Dynamical Realization of Macroscopic Superposition States of Cold Bosons in a Tilted Double Well
Quantum Physics
2010-05-06 v3 Other Condensed Matter
Abstract
We present exact expressions for the quantum sloshing of Bose-Einstein condensates in a tilted two-well potential. Tunneling is suppressed by a small potential difference between wells, or tilt. However, tunneling resonances occur for critical values of the tilt when the barrier is high. At resonance, tunneling times on the order of 10-100 ms are possible. Furthermore, such tilted resonances lead to a dynamical scheme for creating few-body NOON-like macroscopic superposition states which are protected by the many body wavefunction against potential fluctuations.
Keywords
Cite
@article{arxiv.quant-ph/0610166,
title = {Dynamical Realization of Macroscopic Superposition States of Cold Bosons in a Tilted Double Well},
author = {Lincoln D. Carr and D. R. Dounas-Frazer and Miguel-Ángel García-March},
journal= {arXiv preprint arXiv:quant-ph/0610166},
year = {2010}
}
Comments
6 pages, 5 figures, final version, only minor changes from previous arXiv version