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12 papers · 1 filter
Probing the statistical properties of Bose-Einstein condensates with light
Z. Idziaszek, K. Rzazewski, M. Lewenstein
A scattering of short, weak, nonresonant laser pulses on a Bose-Einstein condensate is proposed as a tool for studying its statistical properties. We show in particular that the va…
Coherent Evolution of Bouncing Bose-Einstein Condensates
K. Bongs, S. Burger, G. Birkl +5
We investigate the evolution of Bose-Einstein condensates falling under gravity and bouncing off a mirror formed by a far-detuned sheet of light. After reflection, the atomic densi…
Motion of vortex lines in quantum mechanics
Iwo Bialynicki-Birula, Zofia Bialynicka-Birula, Cezary Sliwa
Exact analytic solutions of the time dependent Schrodinger equation are produced that exhibit a variety of vortex structures. The qualitative analysis of the motion of vortex lines…
Connectedness Of The Boundary In The AdS/CFT Correspondence
Edward Witten, S. -T. Yau
Let be a complete Einstein manifold of negative curvature, and assume that (as in the AdS/CFT correspondence) it has a Penrose compactification with a conformal boundary of…
Localization of Eigenstates & Mean Wehrl Entropy
Karol Zyczkowski
Dynamics of a periodically time dependent quantum system is reflected in the features of the eigenstates of the Floquet operator. Of the special importance are their localization p…
Truncations of random unitary matrices
Karol Zyczkowski, Hans-Juergen Sommers
We analyze properties of non-hermitian matrices of size M constructed as square submatrices of unitary (orthogonal) random matrices of size N>M, distributed according to the Haar m…