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  Interacting adiabatic quantum motor

Bruch, A., Viola-Kusminskiy, S., Refael, G., & von Oppen, F. (2018). Interacting adiabatic quantum motor. PHYSICAL REVIEW B, 97(19): 195411. doi:10.1103/PhysRevB.97.195411.

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1712.04952.pdf (Any fulltext), 485KB
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Bruch, Anton1, Author
Viola-Kusminskiy, Silvia2, Author              
Refael, Gil3, Author
von Oppen, Felix1, Author
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1Freie Universität Berlin, External Organizations, Berlin, Germany, ou_131875              
2Viola-Kusminskiy Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society, ou_2541695              
3Institute for Quantum Information and Matter, Caltech, Pasadena, CA 91125, USA, ou_persistent22              

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 Abstract: We present a field theoretic treatment of an adiabatic quantum motor. We explicitly discuss a motor termed Thouless motor which is based on a Thouless pump operating in reverse. When a sliding periodic potential is considered as the motor degree of freedom, a bias voltage applied to the electron channel sets the motor in motion. We investigate a Thouless motor whose electron channel is modeled as a Luttinger liquid. Interactions increase the gap opened by the periodic potential. For an infinite Luttinger liquid the coupling induced friction is enhanced by electron-electron interactions. When the LL is ultimately coupled to Fermi liquid reservoirs, the dissipation reduces to its value for a noninteracting electron system for a constant motor velocity. Our results can also be applied to a motor based on a nanomagnet coupled to a quantum spin Hall edge.

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Language(s): eng - English
 Dates: 2018-05-09
 Publication Status: Published in print
 Pages: 13
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 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 1712.04952v1
DOI: 10.1103/PhysRevB.97.195411
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Title: PHYSICAL REVIEW B
Source Genre: Journal
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Publ. Info: American Physical Society
Pages: - Volume / Issue: 97 (19) Sequence Number: 195411 Start / End Page: - Identifier: ISSN: 2469-9950