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Unlike one-photon (first order) intensity correlation, two-photon (second order) intensity correlation is known to be impossible to achieve by any classical means. Over the last several decades, such quantum features have been intensively…

Quantum Physics · Physics 2023-09-22 Byoung S. Ham

We develop a Feynman rule for energy-level diagrams emphasizing their connections to the double-sided Feynman diagrams and physical processes in the Liouville space. Thereby we completely identify such diagrams and processes contributing to…

Chemical Physics · Physics 2016-09-28 Ko Okumura , Yoshitaka Tanimura

Spatially entangled twin photons allow the study of high-dimensional entanglement, and the Laguerre-Gauss modes are the most commonly used basis to discretize the single photon mode spaces. In this basis, to date only the azimuthal degree…

Quantum Physics · Physics 2012-04-27 V. D. Salakhutdinov , E. R. Eliel , W. Löffler

Coulomb correlations in the optical spectra of semiconductor quantum dots are investigated using a full-diagonalization approach. The resulting multi-exciton spectra are discussed in terms of the symmetry of the involved states.…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Norman Baer , Paul Gartner , Frank Jahnke

We investigate theoretically two-photon processes in a microcavity containing one quantum dot in the strong coupling regime. The cavity mode can be tuned to resonantly drive the two-photon transition between the ground and the biexciton…

Mesoscale and Nanoscale Physics · Physics 2010-01-08 Elena del Valle , Stefano Zippilli , Fabrice P. Laussy , Alejandro Gonzalez-Tudela , Giovanna Morigi , Carlos Tejedor

Quantum computing and quantum communication, have been greatly developed in recent years and expected to contribute to quantum internet technologies, including cloud quantum computing and unconditionally secure communication. However,…

Moir\'e superlattices open an unprecedented opportunity for tailoring interactions between quantum particles and their coupling to electromagnetic fields. Strong superlattice potential generates moir\'e minibands of excitons -- bound pairs…

Materials Science · Physics 2020-02-25 Yanhao Tang , Jie Gu , Song Liu , Kenji Watanabe , Takashi Taniguchi , James Hone , Kin Fai Mak , Jie Shan

Spectrum of boson fields and two-point correlators are analyzed in quantum crossbars (QCB, a superlattice formed by two crossed interacting arrays of quantum wires), with short range inter-wire interaction. It is shown that the standard…

Strongly Correlated Electrons · Physics 2007-05-23 K. Kikoin , I. Kuzmenko , S. Gredeskul , Y. Avishai

The development of new quantum light sources requires robust and convenient methods of characterizing their joint spectral properties. Measuring the joint spectral intensity between a photon pair ignores any correlations in spectral phase…

Quantum Physics · Physics 2020-12-02 Bryn A. Bell , Gil Triginer Garces , Ian A. Walmsley

Two-frequency radiative transfer (2f-RT) theory is developed for geometrical optics in random media. The space-frequency correlation is described by the two-frequency Wigner distribution (2f-WD) which satisfies a closed form equation, the…

Optics · Physics 2009-11-13 Albert C. Fannjiang

The dynamics of the exciton-photon entanglement, in a semiconductor microcavity is analyzed. Finding a closed analytical expression for the time evolution of the concurrence. Using as model two coupled, quantum oscillators with detuning…

Mesoscale and Nanoscale Physics · Physics 2011-03-07 Ruben Dario Guerrero

The emission spectral pattern of a charged exciton in a semiconductor quantum dot is composed of a quadruplet of linearly polarized lines in the presence of a magnetic field oriented perpendicularly to the direction of the photon momentum.…

Materials Science · Physics 2009-01-16 D. Y. Oberli , M. Byszewski , B. Chalupar , E. Pelucchi , A. Rudra , E. Kapon

Achieving quantum correlations between two distant systems is a desirable feature for quantum networking. In this work, we study a system composed of two quantum emitter-cavity subsystems spatially separated. A mechanical resonator couples…

Mesoscale and Nanoscale Physics · Physics 2018-11-14 J. E. Ramírez-Muñoz , J. P. Restrepo Cuartas , H. Vinck-Posada

Spectrum of boson fields and two-point correlators are analyzed in quantum crossbars (QCBs, a superlattice formed by m crossed interacting arrays of quantum wires), with short range inter-wire capacitive interaction. Spectral and…

Strongly Correlated Electrons · Physics 2009-11-07 I. Kuzmenko , S. Gredeskul , K. Kikoin , Y. Avishai

We show how two electrically coupled semiconductor lasers having optical feedback can present simultaneous anti-phase correlated fast power fluctuations, and strong in-phase synchronized spikes of chaotic power drops. This quite counter…

Semiconductor microresonators embedding quantum wells can host tightly confined and mutually interacting excitonic, optical and mechanical modes at once. We theoretically investigate the case where the system operates in the strong…

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

Controlling the coherent optical response of inhomogeneous ensembles is a key challenge in advancing light-matter interaction engineering. We present a comparative study of two spectral tailoring approaches using two-dimensional coherent…

Optics · Physics 2026-01-12 Pradeep Kumar , Rohan Singh

We demonstrate a new class of frequency-entangled states generated via spontaneous parametric down-conversion under extended phase matching conditions. Biphoton entanglement with coincident signal and idler frequencies is observed over a…

Quantum Physics · Physics 2009-11-10 Onur Kuzucu , Marco Fiorentino , Marius A. Albota , Franco N. C. Wong , Franz X. Kaertner

We study the fluorescence light emitted from GaAs excitons in semiconductor quantum wells. The excitons are modeled as interacting bosons. By combining quantum optical methods for the excitonic emission spectrum with many particle…

Quantum Physics · Physics 2013-11-25 P. Grünwald , G. K. G. Burau , H. Stolz , W. Vogel
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