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The structure appearance in exciton density distribution in semiconductor double quantum well with transverse electric field applied is studied, in the case when the metal electrode contains a round window. It is suggested that there is…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. A. Chernyuk , V. S. Kopp , V. I. Sugakov

Spectrum of excitons in double-quantum-well structures is calculated in tilted magnetic field. It is shown that spectrum becomes asymmetric in quasimomentum if a transverse in respect to growth direction component of magnetic field is…

Materials Science · Physics 2009-10-30 A. A. Gorbatsevich , I. V. Tokatly

The gas of interacting excitons in quantum wells is studied. We obtain the Hamiltonian of this gas by the projection of the electron-hole plasma Hamiltonian to exciton states and an expansion in a small density. Matrix elements of the…

Condensed Matter · Physics 2009-10-31 S. Ben-Tabou de-Leon , B. Laikhtman

Resonance dielectric response of excitons is studied for the high-quality GaAs/InGaAs heterostructures with wide asymmetric quantum wells (QWs). To highlight effects of the QW asymmetry, we have grown and studied several heterostructures…

The ability to generate and control strong long-range interactions via highly excited electronic states has been the foundation for recent breakthroughs in a host of areas, from atomic and molecular physics [1, 2] to quantum optics [3, 4]…

Mesoscale and Nanoscale Physics · Physics 2021-07-14 Julian Heckötter , Valentin Walther , Stefan Scheel , Manfred Bayer , Thomas Pohl , Marc Aßmann

The quantum dynamics of the coupling between a cavity optical field and a resonator microwave field via the electro-optic effect is studied. This coupling has the same form as the opto-mechanical coupling via radiation pressure, so all…

Quantum Physics · Physics 2010-07-02 Mankei Tsang

An accurate calculation of the exciton ground and excited states in AlGaAs and InGaAs coupled quantum wells (CQWs) in an external electric field is presented. An efficient and straightforward algorithm of solving the Schrodinger equation in…

Other Condensed Matter · Physics 2012-05-15 K. Sivalertporn , L. Mouchliadis , A. L. Ivanov , R. Philp , E. A. Muljarov

We investigate a cavity quantum electrodynamic effect, where the alignment of two-dimensional freely rotating optical dipoles is driven by their collective coupling to the cavity field. By exploiting the formal equivalence of a set of…

Quantum Physics · Physics 2017-08-02 Erika Cortese , Pavlos Lagoudakis , Simone De Liberato

The photoluminescence (PL) spectrum of a two-dimensional electron gas (2DEG) in the fractional quantum Hall regime is studied. The response of the 2DEG to an optically injected valence hole depends on the separation d between the electron…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Arkadiusz Wojs , John J. Quinn

Wave functions of heavy-hole excitons in GaAs/Al$_{0.3}$Ga$_{0.7}$As square quantum wells (QWs) of various widths are calculated by the direct numerical solution of a three-dimensional Schr\"odinger equation using a finite-difference…

Mesoscale and Nanoscale Physics · Physics 2021-11-24 B. F. Gribakin , E. S. Khramtsov , A. V. Trifonov , I. V. Ignatiev

We collect and review works which treat two-dimensional electron gases in quantum wells (mostly GaAs/GaAlAs heterostructures) in the presence of quantizing magnetic fields as open systems in contact with outside reservoirs. If a reservoir…

Materials Science · Physics 2015-06-16 W. Zawadzki , A. Raymond , M. Kubisa

The non-resonant interaction between the high-density excitons in a quantum well and a single mode cavity field is investigated. An analytical expression for the physical spectrum of the excitons is obtained. The spectral properties of the…

Quantum Physics · Physics 2009-11-07 Yu-xi Liu , N. Imoto , S. K. Ozdemir , Guang-ri Jin , C. P. Sun

The modes of the electromagnetic field are solutions of Maxwell's equations taking into account the material boundary conditions. The field modes of classical optics - properly normalized - are also the mode functions of quantum optics.…

Quantum Physics · Physics 2014-11-27 Birgit Stiller , Ulrich Seyfarth , Gerd Leuchs

Optical properties of a two-dimensional quantum ring with pseudopotential in the presence of an external magnetic field and magnetic flux have been theoretically investigated. Our results show that both of the pseudopotential and magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 Shijun Liang , Wenfang Xie

We show how to compute the magnetooptical functions (absorption, reflection, and transmission) when Rydberg Exciton-Polaritons appear, including the effect of the coherence between the electron-hole pair and the electromagnetic field, and…

Mesoscale and Nanoscale Physics · Physics 2017-02-15 Sylwia Zielińska-Raczyńska , David Ziemkiewicz , Gerard Czajkowski

Optical spectra of semiconductor quantum wells driven by an off-resonant oscillating field are studied theoretically. Due to the dynamical stabilization effect, the field induces the quasi-stationary electron states confined at repulsive…

Mesoscale and Nanoscale Physics · Physics 2020-12-23 O. V. Kibis , S. A. Kolodny , I. V. Iorsh

Manifestation of chiral excitons on surfaces of topological insulator thin film with magnetically induced energy gap in the surface spectrum in magnetooptical Kerr and Faraday effects is analyzes. Excitonic contribution to a surface optical…

Mesoscale and Nanoscale Physics · Physics 2013-08-14 D. K. Efimkin , Yu. E. Lozovik

We analyze theoretically the Coulomb scattering processes of highly excited excitons in the direct bandgap semiconductor quantum wells. We find that contrary to the interaction of ground state excitons the electron and hole exchange…

Mesoscale and Nanoscale Physics · Physics 2016-06-15 V. Shahnazaryan , I. A. Shelykh , O. Kyriienko

Quasiparticle excitation energies and optical properties of TiO$_{2}$ in the rutile and anatase structures are calculated using many-body perturbation theory methods. Calculations are performed for a frozen crystal lattice; electron-phonon…

Materials Science · Physics 2010-08-16 Wei Kang , Mark S. Hybertsen

Excitons -- bound electron-hole pairs -- play a central role in light-matter interaction phenomena, and are crucial for wide-ranging applications from light harvesting and generation to quantum information processing. A long-standing…

Mesoscale and Nanoscale Physics · Physics 2023-08-15 Jenny Hu , Etienne Lorchat , Xueqi Chen , Kenji Watanabe , Takashi Taniguchi , Tony F. Heinz , Puneet A. Murthy , Thibault Chervy