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The dynamics of systems in barrier structures is determined by the rate of the fluctuational decay of metastable states in a potential relief. The nature of the decay undergoes a qualitative change with a variation of the temperature. As the temperature decreases, thermal fluctuations freeze out and are replaced by quantum ones, which leads to a kind of phase transition in the dynamics. The transition temperature depends on the degree of metastability and can be controlled by an external load. This dependence is calculated for an extended nanosystem in an inclined periodic relief of the "washboard" type in a wide range of load changes. The obtained dependence generalizes the previously known results and can serve as the phase diagram of various dynamics mechanisms.
Parmentier RD. Solitons and long Josephson junctions. In: Weinstock H, Ralston RW, editors. The new superconducting electronics. Dordrecht: Springer; 1993.
Altomare F, Chang AM. One-dimensional superconductivity in nanowires. John Wiley & Sons; 2013.
Vachaspati T. Kinks and Domain Walls. An Introduction to Classical and Quantum Solitons, Cambridge: Cambridge University Press; 2006.
Petukhov BV. Dislocation Dynamics in a Crystal Lattice (Peierls-Nabarro) Relief. In: Vardanian RA, editor. Crystal Lattice Defects and Dislocation Dynamics. New York: Nova Science Publishers, Inc. Huntington; 2000.
Natarajan CM, Tanner MG, Hadfield RH. Superconducting nanowire single-photon detectors: Physics and applications. Supercond Sci Technol 2012;25:063001.
Polakovic T, Armstrong W, Karapetrov G, Meziani Z-E and Novosad V. Unconventional Applications of Superconducting Nanowire Single Photon Detectors. Nanomaterials 2020;10:1198. DOI:10.3390.
Friedman JR, Han S editors. Exploring the Quantum/classical Frontier: Recent Advances in Macroscopic Quantum Phenomena. New York: Nova Science Publishers, Inc.; 2003.
Parkin SSP, Hayashi M, Thomas L. Magnetic Domain-Wall Racetrack Memory. Science. 2008;320(5873): 190-194.
Kivshar YS, Malomed BA. Dynamics of solitons in nearly integrable systems. Rev Mod Phys 1989;61(4):763-915.
McLaughlin DW, Scott AC. Perturbation analysis of fluxon dynamics. Phys Rev A. 1978;18(4):1652-1680.
Rice MJ. Physical dynamics of solitons. Phys Rev B. 1983;28(6):3587-3589.
Cuevas-Maraver J, Kevrekidis PG, Williams F., editors. The sine-Gordon model and its applications. From Pendula and Josephson Junctions to Gravity and High-Energy Physics. Nonlinear Systems and Complexity. Switzerland: Springer; 2014.
Petukhov BV, Pokrovskii VL. Quantum and classical motion of dislocations in a Peierls potential relief. Soviet phys JETP. 1973;36(2):336-342.
Larkin AI, Ovchinnikov YuN. The crossover from classical to quantum regime in the problem of the decay of the metastable state. J Stat Phys. 1985;41(3/4):425-443,
Tian M, Wang J, Kurtz JS, Liu Y, Chan MHW, Mayer TS, Mallouk TE. Dissipation in Quasi One-Dimensional Superconducting Single-Crystal Sn Nanowires. Phys Rev B 2005;71:104521.
Ivlev BI, Mel’nikov VI. Tunneling and activated motion of a string across a potential barrier. Phys Rev B. 1987;36(13): 6889-903.