Nonequilibrium steady states of Bose-Einstein condensates with a local particle loss in double potential barriers
| Autor: | Ippei Danshita, Masaya Kunimi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
Bistability Particle loss FOS: Physical sciences Dirac delta function Non-equilibrium thermodynamics 01 natural sciences Stability (probability) 010305 fluids & plasmas law.invention symbols.namesake Hysteresis Quantum Gases (cond-mat.quant-gas) law Quantum mechanics 0103 physical sciences symbols Condensed Matter - Quantum Gases 010306 general physics Bose–Einstein condensate |
| Zdroj: | Physical Review A. 100 |
| ISSN: | 2469-9934 2469-9926 |
| Popis: | We investigate stability of non-equilibrium steady states of Bose-Einstein condensates with a local one-body loss in the presence of double potential barriers. We construct an exactly solvable mean-field model, in which the local loss and the potential barriers take the form of a delta function. Using the exact solutions of our model, we show that there are parameter regions in which two steady-state solutions are dynamically stable, i.e., the model exhibits bistability. We also find that unidirectional hysteresis phenomena appear when the local-loss rate is varied in some parameter region. Comment: 15 pages, 14 figures |
| Databáze: | OpenAIRE |
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