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We analyze the interaction of a propagating guided electromagnetic wave with a quantum well embedded in a dielectric slab waveguide. First, we design a quantum well based on InAlGaAs compounds with the transition energy of 0.8eV…

Mesoscale and Nanoscale Physics · Physics 2015-09-30 Farhad Karimi , Sina Khorasani

We study theoretically the optical properties of quantum tubes, one-dimensional semiconductor nanostructures where electrons and holes are confined to a cylindrical shell. In these structures, which bridge between 2D and 1D systems, the…

Materials Science · Physics 2015-05-18 David Kammerlander , Filippo Troiani , Guido Goldoni

We study the dynamics of a general multi-emitter system coupled to the squeezed vacuum reservoir and derive a master equation for this system based on the Weisskopf-Wigner approximation. In this theory, we include the effect of positions of…

Quantum Physics · Physics 2018-02-14 Jieyu You , Zeyang Liao , Sheng-Wen Li , M. Suhail Zubairy

We construct a theory for Bose-Einstein condensation of light in nano-fabricated semiconductor microcavities. We model the semiconductor by one conduction and one valence band which consist of electrons and holes that interact via a Coulomb…

Quantum Gases · Physics 2016-07-27 A. -W. de Leeuw , E. C. I. van der Wurff , R. A. Duine , D. van Oosten , H. T. C. Stoof

Amplitude squeezed pulsed light has been produced using a microstructured silica fibre. By spectrally filtering after the nonlinear propagation in the fibre a squeezing value of -1.7dB has been measured. A quantum key distribution scheme…

Quantum Physics · Physics 2009-11-07 S. Lorenz , Ch. Silberhorn , N. Korolkova , R. S. Windeler , G. Leuchs

The degree of ionization of a nondegenerate two-dimensional electron-hole plasma is calculated using the modified law of mass action, which takes into account all bound and unbound states in a screened Coulomb potential. Application of the…

Statistical Mechanics · Physics 2009-10-31 M. E. Portnoi , I. Galbraith

Virtually all interactions that are relevant for atomic and condensed matter physics are mediated by quantum fluctuations of the electromagnetic field vacuum. Consequently, controlling the vacuum fluctuations can be used to engineer the…

Quantum Gases · Physics 2017-06-21 Sina Zeytinoglu , Atac Imamoglu , Sebastian Huber

We study the quantum fluctuations of the two quadratures of the emitted electromagnetic radiation generated by a quantum Hall device in a quantum point contact geometry. In particular, we focus our attention on the role played by the…

Mesoscale and Nanoscale Physics · Physics 2021-06-11 G. Rebora , D. Ferraro , M. Sassetti

When linearly polarized light propagates through a medium in which elliptically polarized light would undergo self-rotation, squeezed vacuum can appear in the orthogonal polarization. A simple relationship between self-rotation and the…

Quantum Physics · Physics 2009-11-07 A. B. Matsko , I. Novikova , G. R. Welch , D. Budker , D. F. Kimball , S. M. Rochester

We report on the observation of spontaneous bursts of coherent radiation from a quantum-degenerate gas of nonequilibrium electron-hole pairs in semiconductor quantum wells. Unlike typical spontaneous emission from semiconductors, which…

Mesoscale and Nanoscale Physics · Physics 2013-12-17 J. -H. Kim , G. T. Noe , S. A. McGill , Y. Wang , A. K. Wojcik , A. A. Belyanin , J. Kono

We calculate the dynamical fluctuation spectrum of electronic spins in a semiconductor under a steady-state illumination by light containing polarization squeezing correlations. Taking into account quasi-particle lifetime and spin…

Other Condensed Matter · Physics 2009-11-13 Eran Ginossar , Yehoshua Levinson , Shimon Levit

Optical and electronic phenomena in solids arise from the behaviour of electrons and holes (unoccupied states in a filled electron sea). Electron-hole symmetry can often be invoked as a simplifying description, which states that electrons…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Pablo Jarillo-Herrero , Sami Sapmaz , Cees Dekker , Leo P. Kouwenhoven , Herre S. J. van der Zant

We consider the energy spectrum of the planar quantum well which consisted of two ribbons of narrow-gap semiconductors and a graphene ribbon between ones. It is shown that the gapless mode appears only in case of inverted narrow-gap…

Other Condensed Matter · Physics 2015-05-13 P. V. Ratnikov , A. P. Silin

Reflectance, transmittance and absorbance of a symmetric light pulse, the carrying frequency of which is close to the frequency of interband transitions in a quantum well, are calculated. Energy levels of the quantum well are assumed…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 L. I. Korovin , I. G. Lang , S. T. Pavlov

We consider a semiconductor quantum well in a microcavity driven by coherent light and coupled to a squeezed vacuum reservoir. By systematically solving the pertinent quantum Langevin equations in the strong coupling and low excitation…

Quantum Physics · Physics 2011-09-21 Eyob A. Sete , Sumanta Das , H. Eleuch

Achieving high level of pulsed squeezing, in a platform which offers integration and stability, is a key requirement for continuous-variable quantum information processing. Typically highly squeezed states are achieved with narrow band…

We provide a unified theory of luminescence spectra of coupled light-matter systems realized with semiconductor heterostructures in microcavities, encompassing: i) the spontaneous emission case, where the system decays from a prepared…

Mesoscale and Nanoscale Physics · Physics 2009-07-09 Fabrice P. Laussy , Elena del Valle , Carlos Tejedor

Engineering quantum phases using light is a novel route to designing functional materials, where light-induced superconductivity is a successful example. Although this phenomenon has been realized experimentally, especially for the…

Superconductivity · Physics 2021-11-23 Yao Wang , Tao Shi , Cheng-Chien Chen

We theoretically investigate the interaction of a single quantum dipole with the modes of a fiber-coupled semiconductor waveguide. Through a combination of tight modal confinement and phase-matched evanescent coupling, we predict that…

Quantum Physics · Physics 2015-05-13 Marcelo Davanco , Kartik Srinivasan

It was shown by a study of the incoherent part of the low-frequency resonance fluorescence spectrum of the polar quantum emitter driven by semiclassical external laser field and damped by non-squeezed vacuum reservoir that the emitted…

Quantum Physics · Physics 2021-12-23 Andrey V. Soldatov