Entanglement detection via entropies in spinor Bose gases


Simultaneous measurements of two non-commuting spin observables allows for direct access to a quasi-probability distribution and its associated entropy. In the Gaussian regime, this corresponds to the Husimi Q-distribution and Wehrl entropy, respectively. We analytically and numerically model the system and measure a non-zero Wehrl mutual information—a perfect entanglement witness for pure states. We present a preliminary analysis of experimental data that shows for certain times non-zero Wehrl mutual information is observed.

Jun 29, 2021
Heidelberg, Germany
Oliver Stockdale
Oliver Stockdale
Physics Graduate

My interests include scientific communication, applying my knowledge of physics to solve problems, as well as teaching maths and physics