Open quantum dynamics of Josephson charge pumps
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| Autores: | , , , , |
|---|---|
| פורמט: | artículo original |
| Fecha de Publicación: | 2025 |
| תיאור: | We investigate the macroscopic dynamics of Josephson charge pumps in the light of Alicki et al’s theoretical description of the Josephson junction as an open quantum system described by a Markovian master equation. Once the electrostatic interaction between the terminals is taken into account via nonlinear capacitive terms in the Hamiltonian, we find that the resulting description of pumping is physically reasonable and in good qualitative agreement with experimental observations. We comment on how this approach relates to other theoretical treatments of quantum pumps based on time-dependent potentials or scattering amplitudes. We also highlight the significance of our results in the broader context of the dynamics of charge pumping by active systems. |
| País: | Kérwá |
| מוסד: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| שפה: | Inglés |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/104836 |
| גישה מקוונת: | https://hdl.handle.net/10669/104836 https://doi.org/10.1088/1367-2630/ae03e4 |
| מילת מפתח: | Josephson junction Charge pump Quantum engine Open quantum system Electrical properties Quantum theory |