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Quantum systems as used for quantum computation or quantum sensing are nowadays often realized in solid state devices as e.g. complex Josephson circuits or coupled quantum-dot systems. Condensed matter as an environment influences heavily…

Mesoscale and Nanoscale Physics · Physics 2022-11-22 Olfa Dani , Robert Hussein , Johannes C. Bayer , Sigmund Kohler , Rolf J. Haug

We find an interference effect for electron-phonon interactions in coupled semiconductor quantum dots that can dominate the nonlinear transport properties even for temperatures close to zero. The intradot electron tunnel process leads to a…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Tobias Brandes , Bernhard Kramer

We study the electron-phonon interaction in the strongly correlated superconducting cuprates. Two types of the electron-phonon interactions are introduced in the $t-J$ model; the diagonal and off-diagonal interactions which modify the…

Strongly Correlated Electrons · Physics 2009-11-10 Sumio Ishihara , Naoto Nagaosa

In miniaturising electrical devices down to nanoscales, heat transfer has turned into a serious obstacle but also potential resource for future developments, both for conventional and quantum computing architectures. Controlling heat…

Mesoscale and Nanoscale Physics · Physics 2019-08-19 Jorden Senior , Azat Gubaydullin , Bayan Karimi , Joonas T. Peltonen , Joachim Ankerhold , Jukka P. Pekola

In this work we investigate temperature dependence of electronic structure of system with strong electronic correlations and strong electron-phonon interaction modeling cuprates in the frameworks of the three-band p-d-Holstein model by a…

Strongly Correlated Electrons · Physics 2018-01-03 Ilya A. Makarov , Sergey G. Ovchinnikov

Phase change thermal diodes (PCTD) suffer from fairly low thermal rectification ratio, which hampers their widespread utilization as thermal management and control units for cutting-edge technologies, encompassing photovoltaics,…

Applied Physics · Physics 2018-11-06 Zhaonan Meng , Raza Gulfam , Peng Zhang , Fei Ma

The influence of electron--phonon interactions on the dynamics of a quantum dot coupled to a photonic cavity mode is investigated using a nonequilibrium Green's function approach. Within a polaron frame, the self-consistent-Born…

Mesoscale and Nanoscale Physics · Physics 2017-01-11 Gaston Hornecker , Alexia Auffèves , Thomas Grange

We investigate the photon-mediated thermal transport between a superconducting electrode and a normal metal. When the quasiparticle contribution can be neglected, the photon-mediated channel becomes an efficient heat transport relaxation…

Mesoscale and Nanoscale Physics · Physics 2021-01-13 G. Marchegiani , A. Braggio , F. Giazotto

We study the nonequilibrium steady state of a mechanical resonator in the quantum regime realized by a suspended carbon nanotube quantum dot contacted by two ferromagnets. Because of the spin-orbit interaction and/or an external magnetic…

Mesoscale and Nanoscale Physics · Physics 2014-07-24 Pascal Stadler , Wolfgang Belzig , Gianluca Rastelli

This paper presents a conceptual design for quantum heat machines using a pair of coupled double quantum dots (DQDs), each DQD with an excess electron to interact, as an working substance. We define a compression ratio as the ratio between…

Quantum Physics · Physics 2021-08-04 Jefferson Luan D. de Oliveira , Moises Rojas , Cleverson Filgueiras

At low temperatures, the transport coefficients in the disordered electron gas acquire quantum corrections as a result of the complex interplay of disorder and interactions. The interaction corrections to the electric conductivity have…

Mesoscale and Nanoscale Physics · Physics 2024-11-05 Zahidul Islam Jitu , Georg Schwiete

We study the effect of phonons on a proposed scheme for the direct measurement of two-electron spin states in a double quantum dot by monitoring the the noise of the current flowing through a quantum point contact coupled to one of the…

Quantum Physics · Physics 2015-04-01 Katarzyna Roszak , Łukasz Marcinowski , Paweł Machnikowski

In the presence of Joule heating, the electronic temperature in a metallic resistor placed at sub-Kelvin temperatures can significantly exceed the phonon temperature. Electron cooling proceeds mainly through two processes: electronic…

Mesoscale and Nanoscale Physics · Physics 2009-08-26 B. Huard , H. Pothier , D. Esteve , K. E. Nagaev

A quantum thermal diode, similar to an electronic diode, allows for unidirectional heat transmission. In this paper, we study a quantum thermal diode composed of two two-level atoms coupled to auxiliary two-level atoms. We find that the…

Quantum Physics · Physics 2025-11-04 Qin Zhang , Zi-chen Zhang , Yi-jia Yang , Zheng Liu , Chang-shui Yu

Using the Feynman path-integral formalism we study the polaron effects in quantum wires above a liquid helium film. The electron interacts with two-dimensional (2D) surface phonons, i.e. ripplons, and is confined in one dimension (1D) by an…

Strongly Correlated Electrons · Physics 2009-11-07 G. A. Farias , R. N. Costa Filho , F. M. Peeters , Nelson Studart

We study the finite-temperature transport of electrons coupled to anharmonic local phonons. Our focus is on the high-temperature incoherent regime, where controlled calculations are possible both for weak and strong electron--phonon…

Strongly Correlated Electrons · Physics 2021-10-22 Attila Szabó , S. A. Parameswaran , Sarang Gopalakrishnan

In this work, we review and expand recent theoretical proposals for the realization of electronic thermal diodes based on tunnel-junctions of normal metal and superconducting thin films. Starting from the basic rectifying properties of a…

Superconductivity · Physics 2015-03-18 Antonio Fornieri , María José Martínez-Pérez , Francesco Giazotto

We investigate the non-classical states of light that emerge in a microwave resonator coupled to a periodically-driven electron in a nanowire double quantum dot (DQD). Under certain drive configurations, we find that the resonator…

Mesoscale and Nanoscale Physics · Physics 2016-10-12 M. J. Gullans , J. Stehlik , Y. -Y. Liu , C. Eichler , J. R. Petta , J. M. Taylor

We study thermoelectric transport through a serial double quantum dot (DQD) coupled to two metallic leads with different thermal energies. We take into account the electron sequential and cotunneling effects via different master equation…

Mesoscale and Nanoscale Physics · Physics 2022-05-31 Bashdar Rahman Pirot , Nzar Rauf Abdullah , Andrei Manolescu , Vidar Gudmundsson

We report the realization of an ultra-efficient low-temperature hybrid heat current rectifier, thermal counterpart of the well-known electric diode. Our design is based on a tunnel junction between two different elements: a normal metal and…

Mesoscale and Nanoscale Physics · Physics 2015-04-13 M. J. Martínez-Pérez , A. Fornieri , F. Giazotto
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