Floquet engineering a bosonic Josephson junction

We study Floquet engineering of the tunnel coupling between a pair of one-dimensional bosonic quasi-condensates in a tilted double-well potential. By modulating the energy difference between the two wells, we re-establish tunnel coupling and precisely control its amplitude and phase. This allows us...

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Published in:arXiv.org 2022-02
Main Authors: Si-Cong Ji, Schweigler, Thomas, Tajik, Mohammadamin, Cataldini, Federica, Sabino, João, Møller, Frederik S, Erne, Sebastian, Schmiedmayer, Jörg
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Language:English
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Coupling
Josephson junctions
Tunnels
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creator Si-Cong Ji
Schweigler, Thomas
Tajik, Mohammadamin
Cataldini, Federica
Sabino, João
Møller, Frederik S
Erne, Sebastian
Schmiedmayer, Jörg
description We study Floquet engineering of the tunnel coupling between a pair of one-dimensional bosonic quasi-condensates in a tilted double-well potential. By modulating the energy difference between the two wells, we re-establish tunnel coupling and precisely control its amplitude and phase. This allows us to initiate coherence between two initially uncorrelated Bose gases and prepare different initial states in the emerging sine-Gordon Hamiltonian. We fully characterize the Floquet system and study the dependence of both equilibrium properties and relaxation on the modulation.
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subjects Coupling
Josephson junctions
Tunnels
title Floquet engineering a bosonic Josephson junction
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