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Electron switching in waveguides coupled to a photon cavity is found to be strongly influenced by the photon energy and polarization. Therefore, the charge dynamics in the system is investigated in two different regimes, for off- and…

Mesoscale and Nanoscale Physics · Physics 2016-07-18 Nzar Rauf Abdullah , Chi-Shung Tang , Andrei Manolescu , Vidar Gudmundsson

Embedding quantum dot circuits into microwave cavities has emerged as a novel platform for controlling photon emission statistics by electrical means. With such a circuit version of the Rabi model, we reveal previously undefined quantum…

Mesoscale and Nanoscale Physics · Physics 2025-04-14 Lei-Lei Nian , Yi-Cheng Wang , Jin-Yi Wang , Long Xiong , Bo Zheng , Jing-Tao Lü

We investigate magnetic-field influenced time-dependent transport of Coulomb interacting electrons through a two-dimensional quantum ring in an electromagnetic cavity under non-equilibrium conditions described by a time-convolutionless…

Mesoscale and Nanoscale Physics · Physics 2013-07-02 Thorsten Arnold , Chi-Shung Tang , Andrei Manolescu , Vidar Gudmundsson

We propose a method to cool a thermal photonic state in a cavity by passing electrons through it. Electrons are coherently split into two paths, with one path traversing the cavity, becoming entangled with its photonic state. A sequence of…

Quantum Physics · Physics 2026-01-30 D. E. Maison , L. Stettiner , S. Even-Haim , A. Gorlach , I. Kaminer

The goal of this work is to show how the thermospin polarization current in a quantum ring changes in the presence of Rashba spin-orbit coupling and a quantized single photon mode of a cavity the ring is placed in. Employing the reduced…

Mesoscale and Nanoscale Physics · Physics 2018-04-10 Nzar Rauf Abdullah , Thorsten Arnold , Chi-Shung Tang , Andrei Manolescu , Vidar Gudmundsson

The interaction between molecular (atomic) electron(s) and the vacuum field of a reflective cavity generates a significant interest thanks to the rapid developments in nanophotonics. Such interaction which lies within the realm of cavity…

Chemical Physics · Physics 2019-05-22 Alexander Semenov , Abraham Nitzan

Electron transport in a new low-dimensional structure - the nuclear spin polarization induced quantum wire (NSPI QW) is theoretically studied. In the proposed system the local nuclear spin polarization creates the effective hyperfine field…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Yu. V. Pershin , S. N. Shevchenko , I. D. Vagner , P. Wyder

Photocurrent generation is studied in a system composed of a quantum wire with side-coupled quantum rings. The current generation results from the interplay of the particular geometry of the system and the use of circularly polarized…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Yuriy V. Pershin , Carlo Piermarocchi

We study thermal transport in a one-dimensional quantum wire, connected to reservoirs. Despite of the absence of electron backscattering, interactions in the wire strongly influence thermal transport. Electrons propagate with unitary…

Mesoscale and Nanoscale Physics · Physics 2019-08-17 Rosario Fazio , F. W. J. Hekking , D. E. Khmelnitskii

The coherent energy transfer between a quantum charger and a quantum battery is analyzed. In particular, we study how to improve the direct energy transfer by adding a photonic cavity as a mediator. We show that the additional degree of…

Quantum Physics · Physics 2023-07-06 Alba Crescente

We study a single-mode cavity weakly coupled to a voltage-biased quantum point contact. In a perturbative analysis, the lowest order predicts a thermal state for the cavity photons, driven by the emission noise of the conductor. The cavity…

Mesoscale and Nanoscale Physics · Physics 2016-07-05 Udson C. Mendes , Christophe Mora

Precisely controlling heat transfer in a quantum mechanical system is particularly significant for designing quantum thermodynamical devices. With the technology of experiment advances, circuit quantum electrodynamics (circuit QED) has…

Quantum Physics · Physics 2023-09-21 Yu-qiang Liu , Yi-jia Yang , Chang-shui Yu

We explore theoretically how the coupling to cavity vacuum fields affects the electron transport in quantum conductors due to the counter-rotating-wave terms of light-matter interaction. We determine the quantum conductance in terms of the…

Mesoscale and Nanoscale Physics · Physics 2023-01-31 Geva Arwas , Cristiano Ciuti

We consider resonant transmission through a finite-length quantum wire connected to leads via finite transparency junctions. The coherent electron transport is strongly modified by the Coulomb interaction. The low-temperature…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 N. B. Kopnin , Y. M. Galperin , V. M. Vinokur

We theoretically investigate the characteristics of the electron transport through a two-dimensionala quantum dot system in the $xy$-plane coupled to a photon cavity and a photon reservoir, the environment. The electron-photon coupling,…

Mesoscale and Nanoscale Physics · Physics 2020-02-27 Nzar Rauf Abdullah , Chi-Shung Tang , Andrei Manolescu , Vidar Gudmundsson

We model theoretically the time-dependent transport through an asymmetric double quantum dot etched in a two-dimensional wire embedded in a FIR photon cavity. For the transient and the intermediate time regimes the currents and the average…

Mesoscale and Nanoscale Physics · Physics 2019-03-15 Vidar Gudmundsson , Hallmann Gestsson , Nzar Rauf Abdullah , Chi-Shung Tang , Andrei Manolescu , Valeriu Moldoveanu

We consider the single photon transistor in coupled cavity system of resonators interacting with multilevel superconducting artificial atom simultaneously. Effective single mode transformation is used for the diagonalization of the the…

Quantum Physics · Physics 2018-04-04 Yusuf Gul

We explore the influence of a circularly polarized cavity photon field on the transport properties of a finite-width ring, in which the electrons are subject to spin-orbit and Coulomb interaction. The quantum ring is embedded in an…

Mesoscale and Nanoscale Physics · Physics 2014-03-21 Thorsten Arnold , Chi-Shung Tang , Andrei Manolescu , Vidar Gudmundsson

We consider an atom inside a ring cavity, where a plane-wave cavity field together with an external coherent laser beam induces a two-photon Raman transition between two hyperfine ground states of the atom. This cavity-assisted Raman…

Quantum Gases · Physics 2015-05-28 Lin Dong , Chuanzhou Zhu , Han Pu

The electron-photon interaction in 2D materials obeys the rule of electron valley-photon polarization correspondence. At the quantum level, such correspondence can be utilized to entangle valleys and polarizations and attain the transfer of…

Quantum Physics · Physics 2018-06-25 Ming-Jay Yang , Han-Ying Peng , Neil Na , Yu-Shu Wu