23 citations · 87 across the 5 of their papers we have counts for
4 papers · 1 filter
Many-body Quantum Chaos and Entanglement in a Quantum Ratchet
Marc Andrew Valdez, Gavriil Shchedrin, Martin Heimsoth +3
We uncover signatures of quantum chaos in the many-body dynamics of a Bose-Einstein condensate-based quantum ratchet in a toroidal trap. We propose measures including entanglement,…
Effective Josephson dynamics in resonantly driven Bose-Einstein condensates
Martin Heimsoth, David Hochstuhl, Charles E. Creffield +2
We show that the orbital Josephson effect appears in a wide range of driven atomic Bose-Einstein condensed systems, including quantum ratchets, double wells and box potentials. We…
Orbital Josephson effect and interactions in driven atom condensates on a ring
M. Heimsoth, C. E. Creffield, L. D. Carr +1
In a system of ac-driven condensed bosons we study a new type of Josephson effect occurring between states sharing the same region of space and the same internal atom structure. We…
Perturbative analysis of coherent quantum ratchets in cold atom systems
Martin Heimsoth, Charles E. Creffield, Fernando Sols
We present a perturbative study of the response of cold atoms in an optical lattice to a weak time- and space-asymmetric periodic driving signal. In the noninteracting limit, and f…