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Cavity and circuit QED study light-matter interaction at its most fundamental level. Yet, this interaction is most often neglected when considering the coupling of this system with an environment. In this paper, we show how this…

量子物理 · 物理学 2011-10-24 Félix Beaudoin , J. M. Gambetta , A. Blais

We analyze the behavior of systems of two and three qubits made by Josephson junctions, treated in the two level approximation, driven by a radiation mode in a cavity. The regime we consider is a strong coupling one recently experimentally…

超导电性 · 物理学 2007-05-23 Marco Frasca

Recent experimental developments in the field of semiconductor quantum dot spectroscopy will be discussed. First we report about single quantum dot exciton two-level systems and their coherent properties in terms of single qubit…

介观与纳米尺度物理 · 物理学 2007-05-23 H. J. Krenner , S. Stufler , M. Sabathil , E. C. Clark , P. Ester , M. Bichler , G. Abstreiter , J. J. Finley , A. Zrenner

We study the dynamics of a quantum dot embedded in a three-dimensional microcavity in the strong coupling regime in which the quantum dot exciton has an energy close to the frequency of a confined cavity mode. Under the continuous pumping…

介观与纳米尺度物理 · 物理学 2009-11-10 J. I. Perea , D. Porras , C. Tejedor

With an increasing coupling between light and mechanics, nonlinearities begin to play an important role in optomechanics. We solve the quantum dynamics of an optomechanical system in the multi-photon strong coupling regime retaining…

介观与纳米尺度物理 · 物理学 2016-12-21 J. D. P. Machado , Ya. M. Blanter

We show how the optical properties of a single semiconductor quantum dot can be controlled with a small dc voltage applied to a gate electrode. We find that the transmission spectrum of the neutral exciton exhibits two narrow lines with…

介观与纳米尺度物理 · 物理学 2012-09-18 A. Högele , S. Seidl , M. Kroner , K. Karrai , R. J. Warburton , B. D. Gerardot , P. M. Petroff

We discuss theoretically the light-matter coupling in a microcavity containing a quantum well with a two-dimensional electron gas. The high density limit where the bound exciton states are absent is considered. The matrix element of…

介观与纳米尺度物理 · 物理学 2007-12-01 N. S. Averkiev , M. M. Glazov

We present a detailed analysis of exciton-photon interaction in a microcavity made out of a photonic crystal slab. Here we have analyzed a disk-like quantum dot where an exciton is formed. Excitonic eigen-functions in addition to their…

量子物理 · 物理学 2009-09-17 Majid Sodagar , Milad Khoshnegar , Amin Eftekharian , Sina Khorasani

We develop a general theory of the quantum vacuum radiation generated by an arbitrary time-modulation of the vacuum Rabi frequency for an intersubband transition of a doped quantum well system embedded in a semiconductor planar microcavity.…

其他凝聚态物理 · 物理学 2015-06-25 Simone De Liberato , Cristiano Ciuti , Iacopo Carusotto

The spin-flip rate that couples dark and bright excitons in self-assembled quantum dots is obtained from time-resolved spontaneous emission measurements in a modified local density of optical states. Employing this technique, we can…

其他凝聚态物理 · 物理学 2010-03-18 Jeppe Johansen , Brian Julsgaard , Søren Stobbe , Jørn M. Hvam , Peter Lodahl

An excitonic approach to the ultrafast optical response of confined semiconductors at elevated densities below the Mott transition is presented. The theory is valid from the coherent regime, where coherent excitonic transitions and…

介观与纳米尺度物理 · 物理学 2026-02-17 Henry Mittenzwey , Oliver Voigt , Andreas Knorr

Cavity quantum electrodynamics (QED) studies the interaction between a quantum emitter and a single radiation-field mode. When an atom is in strong coupling with a cavity mode1,2, it is possible to realize key quantum information processing…

量子物理 · 物理学 2009-11-13 K. Hennessy , A. Badolato , M. Winger , D. Gerace , M. Atature , S. Gulde , S. Falt , E. L. Hu , A. Imamoglu

We study a two-level system (atom, superconducting qubit or quantum dot) strongly coupled to the single photonic mode of a cavity, in the presence of incoherent pumping and including detuning and dephasing. This system displays a striking…

量子物理 · 物理学 2011-10-12 E. del Valle , F. P. Laussy

In quantum communication and distributed quantum computing, one-dimensional waveguides provide directional transfer of quantum information. A single-mode waveguide has a density-of-states singularity at the lower cut-off frequency, which…

量子物理 · 物理学 2012-04-23 Ting Chen , Ren-Bao Liu

We study a model for a pair of qubits which interact with a single off-resonant cavity mode and, in addition, exhibit a direct inter-qubit coupling. Possible realizations for such a system include coupled superconducting qubits in a line…

介观与纳米尺度物理 · 物理学 2007-05-23 Oliver Gywat , Florian Meier , Daniel Loss , D. D. Awschalom

In this comment we show that there is a direct connection between coherent exchange of energy among light and matter and the emission spectrum of a microcavity quantum dot system as modeled in Phys. Rev. B 79, 235325 (2009)…

介观与纳米尺度物理 · 物理学 2010-06-02 Nicolás Quesada , Paulo Cárdenas , Boris A. Rodríguez

We investigate the emission properties of a single semiconductor quantum dot deterministically coupled to a confined optical mode in the weak coupling regime. A strong pulling, broadening and narrowing of the cavity mode emission is…

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…

量子物理 · 物理学 2014-08-27 Arne L. Grimsmo , Scott Parkins

Interaction of traveling wave of classic light with 1D-chain of coupled quantum dots (QDs) in strong coupling regime has been theoretically considered. The effect of space propagation of Rabi oscillations in the form of traveling waves and…

介观与纳米尺度物理 · 物理学 2008-05-28 G. Ya. Slepyan , Y. D. Yerchak , S. A. Maksimenko , A. Hoffmann

When an atom strongly couples to a cavity, it can undergo coherent vacuum Rabi oscillations. Controlling these oscillatory dynamics quickly relative to the vacuum Rabi frequency enables remarkable capabilities such as Fock state generation…

光学 · 物理学 2014-10-31 Ranojoy Bose , Tao Cai , Kaushik Roy Choudhury , Glenn S. Solomon , Edo Waks