Experimental demonstration of an atomtronic battery

Abstract

Operation of an atomtronic battery is demonstrated where a finite-temperature Bose-Einstein condensate stored in one half of a double-well potential is coupled to an initially empty load well that is impedance matched by a resonant terminator beam. The atom number and temperature of the condensate are monitored during the discharge cycle, and are used to calculate fundamental properties of the battery. The discharge behavior is analyzed according to a Thévenin equivalent circuit that contains a finite internal resistance to account for dissipation in the battery. Battery performance at multiple discharge rates is characterized by the peak power output, and the current and energy capacities of the system.

15 pages, 6 figures

References in corpus (2)

• Realization of a single Josephson junction for Bose-Einstein condensates
• A quasi-monomode guided atom-laser from an all-optical Bose-Einstein condensate

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• Matterwaves, Matterons, and the Atomtronic Transistor Oscillator
• Interference dynamics of matter-waves of SU($N$) fermions
• Datta-Das transistor for atomtronic circuits using artificial gauge fields
• Nonequilibrium Transport in a Superfluid Josephson Junction Chain: Is There Negative Differential Conductivity?
• Realizing an Atomtronic AQUID in a Rotating-Box Potential
• dc atomtronic quantum interference device: quantum superposition of persistent-current states and a parity-protected qubit
• Superfluid Oscillator Circuit with Quantum Current Regulator
• Photovoltaic transistor of atoms due to spin-orbit coupling in three optical traps
• Third quantization with Hartree approximation for open-system bosonic transport