - Andrew J Millis
- CCQ-Flatiron Institute, New York, NY, USA
- Columbia University, New York, NY, USA
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Light-induced evaporative cooling of holes in the Hubbard model. Nat Commun 2019; 10:5556. [PMID: 31804500 PMCID: PMC6895176 DOI: 10.1038/s41467-019-13557-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 11/14/2019] [Indexed: 11/08/2022] Open
Abstract
An elusive goal in the field of driven quantum matter is the induction of long-range order. Here, we propose a mechanism based on light-induced evaporative cooling of holes in a correlated fermionic system. Since the entropy of a filled narrow band grows rapidly with hole doping, the isentropic transfer of holes from a doped Mott insulator to such a band results in a drop of temperature. Strongly correlated Fermi liquids and symmetry-broken states could thus be produced by dipolar excitations. Using nonequilibrium dynamical mean field theory, we show that suitably designed chirped pulses may realize this cooling effect. In particular, we demonstrate the emergence of antiferromagnetic order in a system which is initially in a weakly correlated state above the maximum Néel temperature. Our work suggests a general strategy for inducing strong correlation phenomena in periodically modulated atomic gases in optical lattices or light-driven materials. Driven quantum many-body systems can host finite densities of quasiparticles with the potential to realise emergent behaviour that is distinct from the equilibrium state. Werner et al. propose a method to cool holes in a correlated system so that more exotic low-entropy phases can be reached.
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Okamoto JI, Cavalleri A, Mathey L. Theory of Enhanced Interlayer Tunneling in Optically Driven High-T_{c} Superconductors. PHYSICAL REVIEW LETTERS 2016; 117:227001. [PMID: 27925717 DOI: 10.1103/physrevlett.117.227001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Indexed: 06/06/2023]
Abstract
Motivated by recent pump-probe experiments indicating enhanced coherent c-axis transport in underdoped YBCO, we study Josephson junctions periodically driven by optical pulses. We propose a mechanism for this observation by demonstrating that a parametrically driven Josephson junction shows an enhanced imaginary part of the low-frequency conductivity when the driving frequency is above the plasma frequency, implying an effectively enhanced Josephson coupling. We generalize this analysis to a bilayer system of Josephson junctions modeling YBCO. Again, the Josephson coupling is enhanced when the pump frequency is blue detuned to either of the two plasma frequencies of the material. We show that the emergent driven state is a genuine, nonequilibrium superconducting state, in which equilibrium relations between the Josephson coupling, current fluctuations, and the critical current no longer hold.
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Affiliation(s)
- Jun-Ichi Okamoto
- Zentrum für Optische Quantentechnologien and Institut für Laserphysik, Universität Hamburg, 22761 Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Andrea Cavalleri
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
- Department of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, United Kingdom
| | - Ludwig Mathey
- Zentrum für Optische Quantentechnologien and Institut für Laserphysik, Universität Hamburg, 22761 Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Germany
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Rajasekaran S, Casandruc E, Laplace Y, Nicoletti D, Gu GD, Clark SR, Jaksch D, Cavalleri A. Parametric Amplification of a Superconducting Plasma Wave. NATURE PHYSICS 2016; 12:1012-1016. [PMID: 27833647 PMCID: PMC5098603 DOI: 10.1038/nphys3819] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 06/13/2016] [Indexed: 05/30/2023]
Abstract
Many applications in photonics require all-optical manipulation of plasma waves1, which can concentrate electromagnetic energy on sub-wavelength length scales. This is difficult in metallic plasmas because of their small optical nonlinearities. Some layered superconductors support Josephson plasma waves (JPWs)2,3, involving oscillatory tunneling of the superfluid between capacitively coupled planes. Josephson plasma waves are also highly nonlinear4, and exhibit striking phenomena like cooperative emission of coherent terahertz radiation5,6, superconductor-metal oscillations7 and soliton formation8. We show here that terahertz JPWs can be parametrically amplified through the cubic tunneling nonlinearity in a cuprate superconductor. Parametric amplification is sensitive to the relative phase between pump and seed waves and may be optimized to achieve squeezing of the order parameter phase fluctuations9 or single terahertz-photon devices.
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Affiliation(s)
- S. Rajasekaran
- Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany
- Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - E. Casandruc
- Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany
- Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Y. Laplace
- Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany
- Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - D. Nicoletti
- Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany
- Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - G. D. Gu
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - S. R. Clark
- Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany
- Department of Physics, University of Bath, Claverton Down, BA2 7AY, Bath United Kingdom
- Department of Physics, Oxford University, Clarendon Laboratory, Parks Road, OX1 3PU Oxford, United Kingdom
| | - D. Jaksch
- Department of Physics, Oxford University, Clarendon Laboratory, Parks Road, OX1 3PU Oxford, United Kingdom
- Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore
| | - A. Cavalleri
- Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany
- Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany
- Department of Physics, Oxford University, Clarendon Laboratory, Parks Road, OX1 3PU Oxford, United Kingdom
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