Dynamical control of the conductivity of an atomic Josephson junction

Abstract

We propose to dynamically control the conductivity of a Josephson junction composed of two weakly coupled one dimensional condensates of ultracold atoms. A current is induced by a periodically modulated potential difference between the condensates, giving access to the conductivity of the junction. By using parametric driving of the tunneling energy, we demonstrate that the low-frequency conductivity of the junction can be enhanced or suppressed, depending on the choice of the driving frequency. The experimental realization of this proposal provides a quantum simulation of optically enhanced superconductivity in pump-probe experiments of high temperature superconductors.

10 pages, 6 figures

References in corpus (13)

• Two-terminal transport measurements with cold atoms
• Dynamics of a tunable superfluid junction
• Theory of Laser-Controlled Competing Superconducting and Charge Orders
• Two-point phase correlations of a one-dimensional bosonic Josephson junction
• Proposed parametric cooling of bilayer cuprate superconductors by terahertz excitation
• The Josephson effect throughout the BCS-BEC crossover
• Coherent Modulation of the YBa2Cu3O6+x Atomic Structure by Displacive Stimulated Ionic Raman Scattering
• Femtosecond x rays link melting of charge-density wave correlations and light-enhanced coherent transport in YBa2Cu3O6.6
• Correlation-induced superconductivity dynamically stabilized and enhanced by laser irradiation
• Redistribution of phase fluctuations in a periodically driven cuprate superconductor
• Transiently enhanced interlayer tunneling in optically driven high $T_c$ superconductors
• Terahertz field control of interlayer transport modes in cuprate superconductors
• Asymptotic population imbalance of an ultracold bosonic ensemble in a driven double-well

Cited by in corpus (5)

• Observation of the BKT Transition in a 2D Bose Gas via Matter-Wave Interferometry
• Quantum Simulations with Bilayer 2D Bose Gases in Multiple-RF-dressed Potentials
• Observation of a Bilayer Superfluid with Interlayer Coherence
• Engineering Ponderomotive Potential for Realizing $\pi$ and $\pi /2$ Bosonic Josephson Junctions
• Atomic Josephson Parametric Amplifier