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We show how the photon statistics emitted by a large variety of light-matter systems under weak coherent driving can be understood, to lowest order in the driving, in the framework of an admixture of (or interference between) a squeezed…

Quantum Physics · Physics 2020-05-29 E. Zubizarreta Casalengua , J. C. López Carreño , F. P. Laussy , E. del Valle

We investigate the photon statistics of an ensemble of coherently driven non-interacting two-level atoms in the weak driving regime. As it turns out, the system displays unique emission characteristics that are strongly in contrast to the…

Quantum Physics · Physics 2024-11-27 M. Bojer , A. Cidrim , P. P. Abrantes , R. Bachelard , J. von Zanthier

We investigate the collective interaction of a multi-atom three-level ladder system with an environmental incoherent reservoir. The exact solution of the master equation that describes such a system of atoms emitting distinguishable or…

Quantum Physics · Physics 2013-01-30 Baranidharan Mohanand , Mihai A. Macovei

We study the photon-photon correlation properties of two-photon transport in a one-dimensional waveguide coupled to a nonlinear cavity via a real-space approach. It is shown that the intrinsic dissipation of the nonlinear cavity has an…

Quantum Physics · Physics 2014-09-24 Xun-Wei Xu , Yong Li

Negativity has been adopted to investigate the entanglement in a system composed of a two-level atom and a two-mode cavity field. Effects of Kerr-like medium and the number of photon inside the cavity on the entanglement are studied. Our…

Quantum Physics · Physics 2015-05-13 Liu Jia , Chen Zi-Yu , Bu Shen-Ping , Zhang Guo-Feng

Photon counting statistics are explored, theoretically, from a pair of cavity modes coupled to the fluorescent transitions in a strongly-driven two-level atom. We show that the cavity modes acquire nonclassical photon statistics that are…

Quantum Physics · Physics 2025-10-30 Alex Elliott , Jacob Ngaha , Scott Parkins , Takao Aoki

Optical nonlinearities typically require macroscopic media, thereby making their implementation at the quantum level an outstanding challenge. Here we demonstrate a nonlinearity for one atom enclosed by two highly reflecting mirrors. We…

Quantum Physics · Physics 2008-05-13 I. Schuster , A. Kubanek , A. Fuhrmanek , T. Puppe , P. W. H. Pinkse , K. Murr , G. Rempe

The cooling effects of a nonlinear quantum oscillator via its interaction with an artificial atom (qubit) are investigated. The quantum dissipations through the environmental reservoir of the nonlinear oscillator are included, taking into…

Quantum Physics · Physics 2015-05-18 Mihai A. Macovei , Xiao-Tao Xie

Photoinduced Kerr rotation by more than $\pi /2$ radians is demonstrated in planar quantum well microcavity in the strong coupling regime. This result is close to the predicted theoretical maximum of $\pi $. It is achieved by engineering…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 R. V. Cherbunin , M. Vladimirova , K. V. Kavokin , A. V. Mikhailov , N. E. Kopteva , P. G. Lagoudakis , A. V. Kavokin

Achieving the regime of single-photon nonlinearities in photonic devices just exploiting the intrinsic high-order susceptibilities of conventional materials would open the door to practical semiconductor-based quantum photonic technologies.…

Quantum Physics · Physics 2022-10-26 Davide Nigro , Marco Clementi , Camille Sophie Brès , Marco Liscidini , Dario Gerace

Quantum interference and quantum correlation, as two main features of quantum optics, play an essential role in quantum information applications, such as multi-particle quantum walk and boson sampling. While many experimental demonstrations…

Quantum thermal transport and two-photon statistics serve as two representative nonequilibrium features in circuit quantum electrodynamics systems. Here, we investigate quantum heat flow and two-photon correlation function at steady-state…

Quantum Physics · Physics 2021-09-07 Zhe-Huan Chen , Han-Xin Che , Zhe-Kai Chen , Chen Wang , Jie Ren

We investigate the resonant quantum dynamics of a laser-pumped real or artificial two-level single-atom system embedded in a leaking microcavity. We found that for stronger laser-atom-cavity couplings the generated microcavity photons…

Quantum Physics · Physics 2015-06-16 Viorel Ciornea , Profirie Bardetski , Mihai A. Macovei

We in this paper study quantum correlations for two neutral spin-particles coupled with a single-mode optical cavity through the usual magnetic interaction. Two-spin entangled states for both antiparallel and parallel spin-polarizations are…

Quantum Physics · Physics 2017-08-02 Xue-Min Bai , Chun-Ping Gao , Jun-Qi Li , Ni Liu , J. -Q. Liang

The second-order coherence of light is a widely recognized physical quantity used to assess the quantum characteristics of light, and its properties have been extensively investigated in the field of quantum optics. Recently, it has been…

Quantum Physics · Physics 2024-07-15 Masanori Tomonaga , Yasusada Nambu

We analyze the creation and emission of pairs of highly nonclassical microwave photons in a setup where a voltage-biased Josephson junction is connected in series to two electromagnetic oscillators. Tuning the external voltage such that the…

Mesoscale and Nanoscale Physics · Physics 2017-06-19 Simon Dambach , Björn Kubala , Joachim Ankerhold

We investigate the quantum nonlinear dynamics of a resonantly excited photonic quantum dot embedding a quantum well in the strong exciton-photon coupling regime. Within a master equation approach, we study the polariton quantum blockade and…

Other Condensed Matter · Physics 2009-11-11 Arnaud Verger , Cristiano Ciuti , Iacopo Carusotto

Photons, by nature, typically do not exhibit interactions with each other. Creating photon-photon interactions holds immense importance in both fundamental physics and quantum technologies. Currently, such interactions have only been…

Quantum Physics · Physics 2023-10-26 Mengdi Zhao , Yunkai Wang , Shanhui Fan , Kejie Fang

An effective toy model for an ideal one-dimensional nonstationary cavity is taken to be the starting point to derive a fitting markovian master equation for the corresponding leaky cavity. In the regime where the generation of photons via…

Quantum Physics · Physics 2019-07-01 R. Román-Ancheyta , O. de los Santos-Sánchez , C. González-Gutiérrez

The radiative linewidth of a two-level emitter (TLE) fundamentally limits the bandwidth available for quantum information processing. Despite its importance, no prior experiment has systematically examined how driving detuning affects the…

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