Quantum superpositions of flow states on a ring
Quantum Gases
2015-05-18 v2
Abstract
We propose a scheme to generate quantum superpositions of macroscopically distinct flow states of ultracold atoms on a ring using Raman coupling employing a quantized laser field that is a cat-like superposition of optical vortices with opposite winding numbers. For atoms initially in their ground state and entangled optical vortices of coherent states, this scheme can produce a superposition of rotating and non-rotating states. We find fidelities of the quantum superpositions around 0.9 even before optimization.
Keywords
Cite
@article{arxiv.1004.3836,
title = {Quantum superpositions of flow states on a ring},
author = {Rina Kanamoto and Ewan M. Wright},
journal= {arXiv preprint arXiv:1004.3836},
year = {2015}
}