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Coupling of quantum emitters in a semiconductor relies, generally, on short-range dipole-dipole or electronic exchange type interactions. Consistently, energy transfer between exciton states, that is, electron-hole pairs bound by Coulomb…

Mesoscale and Nanoscale Physics · Physics 2024-09-17 Maciej Ściesiek , Krzysztof Sawicki , Wojciech Pacuski , Kamil Sobczak , Tomasz Kazimierczuk , Andrzej Golnik , Jan Suffczyński

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

A novel approach for the control of exciton-exciton Coulomb coupling in semiconductor macroatoms/molecules is proposed. We show that by applying properly tailored external fields, we can induce ---or significantly reinforce--- excitonic…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 I. D'Amico , F. Rossi

Exciton optomechanics, bridging cavity exciton polaritons and optomechanics, opens new opportunities for the study of light-matter strong interactions and nonlinearities, due to the rich nonlinear couplings among excitons, phonons, and…

Quantum Physics · Physics 2024-11-06 Xuan Zuo , Zhi-Yuan Fan , Huai-Bing Zhu , Jie Li

We show that an exciton on a discrete chain of sites can be guided by effective measurements induced by an ambient, non-equilibrium medium that is synchronised to the exciton transport. For experimental verification, we propose a hybrid…

Quantum Physics · Physics 2024-08-16 K. Mukherjee , S. Wüster

An exciton beam splitter is designed and computationally implemented, offering the prospect of excitonic interferometry. Exciton interaction between propagation conduits is modeled using a coupling parameter that varies with position. In…

Quantum Physics · Physics 2019-10-21 Ariel Shlosberg , Mark T. Lusk

We show that with a system of electrically-gated wide quantum wells embedded inside a simple dielectric waveguide structure, it is possible to excite, control, and observe waveguided exciton polaritons that carry an electric dipole moment.…

Quantum Gases · Physics 2016-06-15 Itamar Rosenberg , Yotam Harpaz , Kenneth West , Loren Pffeifer , Ronen Rapaport

Excitons are two-particle correlated bound states that are formed due to Coulomb interaction between single-particle holes and electrons. In the solid-state, cooperative interactions with surrounding quasiparticles can strongly tailor the…

Exciton-polaritons - coherently hybridized states of excitons and photons - are instrumental for solid-state nonlinear optics and quantum simulations. To enable engineered polariton energy landscapes and interactions, local control over the…

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

Rotational excitation of polar molecules trapped in an optical lattice gives rise to rotational excitons. Here we show that non-linear interactions of such excitons can be controlled by an electric field. The exciton--exciton interactions…

Mesoscale and Nanoscale Physics · Physics 2012-06-20 Ping Xiang , Marina Litinskaya , Roman V. Krems

Transition-metal dichalcogenide bilayers exhibit a rich exciton landscape including layer-hybridized excitons, i.e. excitons which are of partly intra- and interlayer nature. In this work, we study hybrid exciton-exciton interactions in…

Mesoscale and Nanoscale Physics · Physics 2023-06-28 Daniel Erkensten , Samuel Brem , Raul Perea-Causin , Joakim Hagel , Fedele Tagarelli , Edoardo Lopriore , Andras Kis , Ermin Malic

We propose a new type of hybrid systems formed by conventional semiconductor nanostructures with the addition of remote insulating layers, where the electron-hole interaction is enhanced by combining quantum and dielectric confinement over…

Materials Science · Physics 2009-10-31 G. Goldoni , F. Rossi , E. Molinari

Exciton pulses transport excitation and entanglement adiabatically through Rydberg aggregates, assemblies of highly excited light atoms, which are set into directed motion by resonant dipole-dipole interaction. Here, we demonstrate the…

Atomic Physics · Physics 2014-12-04 K. Leonhardt , S. Wüster , J. M. Rost

Interlayer excitons, comprising an electron in one material bound by Coulomb attraction to a hole in an adjacent material, are composite bosons that can assume a variety of many-body phases. The phase diagram of the bosonic system is…

Mesoscale and Nanoscale Physics · Physics 2016-06-08 Brian Skinner

Interlayer excitons are bound states of electrons and holes confined in separate two-dimensional layers. Due to their repulsive dipolar interaction, interlayer excitons can form a correlated liquid. If another electron-hole bilayer is…

Mesoscale and Nanoscale Physics · Physics 2022-03-10 Chao Xu , Michael Fogler

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

The interaction potential of a two-dimensional system of excitons with spatially separated electron-hole layers is considered in the strong magnetic field limit. The excitons are assumed to have free dynamics in the $x$-$y$ plane, while…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 M. A. Olivares-Robles , S. E. Ulloa

Excitons are spin integer particles that are predicted to condense into a coherent quantum state at sufficiently low temperature, and exciton condensates can be realized at much higher temperature than condensates of atoms because of strong…

Various properties of interlayer excitons in double-layer transition metal dichalcogenides quantum dots are analyzed using a low-energy effective Hamiltonian with Coulomb interaction. We solve the single-particle Hamiltonian with and…

Mesoscale and Nanoscale Physics · Physics 2024-08-15 Xiang Liu , Zheng Tao , Wenchen Luo , Tapash Chakraborty
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