Inelastic thermoelectric transport and fluctuations in mesoscopic systems

Wang, Rongqian; Wang, Chen; Lu, Jincheng; Jiang, Jian‐Hua

doi:10.1080/23746149.2022.2082317

Cited by 14 publications

(12 citation statements)

References 232 publications

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“…66 The X2CAMF Hartree-Fock (HF) calculations are performed through the socutils code by one of the authors. 67 The SHCI calculations are performed using the ZSHCI module of the Dice code by the authors. 68 The input and output for all calculations can be accessed from a public repository.…”

Section: Computational Detailsmentioning

confidence: 99%

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Relativistic Semistochastic Heat-Bath Configuration Interaction

Wang

Sharma

2023

J. Chem. Theory Comput.

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In this work we present the extension of semistochastic heat-bath configuration interaction (SHCI) to work with any two-component and four-component Hamiltonian. The vertical detachment energy (VDE) of AuH2 – and zero-field splitting (ZFS) of NpO2 2+ is calculated by correlating more than 100 spinors in both cases. This work demonstrates the capability of SHCI to treat problems where both relativistic effect and electron correlation are important.

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Section: Computational Detailsmentioning

confidence: 99%

“…68 The input and output for all calculations can be accessed from a public repository. 69 All the SHCI calculations use 2 value of 10 −10 a.u. and the stochastic errors are converged to 5 × 10 −6 a.u.…”

Section: Computational Detailsmentioning

confidence: 99%

Relativistic Semistochastic Heat-Bath Configuration Interaction

Wang

Sharma

2023

J. Chem. Theory Comput.

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“…In recent years, there has been a lot of progress in probing and controlling hybrid quantum systems, which sit at the intersection of mesoscopic physics and quantum optics [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. Some examples of such hybrid light–matter systems include circuit-quantum-electrodynamics (c-QED) systems [ 8 , 9 , 10 , 11 , 12 , 13 , 14 ] and quantum-dot (QD) c-QED systems [ 15 , 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

“…One interesting kind of setup is quantum dots at a finite voltage bias, which has been integrated with superconducting microwave resonators, accomplishing sufficiently strong light–matter coupling [ 19 , 20 , 21 , 22 ]. Such QD cQED systems offer a rich platform for studying quantum transport [ 7 ] and nonequilibrium thermodynamics [ 3 ]. Experiments are versatile, tunable (with a broad range of parameters), and scalable.…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric Rectification and Amplification in Interacting Quantum-Dot Circuit-Quantum-Electrodynamics Systems

Wang

et al. 2023

Entropy

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Thermoelectric rectification and amplification were investigated in an interacting quantum-dot circuit-quantum-electrodynamics system. By applying the Keldysh nonequilibrium Green’s function approach, we studied the elastic (energy-conserving) and inelastic (energy-nonconserving) transport through a cavity-coupled quantum dot under the voltage biases in a wide spectrum of electron–electron and electron–photon interactions. While significant charge and Peltier rectification effects were found for strong light–matter interactions, the dependence on electron–electron interaction could be nonmonotonic and dramatic. Electron–electron interaction-enhanced transport was found under certain resonance conditions. These nontrivial interaction effects were found in both linear and nonlinear transport regimes, which manifested in charge and thermal currents, rectification effects, and the linear thermal transistor effect.

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“…The study of thermoelectric transport at the nanoscale is of significant importance for its potential applications in quantum technology and quantum engineering [1][2][3][4][5]. Much effort has been made to achieve high efficiency and coefficient of performance in thermoelectric nanodevices in both theory [6][7][8][9] and experiment [10,11], which mainly focus on the elastic transport processes [12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Multitask quantum thermal machines and cooperative effects

Lu¹,

Wang²,

Wang³

et al. 2022

Preprint

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The performance of nonequilibrium work extraction in thermoelectric devices can be enhanced by introducing the phonon-assisted inelastic process. Herein, we study phonon-thermoelectric devices where particle current and phononic heat currents are coupled by dominating phonon-assisted inelastic process and fueled by chemical potential difference and temperature biases and show that inelastic thermoelectric setups have a much richer functionality diagram and can even simultaneously perform multiple tasks, such as heat engines, refrigerators, and heat pumps. From the viewpoint of entropy production, we study the efficiencies and coefficients of performance of multi-task quantum thermal machines by analyzing two typical thermoelectric devices and emphasize the role of the inelastic scattering process and multiple biases in multiterminal setups. In a three-terminal double-quantum-dot setup with a tunable gate, we show that it performs two useful tasks due to the phonon-assisted inelastic process dominating the transport. For four-terminal four-quantum-dot thermoelectric device, we demonstrate that additional thermodynamic affinity furnishes the system with both substantially enriched functionality diagrams and enhanced efficiency. The cooperation between the longitudinal and transverse thermoelectric effects in the three-terminal thermoelectric systems leads to markedly improved performance of the thermal machines. Our work provides insights into optimizing general thermoelectric devices.

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Inelastic thermoelectric transport and fluctuations in mesoscopic systems

Cited by 14 publications

References 232 publications

Relativistic Semistochastic Heat-Bath Configuration Interaction

Relativistic Semistochastic Heat-Bath Configuration Interaction

Thermoelectric Rectification and Amplification in Interacting Quantum-Dot Circuit-Quantum-Electrodynamics Systems

Multitask quantum thermal machines and cooperative effects

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