Plasma modes in capacitively coupled superconducting nanowires

Submitting author affiliation:
I.E. Tamm Department of Theoretical Physics, P.N. Lebedev Physical Institute, Moscow, Russian Federation

Beilstein Arch. 2021, 202182.

Published 30 Nov 2021

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We investigate plasma oscillations in long electromagnetically coupled superconducting nanowires. We demonstrate that in the presence of inter-wire coupling plasma modes in each of the wires get split into two "new" modes propagating with different velocities across the system. These plasma modes form an effective dissipative quantum environment interacting with electrons inside both wires and causing a number of significant implications for low temperature behavior of the systems under consideration.

Keywords: quantum fluctuations, superconducting nanowires, plasma modes, quantum phase slips

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Latyshev, A.; Semenov, A. G.; Zaikin, A. D. Beilstein Arch. 2021, 202182. doi:10.3762/bxiv.2021.82.v1

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