Atomtronic multi-terminal Aharonov-Bohm interferometer
arXiv:2205.01636 · doi:10.1103/PhysRevA.107.L051303
Abstract
We study a multi-functional device for cold atoms consisting of a three-terminal ring circuit pierced by a synthetic magnetic flux, where the ring can be continuous or discretized. The flux controls the atomic current through the ring via the Aharonov-Bohm effect. Our device shows a flux-induced transition of reflections from an Andreev-like negative density to positive density. Further, the flux can direct the atomic current into specific output ports, realizing a flexible non-reciprocal switch to connect multiple atomic systems or sense rotations. By changing the flux linearly in time, we convert constant matter wave currents into an AC modulated current. This effect can be used to realize an atomic frequency generator and study fundamental problems related to the Aharonov-Bohm effect. We experimentally demonstrate Bose-Einstein condensation into the light-shaped optical potential of the three-terminal ring. Our work opens up the possibility of novel atomtronic devices for practical applications in quantum technologies.
17 pages, 11 figures
References in corpus (14)
- Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
- Observation of Quantized Conductance in Neutral Matter
- Atomtronics-enabled Quantum Technologies
- Hypersonic Bose-Einstein Condensates in Accelerator Rings
- Coherent superposition of current flows in an Atomtronic Quantum Interference Device
- Imprinting persistent currents in tunable fermionic rings
- Dynamics of one-dimensional Bose liquids: Andreev-like reflection at Y-junctions and absence of the Aharonov-Bohm effect
- Experimental demonstration of an atomtronic battery
- Andreev-like reflections with cold atoms
- Dissipatively driven strongly interacting bosons in a gauge field
- Direct calculation of time varying Aharonov Bohm effect
- Implementation of an atomtronic SQUID in a strongly confined toroidal condensate
- Revisiting the Marton, Simpson, and Suddeth experimental confirmation of the Aharonov-Bohm effect
- Matterwaves, Matterons, and the Atomtronic Transistor Oscillator
Cited by in corpus (7)
- Persistent currents in ultracold gases
- Thermal junctions controlled with Aharonov-Bohm phases
- Coherent excitation transport through ring-shaped networks
- Quantum transport phenomena induced by time-dependent fields
- Superfluid Oscillator Circuit with Quantum Current Regulator
- Non-Hermitian magnetic moment
- Josephson Dynamics in 2D Ring-shaped Condensates