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arXiv · 1510.04438

Chaos and two-level dynamics of the Atomtronic Quantum Interference Device

Geva Arwas·Doron Cohen
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Abstract

We study the Atomtronics Quantum Interference Device employing a semiclassical perspective. We consider an $M$ site ring that is described by the Bose-Hubbard Hamiltonian. Coherent Rabi oscillations in the flow of the current are feasible, with an enhanced frequency due to to chaos-assisted tunneling. We highlight the consequences of introducing a weak-link into the circuit. In the latter context we clarify the phase-space considerations that are involved in setting up an effective "systems plus bath" description in terms of Josephson-Caldeira-Leggett Hamiltonian.

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Geva Arwas, Doron Cohen. 2015-10-15. Chaos and two-level dynamics of the Atomtronic Quantum Interference Device. https://doi.org/10.1088/1367-2630/18/1/015007

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