2009/02/18 by L. Machura, Łukasz Machura, Marcin Kostur +7
Physics and Astronomy · #Mechanical and Optical Resonators #Quantum and electron transport phenomena #cond-mat.stat-mech #cond-mat.supr-con #stochastic dynamics and bifurcation
paper · pdf · doi:10.1016/j.physe.2009.06.062
published as Phys. E 42, p 590, (2010) · 7 pages, 4 figures, Presented at the "Frontiers of Quantum and Mesoscopic Thermodynamics", 28 July - 2 August 2008, Prague, Czech Republic
arxiv created 2009/02/18 · openalex publication_date 2009/06/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study a resistively and capacitively shunted Josephson junction, which is driven by a combination of time-periodic and constant currents. Our investigations concern three main problems: (A) The voltage fluctuations across the junction; (B) The quality of transport expressed in terms of the Péclet number; (C) The efficiency of energy transduction from external currents. These issues are discussed in different parameter regimes that lead to: (i) absolute negative conductance; (ii) negative differential conductance, and (iii) normal, Ohmic-like conductance. Conditions for optimal operation of the system are studied.