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Interferometric approach to measuring band topology in 2D optical lattices
Dmitry A. Abanin, Takuya Kitagawa, Immanuel Bloch +1
Recently, optical lattices with non-zero Berry's phases of Bloch bands have been realized. New approaches for measuring Berry's phases and topological properties of bands with expe…
Multimode dynamics and emergence of a characteristic length-scale in a one-dimensional quantum system
Maximilian Kuhnert, Remi Geiger, Tim Langen +6
We study the non-equilibrium dynamics of a coherently split one-dimensional (1d) Bose gas by measuring the full probability distribution functions of matter-wave interference. Obse…
Universal Rephasing Dynamics after a Quantum Quench via Sudden Coupling of Two Initially Independent Condensates
Emanuele G. Dalla Torre, Eugene Demler, Anatoli Polkovnikov
We consider a quantum quench in which two initially independent condensates are suddenly coupled, and study the subsequent "rephasing" dynamics. For weak couplings, the time-evolut…
Cooling through optimal control of quantum evolution
Armin Rahmani, Takuya Kitagawa, Eugene Demler +1
Nonadiabatic unitary evolution with tailored time-dependent Hamiltonians can prepare systems of cold atomic gases with various desired properties. For a system of two one-dimension…
Collective excitations of quasi-two-dimensional trapped dipolar fermions: transition from collisionless to hydrodynamic regime
Mehrtash Babadi, Eugene Demler
We study the collective excitations of polarized single-component quasi-two-dimensional dipolar fermions in an isotropic harmonic trap by solving the collisional Boltzmann-Vlasov (…