Detecting Topological phase transitions in a double kicked quantum rotor

TL;DR

This paper proposes a feasible method to detect topological phase transitions in a double kicked atom-optics system using a Bose-Einstein condensate, considering experimental limitations for practical implementation.

Contribution

It introduces a concrete theoretical approach for observing topological phase transitions in quantum kicked rotors with optimized experimental protocols.

Findings

Feasible detection method for topological transitions proposed

Experimental limitations like phase noise and atom loss addressed

Optimized procedure enhances observability in quantum systems

Abstract

We present a concrete theoretical proposal for detecting topological phase transitions in double kicked atom-optics kicked rotors with internal spin-1/2 degree of freedom. The implementation utilizes a kicked Bose-Einstein condensate evolving in one-dimensional momentum space. To reduce influence of atom loss and phase decoherence we aim to keep experimental durations short while maintaining a resonant experimental protocol. Experimental limitations induced by phase noise, quasimomentum distributions, symmetries, and the AC-Stark shift are considered. Our results thus suggest a feasible and optimized procedure for observing topological phase transitions in quantum kicked rotors.