Thermal and quantum decay of supercurrent in highly transparent weak links

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Thermal and quantum decay of supercurrent in highly transparent weak links. / Galaktionov, Artem V.; Golubev, Dmitry S.; Zaikin, Andrei D.

In: EUROPEAN PHYSICAL JOURNAL: SPECIAL TOPICS, Vol. 227, No. 15-16, 01.03.2019, p. 2001-2012.

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Galaktionov, Artem V. ; Golubev, Dmitry S. ; Zaikin, Andrei D. / Thermal and quantum decay of supercurrent in highly transparent weak links. In: EUROPEAN PHYSICAL JOURNAL: SPECIAL TOPICS. 2019 ; Vol. 227, No. 15-16. pp. 2001-2012.

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@article{917eca97b77c48e98230c490f18f5661,
title = "Thermal and quantum decay of supercurrent in highly transparent weak links",
abstract = "We analyze a trade-off between thermal activation (TA) and quantum tunneling in the problem of supercurrent decay in superconducting junctions with highly transparent barriers. In such systems – unlike in conventional tunnel junctions – the supercurrent decay is essentially influenced by low energy Andreev levels forming an intrinsic quantum dissipative environment for the Josephson particle. We evaluate the temperature dependent supercurrent decay rate Γ(T) and elucidate a variety of different regimes for such a decay. We demonstrate that no classical-to-quantum crossover exists in the limit of fully transparent barriers, in which case quantum tunneling always prevails over TA.",
author = "Galaktionov, {Artem V.} and Golubev, {Dmitry S.} and Zaikin, {Andrei D.}",
year = "2019",
month = "3",
day = "1",
doi = "10.1140/epjst/e2019-800052-2",
language = "English",
volume = "227",
pages = "2001--2012",
journal = "EUROPEAN PHYSICAL JOURNAL: SPECIAL TOPICS",
issn = "1951-6355",
publisher = "Springer Verlag",
number = "15-16",

}

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TY - JOUR

T1 - Thermal and quantum decay of supercurrent in highly transparent weak links

AU - Galaktionov, Artem V.

AU - Golubev, Dmitry S.

AU - Zaikin, Andrei D.

PY - 2019/3/1

Y1 - 2019/3/1

N2 - We analyze a trade-off between thermal activation (TA) and quantum tunneling in the problem of supercurrent decay in superconducting junctions with highly transparent barriers. In such systems – unlike in conventional tunnel junctions – the supercurrent decay is essentially influenced by low energy Andreev levels forming an intrinsic quantum dissipative environment for the Josephson particle. We evaluate the temperature dependent supercurrent decay rate Γ(T) and elucidate a variety of different regimes for such a decay. We demonstrate that no classical-to-quantum crossover exists in the limit of fully transparent barriers, in which case quantum tunneling always prevails over TA.

AB - We analyze a trade-off between thermal activation (TA) and quantum tunneling in the problem of supercurrent decay in superconducting junctions with highly transparent barriers. In such systems – unlike in conventional tunnel junctions – the supercurrent decay is essentially influenced by low energy Andreev levels forming an intrinsic quantum dissipative environment for the Josephson particle. We evaluate the temperature dependent supercurrent decay rate Γ(T) and elucidate a variety of different regimes for such a decay. We demonstrate that no classical-to-quantum crossover exists in the limit of fully transparent barriers, in which case quantum tunneling always prevails over TA.

UR - http://www.scopus.com/inward/record.url?scp=85062722072&partnerID=8YFLogxK

U2 - 10.1140/epjst/e2019-800052-2

DO - 10.1140/epjst/e2019-800052-2

M3 - Article

VL - 227

SP - 2001

EP - 2012

JO - EUROPEAN PHYSICAL JOURNAL: SPECIAL TOPICS

JF - EUROPEAN PHYSICAL JOURNAL: SPECIAL TOPICS

SN - 1951-6355

IS - 15-16

ER -

ID: 32624441