Year: 2023
Type: article
Abstract: We study the current-voltage characteristics of a superconducting junction with particle losses at the contacts. We adopt the Keldysh formalism to compute the steady-state current for varying transmission of the contact. In the low-transmission regime, the dissipation leads to an enhancement of the current at low bias, a nonmonotonic dependence of current on dissipation, and the emergence of new structures in the current-voltage curves. The effect of dissipation by particle loss is found to be qualitatively different from that of a finite temperature and a finite inelastic scattering rate in the reservoirs.
Source: Physical Review Research
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,625
Funders: National Science Foundation, Matsuo Foundation for Science Promotion, Deutsche Forschungsgemeinschaft, Ministry of Education, Culture, Sports, Science and Technology, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, European Research Council, Japan Society for the Promotion of Science, H2020 European Research Council
Awards: G1117218739, G1763245312, Tailoring interactions in quantum matter, TRR 185: OSCAR Kontrolle atomarer und photonischer Quantenmaterie durch maßgeschneiderte Kopplung an Reservoire, G3031686616, Mass, heat and spin transport in interlinked quantum gases, SFB 1238: Kontrolle und Dynamik von Quantenmaterialien, G581057490, Low dimensional quantum fluids, G5963703728, New developments in atomtronics, G6980798863, G7722004180, EXC 2004: Materie und Licht für Quanteninformation (ML4Q), Interplay between Topology, Interactions and Dissipation in Driven Quantum Many-Body Systems
OpenAlex ID: W4385741676