2014/01/15 by Ryan Requist, Requist, Ryan · 1 citation
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #Spectroscopy and Quantum Chemical Studies #cond-mat.str-el #quant-ph
paper · pdf · doi:10.48550/arxiv.1401.3719
Revised with additional figures and supplementary material
arxiv created 2014/05/17 · arxiv updated 2014/05/20
The combination of interactions and nonadiabaticity in many body systems is shown to induce magnetic gauge potentials in the equation of motion for the one-body reduced density matrix as well as the effective Schroedinger equation for the natural orbitals. The consequences of induced gauge geometry for charge and energy transfer are illustrated in the exact nonlinear dynamics of a three-site Hubbard ring ramped into a Floquet state by a time dependent circulating electric potential. Remarkably, the pumped charge flows against the driving in the strongly interacting regime, and the quasienergy level shift, which defines the work done on the system, can become negative.