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Phase slips in a one-dimensional superconducting wire: Crossover from quantum tunneling to thermal hopping |
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| Authors: | Zuli Xu Tiezheng Qian Ping Sheng |
| Affiliation: | aDepartment of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China bDepartment of Mathematics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China |
| Abstract: | We carry out quantum Monte Carlo simulations for the finite temperature behavior of a chain of coupled superconducting grains, whose T = 0 characteristics have been presented by Matveev et al. [K.A. Matveev, A.I. Larkin, L.I. Glazman, Phys. Rev. Lett. 89 (2002) 096802]. Quantum phase slips at low temperatures and the crossover to thermal hopping at elevated temperatures are observed. The effect of phase slips on persistent currents is numerically demonstrated. |
| Keywords: | Phase slip Persistent current Nanowire |
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