Characterizing the performance of heat rectifiers

Khandelwal, Shishir; Perarnau-Llobet, Martí; Seah, Stella; Brunner, Nicolás; Haack, Géraldine

doi:10.1103/physrevresearch.5.013129

Cited by 8 publications

(2 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, we would like to emphasize that a quantum heat rectifier should also be characterized by good heat conduction properties to constitute a useful device. Indeed, as recently discussed in [54], there typically exits a trade-off between heat rectification and heat conduction. Large rectification factors often occur at low maximum heat current through the device.…”

Section: Hybrid Ab Ring As Quantum Thermal Rectifiermentioning

confidence: 97%

Hybrid normal-superconducting Aharonov-Bohm quantum thermal device

Blasi

Giazotto²,

Haack

2022

Quantum Sci. Technol.

View full text Add to dashboard Cite

We propose and theoretically investigate the behavior of a ballistic Aharonov-Bohm (AB) ring when embedded in a N-S two-terminal setup, consisting of a normal metal (N) and superconducting (S) leads. This device is based on available current technologies and we show in this work that it constitutes a promising hybrid quantum thermal device, as a quantum heat engine and quantum thermal rectifier. Remarkably, we evidence the interplay of single-particle quantum interferences in the AB ring and of the superconducting properties of the structure to achieve the hybrid operating mode for this quantum device. Its efficiency as a quantum heat engine reaches 55% of the Carnot efficiency, and we predict a thermal rectification factor attaining 350%. These results make this device highly promising for future phase-coherent caloritronic nanodevices.

show abstract

Section: Hybrid Ab Ring As Quantum Thermal Rectifiermentioning

confidence: 97%

Hybrid normal-superconducting Aharonov-Bohm quantum thermal device

Blasi

Giazotto²,

Haack

2022

Quantum Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Here we illustrate that the three-terminal configuration effectively behaves as the diode. [39][40][41][42][43][44][45][46] Our system, renowned for its combined thermal and electrical transport capabilities, offers the potential for unconventional rectification effect. Notably, it can induce charge rectification owing to a temperature difference, in addition to the conventional charge rectification driven by voltage bias.…”

mentioning

confidence: 99%

Impact of Quantum Coherence on Inelastic Thermoelectric Devices: From Diode to Transistor

Cao 曹,

Han 韩,

Hao 郝

et al. 2024

Chinese Phys. Lett.

View full text Add to dashboard Cite

We present a study on inelastic thermoelectric devices, wherein charge currents and electronic and phononic heat currents are intricately interconnected. The employment of double quantum dots in conjunction with a phonon reservoir positions them as promising candidates for quantum thermoelectric diodes and transistors. Within this study, we illustrate that quantum coherence yields significant charge and Seebeck rectification effects. It’s worth noting that while the thermal transistor effect is observable in the linear response regime, especially when phonon-assisted inelastic processes dominate the transport, quantum coherence does not enhance thermal amplification. Our work may provide valuable insights for the optimization of inelastic thermoelectric devices.

show abstract

Enhanced thermal rectification in coupled qutrit–qubit quantum thermal diode

Rajapaksha,

Gunapala,

Premaratne

2024

APL Quantum

View full text Add to dashboard Cite

We present a quantum thermal diode model based on a coupled qutrit–qubit system designed to control heat flow between two thermal baths with unprecedented efficiency. This differs from previous models in terms of the asymmetry introduced by spin particles and their interaction. By exploiting the interactions between degenerate states within the coupled qutrit–qubit system, our model demonstrates diode-like behavior that is both robust and energy-efficient. Utilizing the frameworks of open quantum systems and the quantum Markovian master equation, with the Born and rotating wave approximations, we comprehensively analyze the system’s behavior. Numerical simulations reveal significant thermal rectification across a wide temperature range, positioning our model as a groundbreaking solution for nanoscale heat management. In addition, we employ state transition diagrams to elucidate the transition rate characteristics that underpin the diode behavior. Finally, we explore the potential for physical implementation using superconducting circuits, highlighting the practical relevance of our design.

show abstract

Characterizing the performance of heat rectifiers

Cited by 8 publications

References 72 publications

Hybrid normal-superconducting Aharonov-Bohm quantum thermal device

Hybrid normal-superconducting Aharonov-Bohm quantum thermal device

Impact of Quantum Coherence on Inelastic Thermoelectric Devices: From Diode to Transistor

Enhanced thermal rectification in coupled qutrit–qubit quantum thermal diode

Contact Info

Product

Resources

About