Journal
PHYSICAL REVIEW A
Volume 79, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.79.011604
Keywords
atom-photon collisions; Berry phase; boson systems; eigenvalues and eigenfunctions
Categories
Funding
- EU [IEF/219636]
- German Academic Exchange Service [D/06/41156]
- Region Ile de France (IF-RAF)
- CNRS
- French Ministry of Research
- ANR
Ask authors/readers for more resources
We propose a scheme to generate an Abelian gauge field in an atomic gas using two crossed laser beams. If the internal atomic state follows adiabatically the eigenstates of the atom-laser interaction, Berry's phase gives rise to a vector potential that can nucleate vortices in a Bose gas. The present scheme operates even for a large detuning with respect to the atomic resonance, making it applicable to alkali-metal atoms without significant heating due to spontaneous emission. We test the validity of the adiabatic approximation by integrating the set of coupled Gross-Pitaevskii equations associated with the various internal atomic states, and we show that the steady state of the interacting gas indeed exhibits a vortex lattice, as expected from the adiabatic gauge field.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available