Bogoliubov-Cherenkov Radiation in an Atom Laser
Abstract
We develop a simple yet powerful technique to study Bogoliubov-Cherenkov radiation by producing a pulsed atom laser from a strongly confined Bose-Einstein condensate. Such radiation results when the atom laser pulse falls past a Bose-Einstein condensate at high-hypersonic speeds, modifying the spatial profile to display a characteristic twin jet structure and a complicated interference pattern. The experimental observations are in excellent agreement with mean-field numerical simulations and an analytic theory. Due to the highly hypersonic regime reached in our experiment, this system offers a highly controllable platform for future studies of condensed-matter analogs of quantum electrodynamics at ultrarelativistic speeds.
Keywords
Cite
@article{arxiv.1711.08886,
title = {Bogoliubov-Cherenkov Radiation in an Atom Laser},
author = {B. M. Henson and Xuguang Yue and S. S. Hodgman and D. K. Shin and L. A. Smirnov and E. A. Ostrovskaya and X. W. Guan and A. G. Truscott},
journal= {arXiv preprint arXiv:1711.08886},
year = {2020}
}
Comments
14 pages 9 figures. v4 changes: \v{C}herenkov changed to Cherenkov