Frictionless quantum quenches in ultracold gases: a quantum dynamical microscope

TL;DR

This paper introduces a method to expand ultracold gases without losing quantum correlations by using a frictionless quantum quench, effectively acting as a quantum dynamical microscope for many-body systems.

Contribution

It proposes a novel finite-time frictionless quantum quench technique to scale up ultracold gases while preserving quantum correlations, enabling detailed quantum state analysis.

Findings

Preserves quantum correlations during spatial scaling.

Enables high-resolution quantum state imaging.

Applicable to systems with self-similar dynamics.

Abstract

In this article, a method is proposed to spatially scale up a trapped ultracold gas while conserving the quantum correlations of the initial many-body state. For systems supporting self-similar dynamics, this is achieved by implementing a many-body finite-time frictionless quantum quench of the harmonic trap which acts as a quantum dynamical microscope.