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The spatial and temporal dynamics of wave propagation are intertwined. A common manifestation of this duality emerges in the spatial and temporal decay of waves as they propagate through a lossy medium. A complete description of the…

Using microscopic models in which both photons and excitons are treated as microscopic degrees of freedom, we discuss polaritons of two cases: One is the case when excitonic parameters are time dependent. The time dependence causes creation…

Quantum Physics · Physics 2011-04-15 Akira Shimizu , Teruaki Okushima , Kazuki Koshino

The growing interest in exciton-polaritons has driven the need to manipulate their motion and engineer their band structures to the forefront of contemporary research. This study explores the band structures that emerge from a spatially…

Optics · Physics 2025-10-09 Xingran Xu , Chunyu Jia , Xin-Xin Yang

Propagation, transmission and reflection properties of linearly polarized plane waves and arbitrarily short electromagnetic pulses in one-dimensional dispersionless dielectric media possessing an arbitrary space-time dependence of the…

We report a Keldysh-like model for the electron transition rate in dielectrics under an intense circularly polarized laser. We assume a parabolic two-band system and the Houston function as the time-dependent wave function of the valence…

Mesoscale and Nanoscale Physics · Physics 2016-12-21 T. Otobe , Y. Shinohara , S. A. Sato , K. Yabana

Exciton-polaritons are mutually interacting quantum hybridizations of confined photons and electronic excitations. Here we demonstrate a system of optically guided, electrically polarized exciton-polaritons ('dipolaritons') that displays up…

Mesoscale and Nanoscale Physics · Physics 2018-04-18 Itamar Rosenberg , Dror Liran , Yotam Mazuz-Harpaz , Kenneth West , Loren Pfeiffer , Ronen Rapaport

Nonperturbative coupling between cavity photons and excitons leads to formation of hybrid light-matter excitations termed polaritons. In structures where photon absorption leads to creation of excitons with aligned permanent dipoles, the…

Mesoscale and Nanoscale Physics · Physics 2018-11-30 Emre Togan , Hyang-Tag Lim , Stefan Faelt , Werner Wegscheider , Atac Imamoglu

The polarization dependence of nonequilibrium transitions in a multistable cavity-polariton system is studied under a nanosecond long resonant optical excitation at the normal and magic angle incidences with various polarizations of the…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 S. S. Gavrilov , A. S. Brichkin , A. A. Demenev , A. A. Dorodnyy , S. I. Novikov , S. G. Tikhodeev , N. A. Gippius , V. D. Kulakovskii

When a strongly disordered system of interacting quantum dipoles is locally excited, the excitation relaxes on some (potentially very long) timescale. We analyze this relaxation process, both for electron glasses with strong Coulomb…

Disordered Systems and Neural Networks · Physics 2021-04-21 Rahul Nandkishore , Sarang Gopalakrishnan

We formulate a full quantum mechanical theory of the interaction between electromagnetic modes in photonic crystal slabs and quantum well excitons embedded in the photonic structure. We apply the formalism to a high index dielectric layer…

Soft Condensed Matter · Physics 2009-11-10 D. Gerace , M. Agio , L. C. Andreani

We investigate photon pair-creation in a dispersive dielectric medium induced by the presence of a spacetime varying dielectric constant. Our aim is to examine the possibility to observe new phenomena of pair creation induced by travelling…

Quantum Physics · Physics 2015-06-18 Francesco Belgiorno , Sergio Luigi Cacciatori , Francesco Dalla Piazza

We investigate the two-pulse photon echo response of excitons in the mixed lead halide perovskite crystal \sample in dependence on the excitation intensity and polarization of the incident laser pulses. Using spectrally narrow picosecond…

Canonical quantization of electromagnetic field inside the time--spatially dispersive inhomogeneous dielectrics is presented. Interacting electromagnetic and matter excitation fields create the closed system, Hamiltonian of which may be…

Quantum Physics · Physics 2009-10-28 Zdenek Hradil

Electron-positron interactions have been utilized in various fields of science. Here we develop time-dependent multi-component density functional theory to study the coupled electron-positron dynamics from first principles. We prove that…

Chemical Physics · Physics 2018-10-03 Yasumitsu Suzuki , Satoshi Hagiwara , Kazuyuki Watanabe

Cavity quantum electrodynamics (CQED) and its extensions are widely used for the description of exciton-polariton systems. However, the exciton-polariton models based on CQED vary greatly within different contexts. One of the most…

Quantum Physics · Physics 2026-05-21 Yi-Ting Chuang , Liang-Yan Hsu

Observations of polariton condensation in semiconductor microcavities suggest that polaritons can be exploited as a novel type of laser with low input-power requirements. The low-excitation regime is approximately equivalent to thermal…

Mesoscale and Nanoscale Physics · Physics 2013-07-16 Tomoyuki Horikiri , Yasuhiro Matsuo , Yutaka Shikano , Andreas Loeffler , Sven Hoefling , Alfred Forchel , Yoshihisa Yamamoto

Exciton-polaritons are hybrid elementary excitations of light and matter that, thanks to their nonlinear properties, enable a plethora of physical phenomena ranging from room temperature condensation to superfluidity. While polaritons are…

Mesoscale and Nanoscale Physics · Physics 2022-03-23 Davide Nigro , Vincenzo D'Ambrosio , Daniele Sanvitto , Dario Gerace

Nonlinear QED interactions induce different polarization properties on a given probe beam. We consider the polarization effects caused by the photon-photon interaction in laser experiments, when a laser beam propagates through a constant…

High Energy Physics - Phenomenology · Physics 2017-04-03 Soroush Shakeri , Seyed Zafarollah Kalantari , She-Sheng Xue

In this study, we investigate the dynamics of dispersive photonic time crystals (PTCs) and their potential applications for controlling light-matter interaction. By employing the Lorentz-Drude model, we analyze theoretically and via…

Coupling light to Rydberg states of atoms under conditions of electromagnetically induced transparency (EIT) leads to the formation of strongly interacting quasi-particles, termed Rydberg polaritons. We derive a one-dimensional model…

Quantum Physics · Physics 2015-11-25 Matthias Moos , Michael Hoening , Razmik Unanyan , Michael Fleischhauer
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