Superfluid transport dynamics in a capacitive atomtronic circuit

Abstract

We simulate transport in an atomtronic circuit of a Bose-Einstein condensate that flows from a source region into a drain through a gate channel. The time-dependent Gross-Pitaevskii equation (GPE) solution matches the data of a recent experiment. The atomtronic circuit is found to be similar to a variable-resistance RLC circuit, which is critically damped at early times and shows LC oscillations later. The GPE also predicts atom loss from the drain. Studies of the dependence of condensate transport upon gate parameters suggest the utility of the GPE for investigation of atomtronic circuits.

Main Body: 5 pages, 4 figures, Supplemental Material: 11 pages, 4 figures

References in corpus (4)

• Experimental demonstration of painting arbitrary and dynamic potentials for Bose-Einstein condensates
• Observation of Quantized Conductance in Neutral Matter
• A high-accuracy algorithm for designing arbitrary holographic atom traps
• Coherent superposition of current flows in an Atomtronic Quantum Interference Device

Cited by in corpus (15)

• Atomtronic circuits: from many-body physics to quantum technologies
• Observation of two-dimensional Anderson localisation of ultracold atoms
• OpenMP GNU and Intel Fortran programs for solving the time-dependent Gross-Pitaevskii equation
• Quantitative acoustic models for superfluid circuits
• The Aharonov-Bohm effect in mesoscopic Bose-Einstein condensates
• Persistent current formation in double-ring geometries
• Photovoltaic Effect of Atomtronics Induced by Artificial Gauge Field
• Challenges and constraints of dynamically emerged source and sink in atomtronic circuits: From closed-system to open-system approaches
• A versatile apparatus for two-dimensional atomtronic quantum simulation
• Matterwaves, Matterons, and the Atomtronic Transistor Oscillator
• Unidirectional spin transport of a spin-orbit-coupled atomic matter wave using a moving Dirac $\delta$-potential well
• Dissipation in mesoscale superfluids
• Anderson localisation in two dimensions: insights from Localisation Landscape Theory, exact diagonalisation, and time-dependent simulations
• Superfluid Oscillator Circuit with Quantum Current Regulator
• Analogues of Josephson junctions and black hole event horizons in atomic Bose-Einstein condensates