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de Assis PL, Yeo I, Gloppe A, Nguyen HA, Tumanov D, Dupont-Ferrier E, Malik NS, Dupuy E, Claudon J, Gérard JM, Auffèves A, Arcizet O, Richard M, Poizat JP. Strain-Gradient Position Mapping of Semiconductor Quantum Dots. Phys Rev Lett 2017; 118:117401. [PMID: 28368631 DOI: 10.1103/physrevlett.118.117401] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Indexed: 06/07/2023]
Abstract
We introduce a nondestructive method to determine the position of randomly distributed semiconductor quantum dots (QDs) integrated in a solid photonic structure. By setting the structure in an oscillating motion, we generate a large stress gradient across the QDs plane. We then exploit the fact that the QDs emission frequency is highly sensitive to the local material stress to map the position of QDs deeply embedded in a photonic wire antenna with an accuracy ranging from ±35 nm down to ±1 nm. In the context of fast developing quantum technologies, this technique can be generalized to different photonic nanostructures embedding any stress-sensitive quantum emitters.
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Affiliation(s)
- P-L de Assis
- Institut NEEL, CNRS, Univ. Grenoble Alpes, France
- Departamento de Física, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - I Yeo
- Institut NEEL, CNRS, Univ. Grenoble Alpes, France
- INAC-PHELIQS, "Nanophysique et semiconducteurs" group, CEA, Univ. Grenoble Alpes, France
| | - A Gloppe
- Institut NEEL, CNRS, Univ. Grenoble Alpes, France
| | - H A Nguyen
- Institut NEEL, CNRS, Univ. Grenoble Alpes, France
| | - D Tumanov
- Institut NEEL, CNRS, Univ. Grenoble Alpes, France
| | | | - N S Malik
- INAC-PHELIQS, "Nanophysique et semiconducteurs" group, CEA, Univ. Grenoble Alpes, France
| | - E Dupuy
- INAC-PHELIQS, "Nanophysique et semiconducteurs" group, CEA, Univ. Grenoble Alpes, France
| | - J Claudon
- INAC-PHELIQS, "Nanophysique et semiconducteurs" group, CEA, Univ. Grenoble Alpes, France
| | - J-M Gérard
- INAC-PHELIQS, "Nanophysique et semiconducteurs" group, CEA, Univ. Grenoble Alpes, France
| | - A Auffèves
- Institut NEEL, CNRS, Univ. Grenoble Alpes, France
| | - O Arcizet
- Institut NEEL, CNRS, Univ. Grenoble Alpes, France
| | - M Richard
- Institut NEEL, CNRS, Univ. Grenoble Alpes, France
| | - J-Ph Poizat
- Institut NEEL, CNRS, Univ. Grenoble Alpes, France
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Jehl X, Voisin B, Roche B, Dupont-Ferrier E, De Franceschi S, Sanquer M, Cobian M, Niquet YM, Sklénard B, Cueto O, Wacquez R, Vinet M. The coupled atom transistor. J Phys Condens Matter 2015; 27:154206. [PMID: 25783566 DOI: 10.1088/0953-8984/27/15/154206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We describe the first implementation of a coupled atom transistor where two shallow donors (P or As) are implanted in a nanoscale silicon nanowire and their electronic levels are controlled with three gate voltages. Transport spectroscopy through these donors placed in series is performed both at zero and microwave frequencies. The coherence of the charge transfer between the two donors is probed by Landau-Zener-Stückelberg interferometry. Single-charge transfer at zero bias (electron pumping) has been performed and the crossover between the adiabatic and non-adiabatic regimes is studied.
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Affiliation(s)
- X Jehl
- University Grenoble Alpes, INAC, F-38000 Grenoble, France and CEA, INAC-SPSMS, F-38054 Grenoble, France
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3
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Gloppe A, Verlot P, Dupont-Ferrier E, Siria A, Poncharal P, Bachelier G, Vincent P, Arcizet O. Bidimensional nano-optomechanics and topological backaction in a non-conservative radiation force field. Nat Nanotechnol 2014; 9:920-6. [PMID: 25240676 DOI: 10.1038/nnano.2014.189] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Accepted: 08/07/2014] [Indexed: 05/05/2023]
Abstract
Optomechanics, which explores the fundamental coupling between light and mechanical motion, has made important advances in manipulating macroscopic mechanical oscillators down to the quantum level. However, dynamical effects related to the vectorial nature of the optomechanical interaction remain to be investigated. Here we study a nanowire with subwavelength dimensions coupled strongly to a tightly focused beam of light, enabling an ultrasensitive readout of the nanoresonator dynamics. We determine experimentally the vectorial structure of the optomechanical interaction and demonstrate that a bidimensional dynamical backaction governs the nanowire dynamics. Moreover, the spatial topology of the optomechanical interaction is responsible for novel canonical signatures of strong coupling between mechanical modes, which leads to a topological instability that underlies the non-conservative nature of the optomechanical interaction. These results have a universal character and illustrate the increased sensitivity of nanomechanical devices towards spatially varying interactions, opening fundamental perspectives in nanomechanics, optomechanics, ultrasensitive scanning force microscopy and nano-optics.
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Affiliation(s)
- A Gloppe
- Institut Néel, Université Grenoble Alpes - CNRS:UPR2940, Grenoble 38042, France
| | - P Verlot
- Institut Néel, Université Grenoble Alpes - CNRS:UPR2940, Grenoble 38042, France
| | - E Dupont-Ferrier
- Institut Néel, Université Grenoble Alpes - CNRS:UPR2940, Grenoble 38042, France
| | - A Siria
- Institut Lumière Matière, UMR5306, CNRS - Université Claude Bernard Lyon 1, Villeurbanne 69622, France
| | - P Poncharal
- Institut Lumière Matière, UMR5306, CNRS - Université Claude Bernard Lyon 1, Villeurbanne 69622, France
| | - G Bachelier
- Institut Néel, Université Grenoble Alpes - CNRS:UPR2940, Grenoble 38042, France
| | - P Vincent
- Institut Lumière Matière, UMR5306, CNRS - Université Claude Bernard Lyon 1, Villeurbanne 69622, France
| | - O Arcizet
- Institut Néel, Université Grenoble Alpes - CNRS:UPR2940, Grenoble 38042, France
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4
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Yeo I, de Assis PL, Gloppe A, Dupont-Ferrier E, Verlot P, Malik NS, Dupuy E, Claudon J, Gérard JM, Auffèves A, Nogues G, Seidelin S, Poizat JP, Arcizet O, Richard M. Strain-mediated coupling in a quantum dot-mechanical oscillator hybrid system. Nat Nanotechnol 2014; 9:106-10. [PMID: 24362234 DOI: 10.1038/nnano.2013.274] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Accepted: 11/14/2013] [Indexed: 05/05/2023]
Abstract
Recent progress in nanotechnology has allowed the fabrication of new hybrid systems in which a single two-level system is coupled to a mechanical nanoresonator. In such systems the quantum nature of a macroscopic degree of freedom can be revealed and manipulated. This opens up appealing perspectives for quantum information technologies, and for the exploration of the quantum-classical boundary. Here we present the experimental realization of a monolithic solid-state hybrid system governed by material strain: a quantum dot is embedded within a nanowire that features discrete mechanical resonances corresponding to flexural vibration modes. Mechanical vibrations result in a time-varying strain field that modulates the quantum dot transition energy. This approach simultaneously offers a large light-extraction efficiency and a large exciton-phonon coupling strength g0. By means of optical and mechanical spectroscopy, we find that g0/2 π is nearly as large as the mechanical frequency, a criterion that defines the ultrastrong coupling regime.
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Affiliation(s)
- I Yeo
- 1] Nanophysics et Semiconductors Joint Team, Institut Néel, CNRS - Université Joseph Fourier, 38042 Grenoble, France [2] Nanophysics et Semiconductors Joint Team, CEA/INAC/SP2M and Université Joseph Fourier, 38054 Grenoble, France
| | - P-L de Assis
- Nanophysics et Semiconductors Joint Team, Institut Néel, CNRS - Université Joseph Fourier, 38042 Grenoble, France
| | - A Gloppe
- Institut Néel, CNRS and Université Joseph Fourier, 38042 Grenoble, France
| | - E Dupont-Ferrier
- Institut Néel, CNRS and Université Joseph Fourier, 38042 Grenoble, France
| | - P Verlot
- Institut Néel, CNRS and Université Joseph Fourier, 38042 Grenoble, France
| | - N S Malik
- Nanophysics et Semiconductors Joint Team, CEA/INAC/SP2M and Université Joseph Fourier, 38054 Grenoble, France
| | - E Dupuy
- Nanophysics et Semiconductors Joint Team, CEA/INAC/SP2M and Université Joseph Fourier, 38054 Grenoble, France
| | - J Claudon
- Nanophysics et Semiconductors Joint Team, CEA/INAC/SP2M and Université Joseph Fourier, 38054 Grenoble, France
| | - J-M Gérard
- Nanophysics et Semiconductors Joint Team, CEA/INAC/SP2M and Université Joseph Fourier, 38054 Grenoble, France
| | - A Auffèves
- Nanophysics et Semiconductors Joint Team, Institut Néel, CNRS - Université Joseph Fourier, 38042 Grenoble, France
| | - G Nogues
- Nanophysics et Semiconductors Joint Team, Institut Néel, CNRS - Université Joseph Fourier, 38042 Grenoble, France
| | - S Seidelin
- Institut Néel, CNRS and Université Joseph Fourier, 38042 Grenoble, France
| | - J-Ph Poizat
- Nanophysics et Semiconductors Joint Team, Institut Néel, CNRS - Université Joseph Fourier, 38042 Grenoble, France
| | - O Arcizet
- Institut Néel, CNRS and Université Joseph Fourier, 38042 Grenoble, France
| | - M Richard
- Nanophysics et Semiconductors Joint Team, Institut Néel, CNRS - Université Joseph Fourier, 38042 Grenoble, France
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Rohr S, Dupont-Ferrier E, Pigeau B, Verlot P, Jacques V, Arcizet O. Synchronizing the dynamics of a single nitrogen vacancy spin qubit on a parametrically coupled radio-frequency field through microwave dressing. Phys Rev Lett 2014; 112:010502. [PMID: 24483876 DOI: 10.1103/physrevlett.112.010502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Indexed: 06/03/2023]
Abstract
A hybrid spin-oscillator system in parametric interaction is experimentally emulated using a single nitrogen vacancy (NV) spin qubit immersed in a radio frequency (rf) field and probed with a quasiresonant microwave (MW) field. We report on the MW-mediated locking of the NV spin dynamics onto the rf field, appearing when the MW-driven Rabi precession frequency approaches the rf frequency and for sufficiently large rf amplitudes. These signatures are analogous to a phononic Mollow triplet in the MW rotating frame for the parametric interaction and promise to have impact in spin-dependent force detection strategies.
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Affiliation(s)
- S Rohr
- Institut Néel, CNRS et Université Joseph Fourier, 38042 Grenoble, France
| | - E Dupont-Ferrier
- Institut Néel, CNRS et Université Joseph Fourier, 38042 Grenoble, France
| | - B Pigeau
- Institut Néel, CNRS et Université Joseph Fourier, 38042 Grenoble, France
| | - P Verlot
- Institut Néel, CNRS et Université Joseph Fourier, 38042 Grenoble, France
| | - V Jacques
- Laboratoire Aimé Cotton, CNRS, Université Paris-Sud and ENS Cachan, 91405 Orsay, France
| | - O Arcizet
- Institut Néel, CNRS et Université Joseph Fourier, 38042 Grenoble, France
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Dupont-Ferrier E, Roche B, Voisin B, Jehl X, Wacquez R, Vinet M, Sanquer M, De Franceschi S. Coherent coupling of two dopants in a silicon nanowire probed by Landau-Zener-Stückelberg interferometry. Phys Rev Lett 2013; 110:136802. [PMID: 23581354 DOI: 10.1103/physrevlett.110.136802] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Indexed: 06/02/2023]
Abstract
We report on microwave-driven coherent electron transfer between two coupled donors embedded in a silicon nanowire. By increasing the microwave frequency we observe a transition from incoherent to coherent driving revealed by the emergence of a Landau-Zener-Stückelberg quantum interference pattern of the measured current through the donors. This interference pattern is fitted to extract characteristic parameters of the double-donor system. In particular we estimate a charge dephasing time of 0.3±0.1 ns, comparable to other types of charge-based two-level systems. The demonstrated coherent coupling between two dopants is an important step towards donor-based quantum computing devices in silicon.
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Roche B, Dupont-Ferrier E, Voisin B, Cobian M, Jehl X, Wacquez R, Vinet M, Niquet YM, Sanquer M. Detection of a large valley-orbit splitting in silicon with two-donor spectroscopy. Phys Rev Lett 2012; 108:206812. [PMID: 23003174 DOI: 10.1103/physrevlett.108.206812] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Indexed: 06/01/2023]
Abstract
We measure a large valley-orbit splitting for shallow isolated phosphorus donors in a silicon gated nanowire. This splitting is close to the bulk value and well above previous reports in silicon nanostructures. It was determined using a double dopant transport spectroscopy which eliminates artifacts induced by the environment. Quantitative simulations taking into account the position of the donors with respect to the Si/SiO2 interface and electric field in the wire show that the values found are consistent with the device geometry.
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Affiliation(s)
- B Roche
- SPSMS, UMR-E CEA / UJF-Grenoble 1, INAC, 17 rue des Martyrs, 38054 Grenoble, France
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