Quasistatic transfer protocols for atomtronic superfluid circuits
arXiv:2003.03984 · doi:10.1038/s41598-021-82386-y
Abstract
Quasi-static protocols for systems that feature a mixed phase-space with both chaos and quasi-regular regions are beyond the standard paradigm of adiabatic processes. We focus on a many-body system of atoms that are described by the Bose-Hubbard Hamiltonian, specifically a circuit that consists of bosonic sites. We consider a sweep process: slow variation of the rotation frequency of the device (time dependent Sagnac phase). The parametric variation of phase-space topology implies that the quasi-static limit is irreversible. Detailed analysis is essential in order to determine the outcome of such transfer protocol, and its efficiency.
arXiv comment15 pages, 10 figures
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Cited by in corpus (4)
- Many-body adiabatic passage: Instability, chaos, and quantum classical correspondence
- Quantum irreversibility of quasistatic protocols for finite-size quantized systems
- Quantum tomography of the superfluid-insulator transition for a mesoscopic atomtronic ring
- Stochastic modeling of spreading and dissipation in mixed-chaotic systems that are driven quasistatically