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Entropy
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Energy, Entropy, and Information in Nano- and Quantum-Electronics
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Energy, Entropy, and Information in Nano- and Quantum-Electronics

A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Statistical Physics".

Deadline for manuscript submissions: closed (25 August 2021) | Viewed by 10341

Special Issue Editor

Dr. Patrick P. Potts

E-Mail Website
Guest Editor
Division of Mathematical Physics, Lund University, Lund, Sweden
Interests: quantum thermodynamics; fluctuations and quantum measurements; single-electron sources

Special Issue Information

Dear Colleagues,

The fields of stochastic and quantum thermodynamics generalize the theory of thermodynamics to a regime where fluctuations and measurements play a fundamental role. Powerful results have been established in these fields, including fluctuation theorems and thermodynamic uncertainty relations. Furthermore, the connection between information and entropy becomes particularly relevant on the nanoscale. This has resulted in a number of insights based on realizations of established thought experiments, such as Maxwell’s demon and Szilard’s engine.

Due to their high degree of control, small electronic systems provide ideal candidates to investigate thermodynamics on the nanoscale. In particular, all ingredients required to investigate heat and energy transport, as well as the thermodynamics of information, are available. This Special Issue aims at providing a focus on modern developments in these highly exciting topics related to energy, entropy, and information in nano- and quantum-electronics.

Dr. Patrick P. Potts
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Entropy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Quantum thermodynamics
  • Stochastic thermodynamics
  • Thermodynamics of information
  • Quantum electronics
  • Quantum transport
  • Heat transport
  • Fluctuation theorems
  • Thermodynamic uncertainty relations
  • Maxwell’s demon

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

27 pages, 733 KiB  
Article
Auto- versus Cross-Correlation Noise in Periodically Driven Quantum Coherent Conductors
by Michael Moskalets
Entropy 2021, 23(4), 393; https://doi.org/10.3390/e23040393 - 25 Mar 2021
Cited by 2 | Viewed by 2491
Abstract
Expressing currents and their fluctuations at the terminals of a multi-probe conductor in terms of the wave functions of carriers injected into the Fermi sea provides new insight into the physics of electric currents. This approach helps us to identify two physically different [...] Read more.
Expressing currents and their fluctuations at the terminals of a multi-probe conductor in terms of the wave functions of carriers injected into the Fermi sea provides new insight into the physics of electric currents. This approach helps us to identify two physically different contributions to shot noise. In the quantum coherent regime, when current is carried by non-overlapping wave packets, the product of current fluctuations in different leads, the cross-correlation noise, is determined solely by the duration of the wave packet. In contrast, the square of the current fluctuations in one lead, the autocorrelation noise, is additionally determined by the coherence of the wave packet, which is associated with the spread of the wave packet in energy. The two contributions can be addressed separately in the weak back-scattering regime, when the autocorrelation noise depends only on the coherence. Analysis of shot noise in terms of these contributions allows us, in particular, to predict that no individual traveling particles with a real wave function, such as Majorana fermions, can be created in the Fermi sea in a clean manner, that is, without accompanying electron–hole pairs. Full article
(This article belongs to the Special Issue Energy, Entropy, and Information in Nano- and Quantum-Electronics)
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30 pages, 583 KiB  
Article
Thermodynamics of the Coarse-Graining Master Equation
by Gernot Schaller and Julian Ablaßmayer
Entropy 2020, 22(5), 525; https://doi.org/10.3390/e22050525 - 5 May 2020
Cited by 5 | Viewed by 3836
Abstract
We study the coarse-graining approach to derive a generator for the evolution of an open quantum system over a finite time interval. The approach does not require a secular approximation but nevertheless generally leads to a Lindblad–Gorini–Kossakowski–Sudarshan generator. By combining the formalism with [...] Read more.
We study the coarse-graining approach to derive a generator for the evolution of an open quantum system over a finite time interval. The approach does not require a secular approximation but nevertheless generally leads to a Lindblad–Gorini–Kossakowski–Sudarshan generator. By combining the formalism with full counting statistics, we can demonstrate a consistent thermodynamic framework, once the switching work required for the coupling and decoupling with the reservoir is included. Particularly, we can write the second law in standard form, with the only difference that heat currents must be defined with respect to the reservoir. We exemplify our findings with simple but pedagogical examples. Full article
(This article belongs to the Special Issue Energy, Entropy, and Information in Nano- and Quantum-Electronics)
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21 pages, 11724 KiB  
Article
Entropy Analysis in Double-Diffusive Convection in Nanofluids through Electro-Osmotically Induced Peristaltic Microchannel
by Saima Noreen, Sadia Waheed, Abid Hussanan and Dianchen Lu
Entropy 2019, 21(10), 986; https://doi.org/10.3390/e21100986 - 10 Oct 2019
Cited by 15 | Viewed by 3149
Abstract
A theoretical study is presented to examine entropy generation in double-diffusive convection in an Electro-osmotic flow (EOF) of nanofluids via a peristaltic microchannel. Buoyancy effects due to change in temperature, solute concentration and nanoparticle volume fraction are also considered. This study was performed [...] Read more.
A theoretical study is presented to examine entropy generation in double-diffusive convection in an Electro-osmotic flow (EOF) of nanofluids via a peristaltic microchannel. Buoyancy effects due to change in temperature, solute concentration and nanoparticle volume fraction are also considered. This study was performed under lubrication and Debye-Hückel linearization approximation. The governing equations are solved exactly. The effect of dominant hydrodynamic parameters (thermophoresis, Brownian motion, Soret and Dufour), Grashof numbers (thermal, concentration and nanoparticle) and electro-osmotic parameters on double-diffusive convective flow are discussed. Moreover, trapping, pumping, entropy generation number, Bejan number and heat transfer rate were also examined under the influence of pertinent parameters such as the thermophoresis parameter, the Brownian motion parameter, the Soret parameter, the Dufour parameter, the thermal Grashof number, the solutal Grashof number, the nanoparticle Grashof number, the electro-osmotic parameter and Helmholtz–Smoluchowski velocity. The electro-osmotic parameter powerfully affected the velocity profile. The magnitude of total entropy generation increased as the thermophoresis parameter and Brownian motion parameter increased. Soret and the Dufour parameter had a strong tendency to control the temperature profile and Bejan number. The findings of the present analysis can be used in clinical purposes such as cell therapy, drug delivery systems, pharmaco-dynamic pumps and particles filtration. Full article
(This article belongs to the Special Issue Energy, Entropy, and Information in Nano- and Quantum-Electronics)
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