Creating artificial magnetic fields for cold atoms by photon-assisted tunneling
Kirensky Institute of Physics - 660036 Krasnoyarsk, Russia and Siberian Federal University - 660041 Krasnoyarsk, Russia
Accepted: 4 January 2011
This paper proposes a simple setup for introducing an artificial magnetic field for neutral atoms in 2D optical lattices. This setup is based on the phenomenon of photon-assisted tunneling and involves a low-frequency periodic driving of the optical lattice. This low-frequency driving does not affect the electronic structure of the atom and can be easily realized by the same means which are employed to create the lattice. We also address the problem of detecting this effective magnetic field. In particular, we study the center-of-mass wave packet dynamics, which is shown to exhibit certain features of cyclotron dynamics of a classical charged particle.
PACS: 03.75.Lm – Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations / 73.43.-f – Quantum Hall effects / 05.45.-a – Nonlinear dynamics and chaos
© EPLA, 2011