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20 papers · 1 filter
Induced measures in the space of mixed quantum states
Karol Zyczkowski, Hans-Juergen Sommers
We analyze several product measures in the space of mixed quantum states. In particular we study measures induced by the operation of partial tracing. The natural, rotationally inv…
Quantum Correlations in Two-Fermion Systems
John Schliemann, J. Ignacio Cirac, Marek Kus +2
We characterize and classify quantum correlations in two-fermion systems having 2K single-particle states. For pure states we introduce the Slater decomposition and rank (in analog…
Classical 1D maps, quantum graphs and ensembles of unitary matrices
Prot Pakonski, Karol Zyczkowski, Marek Kus
We study a certain class of classical one dimensional piecewise linear maps. For these systems we introduce an infinite family of Markov partitions into equal cells. The symbolic d…
Finite temperature oscillations of a Bose-Einstein condensate in a two-gas model
R. Bach, M. Brewczyk, K. Rzazewski
The temperature dependence of the frequencies of a Bose-Einstein condensate obtained in experiment has not been fully understood theoretically. In this paper we present a simplifie…
Laser Cooling of Trapped Fermi Gases deeply below the Fermi Temperature
Z. Idziaszek, L. Santos, M. Lewenstein
We study the collective Raman cooling of a polarized trapped Fermi gas in the Festina Lente regime, when the heating effects associated with photon reabsorptions are suppressed. We…
Semiclassical theory of trapped fermionic dipoles
K. Goral, Berthold-Georg Englert, K. Rzazewski
We investigate the properties of a degenerate dilute gas of neutral fermionic particles in a harmonic trap that interact via dipole-dipole forces. We employ the semiclassical Thoma…