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A quantum thermal device based on three nearest-neighbor coupled spin-1/2 systems controlled by the magnetic field is proposed. We systematically study the steady-state thermal behaviors of the system. When the two terminals of our system…

Quantum Physics · Physics 2024-02-01 Yi-jia Yang , Yu-qiang Liu , Zheng Liu , Chang-shui Yu

We investigate thermally-driven transport of heat and charge in a superconducting single-electron transistor by means of a real-time diagrammatic transport theory. Our theoretical approach allows us to account for strong Coulomb…

Mesoscale and Nanoscale Physics · Physics 2021-12-01 Alexander G. Bauer , Björn Sothmann

Organic semiconductors show complex phenomena due to their high energetic disorder. A striking example is the possibility of an increased effective temperature T_eff of the charge carrier distribution relative to the lattice temperature,…

Disordered Systems and Neural Networks · Physics 2025-08-08 Anton Kompatscher , Martijn Kemerink

Triboelectric nanogenerator (TENG), a class of mechanical to electrical energy transducers, has emerged as a promising solution to self-power Internet of Things (IoT) sensors, wearable electronics, etc. The use of synchronous switched…

Applied Physics · Physics 2021-05-26 Madhav Pathak , Ratnesh Kumar

Hot carrier solar cells (HCSCs), harvesting excess energy of the hot carriers generated by above-band-gap photoexcitation, is crucial for pushing the solar cell efficiency beyond the Shockley Queisser limit, which is challenging to realize…

Mesoscale and Nanoscale Physics · Physics 2025-04-09 Chenran Xu , Chen Xu , Jichen Zhou , Zhexu Shan , Wenjian Su , Wenbing Li , Xingqi Xu , Kenji Watanabe , Takashi Taniguchi , Shiyao Zhu , Da-Wei Wang , Yanhao Tang

Modern technologies could soon make it possible to investigate the operation cycles of quantum heat engines by counting the photons that are emitted and absorbed by their working systems. Using the quantum jump approach to open-system…

Statistical Mechanics · Physics 2020-09-29 Paul Menczel , Christian Flindt , Kay Brandner

We explore heat transfer in molecular junctions between two leads in the absence of a finite net thermal bias. The application of an unbiased, time-periodic temperature modulation of the leads entails a dynamical breaking of reflection…

Mesoscale and Nanoscale Physics · Physics 2009-12-18 Fei Zhan , Nianbei Li , Sigmund Kohler , Peter Hänggi

The interplay of charge, spin and heat transport is investigated in the fascinating research field of spin caloritronics, the marriage of spintronics and thermoelectrics. Here, many new spin-dependent thermal transport phenomena in magnetic…

We study geometric energy transport in a slowly driven single-level quantum dot weakly coupled to electronic contacts and with strong onsite interaction, which can be either repulsive or attractive. Exploiting a recently discovered…

Mesoscale and Nanoscale Physics · Physics 2022-07-07 Juliette Monsel , Jens Schulenborg , Thibault Baquet , Janine Splettstoesser

We investigate a mechanism for extracting heat from metallic conductors based on the energy-selective transmission of electrons through a spatially asymmetric resonant structure subject to ac driving. This quantum refrigerator can operate…

Mesoscale and Nanoscale Physics · Physics 2007-09-06 Miguel Rey , Michael Strass , Sigmund Kohler , Peter Hänggi , Fernando Sols

The nonlinear thermoelectric properties of serially coupled quantum dots (SCQDs) embedded in a nanowire connected to metallic electrodes are theoretically studied in the Coulomb blockade regime. We demonstrate that the electron heat current…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 Yen-Chun Tseng , David M T Kuo , Yia-chung Chang , Yan-Ting Lin

We propose a model describing Seebeck effect on a weak link between two quantum systems with fine-tunable ground states of Fermi and Non-Fermi liquid origin. The experimental realization of the model can be achieved by utilizing the quantum…

Mesoscale and Nanoscale Physics · Physics 2018-02-06 T. K. T. Nguyen , M. N. Kiselev

We consider transport properties of a two dimensional topological insulator in a double quantum point contact geometry in presence of a time-dependent external field. In the proposed setup an external gate is placed above a single…

Mesoscale and Nanoscale Physics · Physics 2017-03-15 F. Ronetti , M. Carrega , D. Ferraro , J. Rech , T. Jonckheere , T. Martin , M. Sassetti

A quantum thermal transistor is designed by the strong coupling between one qubit and one qutrit which are in contact with three heat baths with different temperatures. The thermal behavior is analyzed based on the master equation by both…

Quantum Physics · Physics 2019-03-12 Bao-qing Guo , Tong Liu , Chang-shui Yu

Quantum dots (QDs) are good model systems for fundamental studies of mesoscopic transport phenomena using thermoelectric effects because of their small size, electrostatically tunable properties and thermoelectric response characteristics…

Mesoscale and Nanoscale Physics · Physics 2016-11-16 Artis Svilans , Martin Leijnse , Heiner Linke

Quantum thermal transistor is a microscopic thermodynamical device that can modulate and amplify heat current through two terminals by the weak heat current at the third terminal. Here we study the common environmental effects on a quantum…

Quantum Physics · Physics 2022-01-04 Yu-qiang Liu , Deng-hui Yu , Chang-shui Yu

Using the tools of random matrix theory we develop a statistical analysis of the transport properties of thermoelectric low-dimensional systems made of two electron reservoirs set at different temperatures and chemical potentials, and…

Mesoscale and Nanoscale Physics · Physics 2016-08-23 Adel Abbout , Henni Ouerdane , Christophe Goupil

Reservoir engineering is a powerful tool for the robust generation of quantum states or transport properties. Using both a weak-coupling quantum master equation and the exact solution, we show that directional transport of electrons through…

Mesoscale and Nanoscale Physics · Physics 2018-05-02 Daniel Malz , Andreas Nunnenkamp

We investigate the local thermal transport in a quantum trimer of harmonic oscillators connected to two thermal baths. The coupling between them are augmented by complex phases which leads to the quantum control of the local atypical heat…

Quantum Physics · Physics 2024-10-23 Gobinda Chakraborty , Subhadeep Chakraborty , Tanmoy Basu , Manas Mukherjee

Employing universal relations for the Onsager coefficients in the linear regime at the symmetric point of the single impurity Anderson model, we calculate the conditions under which the quantum scattering phase shift should satisfy to…

Mesoscale and Nanoscale Physics · Physics 2024-05-03 R. S. Cortes-Santamaria , J. A. Landazabal-Rodríguez , J. Silva-Valencia , E. Ramos , M. S. Figueira , R. Franco