Recent breakthroughs in quantum-dot circuit-quantum-electrodynamics (circuit-QED) systems are important both from a fundamental perspective and the point of view quantum photonic devices. However, understanding applications such setups as potential thermoelectric diodes transistors has been missing. In this paper, via Keldysh nonequilibrium Green's function approach, we show that cavity-coupled double quantum-dots can serve excellent transistors. Using an enhanced perturbation approach based...

Including the phonon-assisted inelastic process in thermoelectric devices makes it possible to enhance performance of nonequilibrium work extraction. In this work, we demonstrate that phonon-thermoelectric have a fertile functionality diagram, where particle current and phononic heat currents are coupled fueled by chemical potential difference. Such can simultaneously perform multiple tasks, e.g., engines, refrigerators, pumps. Guided entropy production, mainly study efficiencies...

Graphene---hexagonal-boron-nitride---InSb near-field structures are designed and optimized to enhance the output power energy efficiency of thermophotovoltaic systems working in temperature range common industrial waste heat, $400~\rm K \sim 800~\rm K$, which is also for conventional thermoelectric devices. We show that optimal electric can reach $3.5\times10^{4} \rm\ W/\rm m^2$ system with a graphene---hexagonal-boron-nitride heterostructure emitter graphene-covered InSb cell, whereas best...

Twisted bilayer two-dimensional electronic systems give rise to many exotic phenomena and unveil a new frontier for the study of quantum materials. In photonics, twisted coupled via near-field interactions offer platform localization lasing. Here, we theoretically propose that twisting can be an unprecedented tool tune performance thermophotovoltaic systems. Remarkably, through twisting-induced photonic topological transitions, achieve significant tuning energy efficiency power. The...

In the past decade, a new research frontier emerges at interface between physics and renewable energy, termed as inelastic thermoelectric effects, where transport processes play key role. The study of effects broadens our understanding phenomena provides routes towards high-performance energy conversion. Here, we review main progress in this field, with particular focus on induced by electron-phonon electron–photon interactions. We introduce motivations, basic pictures, prototype models,...

Fluctuations are significant in mesoscopic systems and of particular importance understanding quantum transport. Here, we show that fluctuations can be considered as a resource for the operations open functional devices. We derive statistics thermal transistor amplification factor cooling-by-heating refrigerator efficiency under Gaussian fluctuation framework. Statistical properties stochastic revealed linear-response regime. clarify unique role inelastic processes on transport systems....

We establish a theory of optimal efficiency and power for three-terminal thermoelectric engines which have two independent output electric currents one input heat current. This set-up goes beyond the conventional with only For such set-up, we derive their trade-off without time-reversal symmetry. The formalism known systems or symmetry, showing interesting features that not been revealed before. A concrete example quantum-dot engine is studied to show current can much improved compared...

Abstract The three-terminal heat device that consists of an electronic cavity and couples to a bath is studied both as engine refrigerator. We investigate the characteristic performance in linear nonlinear regime for setups. It our focus here analyze how efficiency coefficient refrigerator are affected by transport. With such considerations, maximum power then optimized various energy levels, temperatures other parameters.

The energy efficiency and power of a quantum three-terminal thermoelectric device are studied by considering elastic tunneling through dot. Facilitated the geometry, can generate electrical powers in two channels simultaneously, even when only one heat current is exploited. these add up constructively or destructively, depending on their signs. constructive cooperation leads to enhanced for various quantum-dot energies, rates, etc. Moreover, this cooperative enhancement, dubbed as effect,...

Near-field thermophotovoltaic systems functioning at 400–900 K based on graphene-hexagonal-boron-nitride heterostructures and thin-film InSb p–n junctions are investigated theoretically. The performances of two near-field with different emitters examined carefully. One system consists a graphene-hexagonal-boron-nitride-graphene sandwiched structure as the emitter, while other has an emitter made double heterostructure. It is shown that both exhibit higher output power density energy...

We show that the Coulomb interaction between two circuits separated by an insulating layer leads to unconventional thermoelectric effects, such as cooling thermal current effect, transverse effect and Maxwell’s demon effect. The first refers in one circuit induced other circuit. middle represents electric power generation temperature gradient physical picture of drag is demonstrated for case with quantum dot each it then elaborated dots In latter case, heat exchange can vanish. Finally, we...

Tyre wet skid resistance greatly affects vehicle safety, and it is dependent on the frictional behaviour at tyre–road interface; however, currently available numerical models, using finite element method, either neglect road roughness or obtain rightness expensive computed tomography scans, rendering them inefficient complex. This study aims to present an estimation method of rubber slides a rough road, tyre resistance. A three-dimensional model was established, harmonic superposition...

The energy efficiency and power of a quantum thermoelectric system with multiple electric currents only one heat are studied. is connected to the hot bath terminal but cold terminals or vice versal. We find that cooperative effects can be potentially useful tool in improving output multi-terminal mesoscopic systems. As an example, we show cooperation between two three-terminal systems leads markedly improved performance engine within linear response regime using Landauer-B\"{u}tiker...

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 elastic (energy-conserving) inelastic (energy-nonconserving) transport through a cavity-coupled quantum dot under voltage biases wide spectrum of electron-electron electron-photon interactions. While significant charge Peltier effects found for strong light-matter interactions,...

Twisted bilayer two-dimensional electronic systems give rise to many exotic phenomena and unveil a new frontier for the study of quantum materials. In photonics, twisted coupled via near-field interactions offer platform localization lasing. Here, we propose that twisting can be an unprecedented tool tune performance thermophotovoltaic systems. Remarkably, through twisting-induced photonic topological transitions, achieve significant tuning energy efficiency power. The underlying mechanism...

Including phonon-assisted inelastic process in thermoelectric devices is able to enhance the performance of nonequilibrium work extraction. In this work, we demonstrate that phonon-thermoelectric have a fertile functionality diagram, where particle current and phononic heat currents are coupled fueled by chemical potential difference. Such can simultaneously perform multiple tasks, e.g., engines, refrigerators, pumps. Guided entropy production, mainly study efficiencies coefficients...

Near-field thermophotovoltaic systems functioning at 400$\sim$900~K based on graphene-hexagonal-boron-nitride heterostructures and thin-film InSb $p$-$n$ junctions are investigated theoretically. The performances of two near-field with different emitters examined carefully. One system consists a graphene-hexagonal-boron-nitride-graphene sandwich structure as the emitter, while other has an emitter made double heterostructure. It is shown that both exhibit higher output power density energy...