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We provide an analytic propagator for non-Hermitian dimers showing linear gain or losses in the quantum regime. In particular, we focus on experimentally feasible realizations of the $\mathcal{PT}$-symmetric dimer and provide their mean…

量子物理 · 物理学 2017-08-09 José Delfino Huerta Morales , B. M. Rodríguez-Lara

Dissipation is a ubiquitous phenomenon in dynamical systems encountered in nature because no finite system is fully isolated from its environment. In optical systems, a key challenge facing any technological application has traditionally…

光学 · 物理学 2014-10-20 Konstantinos G. Makris , Li Ge , Hakan E. Tureci

The statistics of transmitted photons in microwave cavities play a foundational role in microwave quantum optics and its technological applications. By utilizing quantum mechanical phase-space methods, we here develop a general theory of…

介观与纳米尺度物理 · 物理学 2025-04-02 Kalle S. U. Kansanen , Pedro Portugal , Christian Flindt , Peter Samuelsson

The nonlinear propagation of intense incoherent photons in a photon gas is considered. The photon-photon interactions are governed by a pair of equations comprising a wave-kinetic equation for the incoherent photons in the presence of the…

高能物理 - 唯象学 · 物理学 2008-11-26 Padma K. Shukla , Mattias Marklund , Gert Brodin , Lennart Stenflo

Photon distribution function, means and dispersions are found explicitly for the nonclassical state of light which is created from the photon--added coherent state $\vert \alpha,m \rangle$ due to a time--dependence of the frequency of the…

高能物理 - 理论 · 物理学 2009-09-25 V. V. Dodonov , Ya. A. Korennoy , V. I. Man'ko , Y. A. Muukhin

We theoretically study cooperative effects in the steady-state transmission of photons through a medium of $N$ radiators. Using methods from quantum transport, we find a cross-over in scaling from $N$ to $N^2$ in the current and even higher…

量子物理 · 物理学 2011-09-19 Malte Vogl , Gernot Schaller , Tobias Brandes

Semiconductor quantum dots are promising building blocks for quantum communication applications. Although deterministic, efficient, and coherent emission of entangled photons has been realized, implementing a practical quantum repeater…

Fluctuations of the atomic positions are at the core of a large class of unusual material properties ranging from quantum para-electricity to high temperature superconductivity. Their measurement in solids is the subject of an intense…

A theory of non-linear emission of quantum dot ensembles coupled to the optical mode of the microcavity is presented. Numerical results are compared with analytical approaches. The effects of exciton-exciton interaction within the quantum…

介观与纳米尺度物理 · 物理学 2015-06-11 A. N. Poddubny , M. M. Glazov , N. S. Averkiev

By a generalization of the Hopfield model, we construct a microscopic Lagrangian describing a dielectric medium with dispersion and dissipation. This facilitates a well-defined and unambiguous $\textit{ab initio}$ treatment of quantum…

量子物理 · 物理学 2021-01-04 Sascha Lang , Ralf Schützhold , William G. Unruh

Exciton-polaritons are mixed light-matter quasiparticles. We have developed a statistical model describing stochastic exciton-photon transitions within a condensate of exciton polaritons. We show that the exciton-photon correlator depends…

介观与纳米尺度物理 · 物理学 2018-07-10 A. V. Kavokin , A. S. Sheremet , I. A. Shelykh , P. G. Lagoudakis , Y. G. Rubo

A commonly held tenet is that lasers well above threshold emit photons in a coherent state, which follow a Poissonian statistics when measured in photon number. This feature is often exploited to build quantum-based random number generators…

量子物理 · 物理学 2018-09-10 J. F. Dynes , M. Lucamarini , K. A. Patel , A. W. Sharpe , Z. L. Yuan , A. J. Shields

While quantum mechanics precludes the perfect knowledge of so-called "conjugate" variables, such as time and frequency, we discuss the importance of compromising to retain a fair knowledge of their combined values. In the case of light, we…

量子物理 · 物理学 2018-02-14 Elena del Valle , Juan Camilo López Carreño , Fabrice P. Laussy

The propagation of polarized photons in optical media can be effectively modeled by means of quantum dynamical semigroups. These generalized time evolutions consistently describe phenomena leading to loss of phase coherence and dissipation…

量子物理 · 物理学 2009-11-07 F. Benatti , R. Floreanini

Using cumulant expansion in Gaussian approximation, the internal quantum statistics of damped soliton-like pulses in Kerr media are studied numerically, considering both narrow and finite bandwidth spectral pulse components. It is shown…

量子物理 · 物理学 2009-10-31 Eduard Schmidt , Ludwig Knoll , Dirk-Gunnar Welsch

We study theoretically the photon statistics of the field emitted from two optically coupled semiconductor microcavities each containing a quantum well. The emission is determined by the interplay between exciton-photon coupling in each…

介观与纳米尺度物理 · 物理学 2018-08-15 Shahnoor Ali , Aranya B Bhattacherjee

Photon splitting cascades in a magnetic field are considered. It is shown, in the stochastic limit approximation, that photons in cascades might form entangled states (``triphons'') and that they obey not Bose but a new type of statistics,…

高能物理 - 唯象学 · 物理学 2007-05-23 L. Accardi , I. Ya. Aref'eva , I. V. Volovich

A theoretical description of radiation-matter coupling for semiconductor-based photonic crystal slabs is presented, in which quantum wells are embedded within the waveguide core layer. A full quantum theory is developed, by quantizing both…

软凝聚态物质 · 物理学 2009-11-13 D. Gerace , L. C. Andreani

Nonlinear interactions between single quantum particles are at the heart of any quantum information system, including analog quantum simulation and fault-tolerant quantum computing. This remains a particularly difficult problem for photonic…

Optical properties of large arrays of isolated quantum dots are discussed in order to interpret the existent photoluminescence data. The presented theory explains the large observed shift between the lowest emission and absorption energies…

凝聚态物理 · 物理学 2009-10-28 E. V. Tsiper