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Exciton many-body interaction bear great implication for application in advanced photonic devices and quantum science and technology such as quantum computing, but the fundamental understanding about exciton many-body interaction is very…

材料科学 · 物理学 2020-09-17 Yiling Yu , Guoqing Li , Linyou Cao

We consider simulating quantum systems on digital quantum computers. We show that the performance of quantum simulation can be improved by simultaneously exploiting commutativity of the target Hamiltonian, sparsity of interactions, and…

量子物理 · 物理学 2021-07-06 Yuan Su , Hsin-Yuan Huang , Earl T. Campbell

We propose a method for calculating exciton spectra and wavefunctions for model lattice Hamiltonians, based on real-space electron-hole propagators. We verify that our results agree with those of the continuum approximation in the limit of…

强关联电子 · 物理学 2026-03-19 Man-Yat Chu , Mona Berciu

We use the composite boson (coboson) many-body formalism to tackle scattering lengths for cold fermionic atoms. We show that bound dimers can be taken as elementary entities provided that fermion exchanges between them are treated exactly,…

量子气体 · 物理学 2018-12-11 Shiue-Yuan Shiau , Ching-Hang Chien , Yia-Chung Chang , Monique Combescot

The low-energy excitations of filled Landau levels (LL's) of electrons involve promotion of a single electron from the topmost filled LL to the lowest empty LL. These are called excitons or collective modes. The incompressible fractional…

凝聚态物理 · 物理学 2009-10-28 R. K. Kamilla , X. G. Wu , J. K. Jain

An interplay of the Kondo scattering and exciton effects (d-f Coulomb interaction) in the intermediate valence systems and Kondo lattices is demonstrated to lead to an essential change of the scaling behavior in comparison with the standard…

强关联电子 · 物理学 2009-11-10 V. Yu. Irkhin , M. I. Katsnelson

We present a theoretical analysis of exciton transfer and decoherence effects in a photosynthetic dimer interacting with collective (correlated) and local (uncorrelated) protein-solvent environments. Our approach is based on the framework…

量子物理 · 物理学 2015-12-31 M. Merkli , G. P. Berman , R. T. Sayre , S. Gnanakaran , M. Könenberg , A. I. Nesterov , H. Song

The non-perturbative effect of interaction can sometimes make interacting bosons behave as though they were free fermions. The system of neutral bosons in a rapidly rotating atomic trap is equivalent to charged bosons coupled to a magnetic…

介观与纳米尺度物理 · 物理学 2018-09-25 Chia-Chen Chang , Nicolas Regnault , Thierry Jolicoeur , Jainendra K. Jain

A theory of anyon excitons consisting of a valence hole and three quasielectrons with electric charges $(-e/3)$ is presented. A full symmetry classification of the $k=0$ states is given, where $k$ is the exciton momentum. The energy levels…

凝聚态物理 · 物理学 2016-08-08 M. E. Portnoi , E. I. Rashba

The exact solutions of a one-dimensional mixture of spinor bosons and spinor fermions with $\delta$-function interactions are studied. Some new sets of Bethe ansatz equations are obtained by using the graded nest quantum inverse scattering…

强关联电子 · 物理学 2015-05-13 Shi-Jian Gu , Junpeng Cao , Shu Chen , Hai-Qing Lin

Between many prominent contributions of Markus Buttiker to mesoscopic physics, the scattering theory approach to the electron transport and noise stands out for its elegance, simplicity, universality, and popularity between theorists…

介观与纳米尺度物理 · 物理学 2016-01-20 Eugene V. Sukhorukov

Excitons, Coulomb bound electron-hole pairs, are composite bosons and their interactions in traditional semiconductors lead to condensation and light amplification. The much stronger Coulomb interaction in transition metal dichalcogenides…

介观与纳米尺度物理 · 物理学 2017-04-05 M. Manca , M. M. Glazov , C. Robert , F. Cadiz , T. Taniguchi , K. Watanabe , E. Courtade , T. Amand , P. Renucci , X. Marie , G. Wang , B. Urbaszek

Electrons and holes residing on the opposing sides of an insulating barrier and experiencing an attractive Coulomb interaction can spontaneously form a coherent state known as an indirect exciton condensate. We study a trilayer system where…

介观与纳米尺度物理 · 物理学 2019-10-21 Øyvind Johansen , Akashdeep Kamra , Camilo Ulloa , Arne Brataas , Rembert A. Duine

We develop a microscopic description of an electron-doped two-dimensional semiconductor embedded in a microcavity. Specifically, we investigate the interactions between exciton-polaritons and electrons for the case where the interactions…

介观与纳米尺度物理 · 物理学 2021-05-19 Guangyao Li , Olivier Bleu , Jesper Levinsen , Meera M. Parish

Based on the operatorial formulation of the perturbation theory, the exciton-phonon problem is revisited for investigating exciton-mediated energy flow in a finite-size lattice. Within this method, the exciton-phonon entanglement is taken…

化学物理 · 物理学 2015-06-12 Vincent J. C. Pouthier

We develop a quantum scattering model to describe the exciton transport through the Fenna-Matthews-Olson(FMO) complex. It is found that the exciton transport involved the optimal quantum coherence is more efficient than that involved…

生物大分子 · 定量生物学 2016-12-28 Bao-quan Ai , Shi-liang Zhu

The effects associated with exciton Bose condensate formation in strongly correlated spin crossover systems are considered within the effective Hamiltonian obtained from the two-orbital Hubbard-Kanamori model. The collective excitations…

强关联电子 · 物理学 2022-12-13 Yuri. S. Orlov , Sergey. V. Nikolaev

We present a fully three-dimensional study of the multiexciton optical response of vertically coupled GaN-based quantum dots via a direct-diagonalization approach. The proposed analysis is crucial in understanding the fundamental properties…

材料科学 · 物理学 2009-11-07 Sergio De Rinaldis , Irene D'Amico , Fausto Rossi

The region surrounding the excitonic insulator phase is a three-component plasma composed of electrons, holes, and excitons. Due to the extended nature of the excitons, their presence influences the surrounding electrons and holes. We…

强关联电子 · 物理学 2015-06-22 B Zenker , D Ihle , F X Bronold , H Fehske

We discuss coherent exciton-polariton states in long molecular chains that are formed due to the interaction of molecular excitations with both vacuum photons and surface excitations of the neighboring reflecting substrate. The resonance…

其他凝聚态物理 · 物理学 2009-11-13 Yu. N. Gartstein , V. M. Agranovich