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Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
- M. Lewenstein, A. Sanpera, V. Ahufinger, B. Damski, Aditi Sen(De), U. Sen
- Physics
- 29 June 2006
We review recent developments in the physics of ultracold atomic and molecular gases in optical lattices. Such systems are nearly perfect realisations of various kinds of Hubbard models, and as such…
The simplest quantum model supporting the Kibble-Zurek mechanism of topological defect production: Landau-Zener transitions from a new perspective.
- B. Damski
- PhysicsPhysical review letters
- 30 October 2004
It can be shown that the dynamics of the Landau-Zener model can be accurately described in terms of the Kibble-Zurek theory of the topological defect production in nonequilibrium phase transitions.…
Formation of shock waves in a Bose-Einstein condensate (8 pages)
- B. Damski
- Physics
- 18 September 2003
We consider propagation of density wave packets in a Bose-Einstein condensate. We show that the shape of initially broad, laser-induced, density perturbation changes in the course of free time…
Quantum fidelity in the thermodynamic limit.
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Exact results for fidelity susceptibility of the quantum Ising model: the interplay between parity, system size, and magnetic field
We derive an exact closed-form expression for fidelity susceptibility of even- and odd-sized quantum Ising chains in a transverse field. To this aim, we diagonalize the Ising Hamiltonian and study…
Counterdiabatic driving of the quantum Ising model
- B. Damski
- Physics
- 30 September 2014
A system undergoes adiabatic evolution when its population in the instantaneous eigenbasis of its time-dependent Hamiltonian changes only negligibly. The realization of such dynamics requires…
Scaling of ground-state fidelity in the thermodynamic limit: XY model and beyond
We study ground-state fidelity defined as the overlap between two ground states of the same quantum system obtained for slightly different values of the parameters of its Hamiltonian. We focus on the…
Mott-insulator phase of the one-dimensional Bose-Hubbard model: A high-order perturbative study
- B. Damski, J. Zakrzewski
- Physics
- 2 March 2006
The one-dimensional Bose-Hubbard model at a unit filling factor is studied by means of a very high-order symbolic perturbative expansion. Analytical expressions are derived for the ground-state…
Soliton creation during a Bose-Einstein condensation.
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Atomic Bose and Anderson glasses in optical lattices.
- B. Damski, J. Zakrzewski, L. Santos, P. Zoller, M. Lewenstein
- PhysicsPhysical review letters
- 4 March 2003
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