Cavity Quantum Electrodynamics at Arbitrary Light-Matter Coupling Strengths

被引:68
作者
Ashida, Yuto [1 ,2 ,3 ]
Imamoglu, Atac [4 ]
Demler, Eugene [5 ]
机构
[1] Univ Tokyo, Dept Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
[2] Univ Tokyo, Inst Phys Intelligence, 7-3-1 Hongo, Tokyo 1130033, Japan
[3] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan
[4] Swiss Fed Inst Technol, Inst Quantum Elect, CH-8093 Zurich, Switzerland
[5] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA
基金
美国国家科学基金会; 日本学术振兴会;
关键词
GAUGE AMBIGUITIES; ROOM-TEMPERATURE; ENERGY-TRANSFER; ATOMS; REACTIVITY; PHYSICS; STATES;
D O I
10.1103/PhysRevLett.126.153603
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Quantum light-matter systems at strong coupling are notoriously challenging to analyze due to the need to include states with many excitations in every coupled mode. We propose a nonperturbative approach to analyze light-matter correlations at all interaction strengths. The key element of our approach is a unitary transformation that achieves asymptotic decoupling of light and matter degrees of freedom in the limit where light-matter interaction becomes the dominant energy scale. In the transformed frame, truncation of the matter or photon Hilbert space is increasingly well justified at larger coupling, enabling one to systematically derive low-energy effective models, such as tight-binding Hamiltonians. We demonstrate the versatility of our approach by applying it to concrete models relevant to electrons in crystal potential and electric dipoles interacting with a cavity mode. A generalization to the case of spatially varying electromagnetic modes is also discussed.
引用
收藏
页数:8
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共 123 条
[1]   Coupling of a Single Nitrogen-Vacancy Center in Diamond to a Fiber-Based Microcavity [J].
Albrecht, Roland ;
Bommer, Alexander ;
Deutsch, Christian ;
Reichel, Jakob ;
Becher, Christoph .
PHYSICAL REVIEW LETTERS, 2013, 110 (24)
[2]   Theory of photon condensation in a spatially varying electromagnetic field [J].
Andolina, G. M. ;
Pellegrino, F. M. D. ;
Giovannetti, V ;
MacDonald, A. H. ;
Polini, M. .
PHYSICAL REVIEW B, 2020, 102 (12)
[3]   Cavity quantum electrodynamics of strongly correlated electron systems: A no-go theorem for photon condensation [J].
Andolina, G. M. ;
Pellegrino, F. M. D. ;
Giovannetti, V ;
MacDonald, A. H. ;
Polini, M. .
PHYSICAL REVIEW B, 2019, 100 (12)
[4]   Superradiance phase transition in the presence of parameter fluctuations [J].
Ashhab, S. ;
Semba, K. .
PHYSICAL REVIEW A, 2017, 95 (05)
[5]   Quantum Electrodynamic Control of Matter: Cavity-Enhanced Ferroelectric Phase Transition [J].
Ashida, Yuto ;
Imamoglu, Atac ;
Faist, Jerome ;
Jaksch, Dieter ;
Cavalleri, Andrea ;
Demler, Eugene .
PHYSICAL REVIEW X, 2020, 10 (04)
[6]   Solving Quantum Impurity Problems in and out of Equilibrium with the Variational Approach [J].
Ashida, Yuto ;
Shi, Tao ;
Banuls, Mari Carmen ;
Cirac, J. Ignacio ;
Demler, Eugene .
PHYSICAL REVIEW LETTERS, 2018, 121 (02)
[7]   Midinfrared Ultrastrong Light-Matter Coupling for THz Thermal Emission [J].
Askenazi, Benjamin ;
Vasanelli, Angela ;
Todorov, Yanko ;
Sakat, Emilie ;
Greffet, Jean-Jacques ;
Beaudoin, Gregoire ;
Sagnes, Isabelle ;
Sirtori, Carlo .
ACS PHOTONICS, 2017, 4 (10) :2550-2555
[8]   Polaritons in van der Waals materials [J].
Basov, D. N. ;
Fogler, M. M. ;
Garcia de Abajo, F. J. .
SCIENCE, 2016, 354 (6309)
[9]   Extreme nanophotonics from ultrathin metallic gaps [J].
Baumberg, Jeremy J. ;
Aizpurua, Javier ;
Mikkelsen, Maiken H. ;
Smith, David R. .
NATURE MATERIALS, 2019, 18 (07) :668-678
[10]   Terahertz Light-Matter Interaction beyond Unity Coupling Strength [J].
Bayer, Andreas ;
Pozimski, Marcel ;
Schambeck, Simon ;
Schuh, Dieter ;
Huber, Rupert ;
Bougeard, Dominique ;
Lange, Christoph .
NANO LETTERS, 2017, 17 (10) :6340-6344