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42 papers · 1 filter
Spontaneous generation of spin-orbit coupling in magnetic dipolar Fermi gases
T. Sogo, M. Urban, P. Schuck +1
The stability of an unpolarized two-component dipolar Fermi gas is studied within mean-field theory. Besides the known instability towards spontaneous magnetization with Fermi sphe…
Size-independence of statistics for boundary collisions of random walks and its implications for spin-polarized gases
Dominique J. Bicout, Efim Kats, Alexander K. Petukhov +1
A bounded random walk exhibits strong correlations between collisions with a boundary. For an one-dimensional walk, we obtain the full statistical distribution of the number of suc…
Effect of disorder close to the superfluid transition in a two-dimensional Bose gas
Baptiste Allard, Thomas Plisson, Markus Holzmann +4
We experimentally study the effect of disorder on trapped quasi two-dimensional (2D) 87Rb clouds in the vicinity of the Berezinskii-Kosterlitz-Thouless (BKT) phase transition. The…
Isoscalar monopole excitations in O: -cluster states at low energy and mean-field-type states at higher energy
T. Yamada, Y. Funaki, T. Myo +5
Isoscalar monopole strength function in O up to MeV is discussed. We found that the fine structures at the low energy region up to MeV in t…
Macroscopic quantum tunneling in quartic and sextic potentials: application to a phase qubit
Nicolas Didier, Frank W. J. Hekking
Macroscopic quantum tunneling of the phase is a fundamental phenomenon in the quantum dynamics of superconducting nanocircuits. The tunneling rate can be controlled in such circuit…
Mechanical lattice instability and thermodynamical properties in classical solids
G. Rastelli, E. Cappelluti
In this paper we revisit the onset of the instability of the solid state in classical systems within self-consistent phonon theory (SCPT). Spanning the whole phase diagram versus v…