Simulation of XXZ Spin Models using Sideband Transitions in Trapped Bosonic Gases

Chu, Anjun; Will, Johannes; Arlt, Jan; Klempt, Carsten; Rey, Ana Maria

doi:10.48550/arxiv.2004.01282

Cited by 1 publication

(1 citation statement)

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“…The development of a generic framework to understand the properties of non-equilibrium quantum states is a long-standing challenge in modern physics. Theoretical work [1][2][3][4][5][6] combined with technical advances in the control and characterization of many-body physics in cold atom experiments [7][8][9][10][11][12][13][14][15] has led to new developments in this direction, such as extending the concept of phase transitions to non-equilibrium situations. Specifically, dynamical phase transitions (DPTs) [1,[16][17][18][19][20] have been introduced to classify distinct regimes of dynamical behaviour that arise after a sudden quench of a control parameter in a closed system.…”

Section: Introductionmentioning

confidence: 99%

A cavity-QED quantum simulator of dynamical phases of a BCS superconductor

Lewis-Swan,

Barberena,

Cline

et al. 2020

Preprint

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We propose to simulate dynamical phases of a BCS superconductor using an ensemble of cold atoms trapped in an optical cavity. Effective Cooper pairs are encoded via internal states of the atoms and attractive interactions are realized via the exchange of virtual photons between atoms coupled to a common cavity mode. Control of the interaction strength combined with a tunable dispersion relation of the effective Cooper pairs allows exploration of the full dynamical phase diagram of the BCS model, as a function of system parameters and the prepared initial state. Our proposal paves the way for the study of non-equilibrium features of quantum magnetism and superconductivity by harnessing atom-light interactions in cold atomic gases.

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