Multi-particle quantum chaos in tilted optical lattices

Abstract

We show that, in the parameter regime of state of the art experiments on Bose Einstein Condensates loaded into optical lattices, the energy spectrum of the 1D Bose-Hubbard model amended by a static field exhibits unambiguous signatures of quantum chaos. In the dynamics, this leads to the irreversible decay of Bloch oscillations.

3 pages, 3 figure

References in corpus (5)

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Atomic Bose and Anderson glasses in optical lattices
• Quantum resonances and decoherence for delta-kicked atoms
• Experimental observation of high-order quantum accelerator modes
• A new Bloch period for interacting cold atoms in 1D optical lattices