Quantum transport with cold atoms in periodic optical lattices
Cold or ultracold atoms loaded into optical lattices open a new arena for the
experimental investigation of quantum transport phenomena in spatially periodic potentials.
Possibly amended by particle-particle interactions and decoherence, external
perturbations such as static and/or time periodic fields modify theoretically well understood
dynamical phenomena such as dynamical localization and quantum
resonances in surprising ways. Our current research in this field is strongly inspired and guided by ongoing
experiments with Bose-Einstein condensates at Pisa and Tokyo, respectively.
Recent Publications:
A. Kolovsky, J. Link, and S. Wimberger
Energetically constrained co-tunneling of cold atoms,
New J. Phys. 14, 075002 (2012)
G. Kordas, S. Wimberger, and D. Witthaut
Dissipation induced macroscopic entanglement in an open optical lattice,
EPL 100, 30007 (2012)
M. Lubasch, F. Mintert, and S. Wimberger
Dynamical enhancement of
spatial entanglement in massive particles,
Phys. Rev. A 84,
063615 (2011)
G. Tayebirad, R. Mannella, and S. Wimberger
Engineering interband transport by time-dependent disorder,
Phys. Rev. A 84, 031605(R) (2011)
P. Plötz, J. Madronero, and S. Wimberger
Collapse and revival in inter-band oscillations of a two-band
Bose-Hubbard model, J. Phys. B 43,
081001(FTC) (2010)
A. Zenesini, H. Lignier, G. Tayebirad, J. Radogostowicz, D. Ciampini, R. Mannella, S. Wimberger, O. Morsch, and E. Arimondo
Time-resolved
measurement of Landau-Zener tunneling in periodic potentials, Phys.
Rev. Lett. 103, 090403 (2009)
D. Witthaut, F. Trimborn, and S. Wimberger
Dissipation induced coherence of a two-mode Bose-Einstein condensate, Phys. Rev. Lett. 101, 200402 (2008)
A. Tomadin, R. Mannella, and S. Wimberger
Many-body interband tunneling as a witness for complex dynamics
in the Bose-Hubbard model,
Phys. Rev. Lett. 98, 130402 (2007)
C. Sias, A. Zenesini, H. Lignier, S. Wimberger, D. Ciampini, O. Morsch, and E. Arimondo
Resonantly enhanced tunneling of Bose-Einstein condensates in periodic potentials,
Phys. Rev. Lett. 98, 120403 (2007)
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