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Ground state cooling of nanomechanical resonators by electron transport

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2019

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https://doi.org/10.1140/epjst/e2018-800065-2
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The European Physical Journal : Special Topics. 2019, 227(15-16), pp. 1885-1895. ISSN 1951-6355. eISSN 1951-6401. Available under: doi: 10.1140/epjst/e2018-800065-2

Zusammenfassung

We discuss two theoretical proposals for controlling the nonequilibrium steady state of nanomechanical resonators using quantum electronic transport. Specifically, we analyse two approaches to achieve the ground-state cooling of the mechanical vibration coupled to a quantum dot embedded between (i) spin-polarised contacts or (ii) a normal metal and a superconducting contact. Assuming a suitable coupling between the vibrational modes and the charge or spin of the electrons in the quantum dot, we show that ground-state cooling of the mechanical oscillator is within the state of the art for suspended carbon nanotube quantum dots operating as electromechanical devices.

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ISO 690RASTELLI, Gianluca, Wolfgang BELZIG, 2019. Ground state cooling of nanomechanical resonators by electron transport. In: The European Physical Journal : Special Topics. 2019, 227(15-16), pp. 1885-1895. ISSN 1951-6355. eISSN 1951-6401. Available under: doi: 10.1140/epjst/e2018-800065-2
BibTex
@article{Rastelli2019-03Groun-44675,
  year={2019},
  doi={10.1140/epjst/e2018-800065-2},
  title={Ground state cooling of nanomechanical resonators by electron transport},
  number={15-16},
  volume={227},
  issn={1951-6355},
  journal={The European Physical Journal :  Special Topics},
  pages={1885--1895},
  author={Rastelli, Gianluca and Belzig, Wolfgang}
}
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