Phase Retrieval of Vortices in Bose-Einstein Condensates
Quantum Gases
2024-04-24 v2 Signal Processing
Abstract
We propose and demonstrate numerically a measurement scheme for complete reconstruction of the 2D quantum wave function of a Bose-Einstein condensate, amplitude and phase, from a time-of-flight measurement. We identify a fundamental ambiguity present in the measurement of phase structures of high-symmetry excitations (e.g., vortices) and show how to overcome it by allowing for different expansion durations in different directions. We demonstrate this approach with the reconstruction of matter-wave vortices and arrays of vortices.
Keywords
Cite
@article{arxiv.2211.11668,
title = {Phase Retrieval of Vortices in Bose-Einstein Condensates},
author = {Ron Ziv and Anatoly Patsyk and Yaakov Lumer and Yoav Sagi and Yonina C. Eldar and Mordechai Segev},
journal= {arXiv preprint arXiv:2211.11668},
year = {2024}
}