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Motivated by recent ``circuit QED'' experiments we study the lasing transition and spectral properties of single-qubit lasers. In the strong coupling, low-temperature regime quantum fluctuations dominate over thermal noise and strongly…

Mesoscale and Nanoscale Physics · Physics 2010-11-09 Stephan André , Pei-Qing Jin , Valentina Brosco , Jared H. Cole , Alessandro Romito , Alexander Shnirman , Gerd Schön

It is usually considered that the spectrum of an optical cavity coupled to an atomic medium does not exhibit a normal-mode splitting unless the system satisfies the strong coupling condition, meaning the Rabi frequency of the coherent…

Quantum Physics · Physics 2017-01-06 Y. -H. Lien , G. Barontini , M. Scheucher , M. Mergenthaler , J. Goldwin , E. A. Hinds

Colloidal semiconductor nanocrystals are promising building blocks for optoelectronics due to their solution processability, spectral tunability, and ability to self-assemble into complex architectures. However, their use in lasing…

Simultaneous two-state lasing is a unique property of semiconductor quantum-dot (QD) lasers. This not only changes steady-state characteristics of the laser device but also its dynamic response to perturbations. In this paper we investigate…

Optics · Physics 2024-02-23 Stefan Meinecke , Benjamin Lingnau , André Röhm , Kathy Lüdge

Spin exchange between a single-electron charged quantum dot and itinerant electrons leads to an emergence of Kondo correlations. When the quantum dot is driven resonantly by weak laser light, the resulting emission spectrum allows for a…

Strongly Correlated Electrons · Physics 2013-10-14 B. Sbierski , M. Hanl , A. Weichselbaum , H. E. Tureci , M. Goldstein , L. I. Glazman , J. von Delft , A. Imamoglu

Nonperturbative coupling of light with condensed matter in an optical cavity is expected to reveal a host of coherent many-body phenomena and states. In addition, strong coherent light-matter interaction in a solid-state environment is of…

The stationary spectrum of individual dipole emitters in plasmonic nanocavities has been studied for a range of cavity geometries and dipole configurations. Less is known about the coherent dynamics of single photon creation in the…

Quantum Physics · Physics 2025-09-04 Athul S. Rema , Adrián E. Rubio López , Felipe Herrera

We consider the near-resonant interaction between a single atom and a focused light mode, where a single atom localized at the focus of a lens can scatter a significant fraction of light. Complementary to previous experiments on extinction…

Strong light-matter interactions in both the single-emitter and collective strong coupling regimes attract significant attention due to emerging quantum and nonlinear optics applications, as well as opportunities for modifying…

Mesoscale and Nanoscale Physics · Physics 2019-09-11 Tuomas P. Rossi , Timur Shegai , Paul Erhart , Tomasz J. Antosiewicz

We investigate the behavior of a circuit QED device when the resonator is initially populated with a mesoscopic coherent field. The strong coupling between the cavity and the qubit produces an entangled state involving mesoscopic…

Quantum Physics · Physics 2008-04-16 Valentin Bonzom , Hichem Bouzidi , Pascal Degiovanni

The realization of strong nonlinear coupling between single photons has been a long-standing goal in quantum optics and quantum information science, promising wide impact applications, such as all-optical deterministic quantum logic and…

Large single-atom cooperativity in quantum systems is important for quantum information processing. Here, we propose to exponentially enhance the single-atom cooperativity parameter by exploiting the strongly localized effect of modes in…

Quantum Physics · Physics 2025-09-08 Qian Bin , Ying Wu , Jin-Hua Gao , Aixi Chen , Franco Nori , Xin-You Lü

Recently, the concept of strong light-matter coupling has been demonstrated in semiconductor structures, and it is poised to revolutionize the design and implementation of components, including solid state lasers and detectors. We…

Experiments based on cavity quantum electrodynamics (QED) are widely used to study the interaction of a light field with a discrete frequency spectrum and emitters. More recently, the field of waveguide QED has attracted interest due to the…

Strong coupling between lead halide perovskite materials and optical resonators enables both the polaritonic control of the photophysical properties of these emerging semiconductors and the observation of novel fundamental physical…

We propose a quantum simulation of a two-level atom coupled to a single mode of the electromagnetic field in the ultrastrong-coupling regime based upon resonant Raman transitions in an atom interacting with a high finesse optical cavity…

Quantum Physics · Physics 2014-08-27 Arne L. Grimsmo , Scott Parkins

Rabi oscillations are periodic modulations of populations in two-level systems interacting with a time-varying field. They are ubiquitous in physics with applications in different areas such as photonics, nano-electronics, electron…

The study of light-matter interaction has seen a resurgence in recent years, stimulated by highly controllable, precise, and modular experiments in cavity quantum electrodynamics (QED). The achievement of strong coupling, where the coupling…

We present a theoretical and experimental study of photonic and electronic transport properties of a voltage biased InAs semiconductor double quantum dot (DQD) that is dipole-coupled to a superconducting transmission line resonator. We…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 Manas Kulkarni , Ovidiu Cotlet , Hakan E. Türeci

We revisit the superstrong coupling regime of multi-mode cavity quantum electrodynamics (QED), defined to occur when the frequency of vacuum Rabi oscillations between the qubit and the nearest cavity mode exceeds the cavity's free spectral…

Quantum Physics · Physics 2022-10-27 Nitish Mehta , Cristiano Ciuti , Roman Kuzmin , Vladimir E. Manucharyan
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