Results 31 to 40 of about 1,769 (45)
Barrier transmission for the Nonlinear Schr\"odinger Equation: Surprises of nonlinear transport
, 2008 In this communication we report on a peculiar property of barrier transmission that systems governed by the nonlinear Schroedinger equation share with the linear one: For unit transmission the potential can be divided at an arbitrary point into two sub ...
Chabanov V M +3 more
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Condensate splitting in an asymmetric double well for atom chip based sensors
, 2006 We report on the adiabatic splitting of a BEC of $^{87}$Rb atoms by an asymmetric double-well potential located above the edge of a perpendicularly magnetized TbGdFeCo film atom chip.
A. I. Sidorov +5 more
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Theory of magnetization plateaux in the Shastry-Sutherland model
, 2008 Using perturbative continuous unitary transformations, we determine the long-range interactions between triplets in the Shastry-Sutherland model, and we show that an unexpected structure develops at low magnetization with plateaux progressively appearing
Dorier, J., Mila, F., Schmidt, K. P.
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, 2013 It is shown that spin-orbit interaction leads to drastic changes in wave patterns generated by a flow of two-component Bose-Einstein condensate (BEC) past an obstacle.
Kamchatnov, A. M., Kartashov, Y. V.
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Quantitative Probe of Pairing Correlations in a Cold Fermionic Atom Gas
, 2004 A quantitative measure of the pairing correlations present in a cold gas of fermionic atoms can be obtained by studying the dependence of RF spectra on hyperfine state populations.
A. H. MacDonald +3 more
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Synchronized and desynchronized phases of coupled non-equilibrium exciton-polariton condensates
, 2008 We theoretically analyze the synchronized and desynchronized phases of coupled non-equilibrium polariton condensates within mean field theory. An analytical condition for the existence of a synchronized phase is derived for two coupled wells. The case of
L. P. Pitaevskii +3 more
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, 2010 We study the behavior of a Bose-Einstein condensate in which atoms are weakly coupled to a highly excited Rydberg state. Since the latter have very strong van der Waals interactions, this coupling induces effective, nonlocal interactions between the ...
D. Kirzhnits +7 more
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Instabilities, nonhermiticity and exceptional points in the cranking model
, 2007 A cranking harmonic oscillator model, widely used for the physics of fast rotating nuclei and Bose-Einstein condensates, is re-investigated in the context of PT-symmetry. The instability points of the model are identified as exceptional points.
Ahmed Z +18 more
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, 2009 We report on the experimental observation of vortex formation and production of tangled vortex distribution in an atomic BEC of Rb-87 atoms submitted to an external oscillatory perturbation. The oscillatory perturbations start by exciting quadrupolar and
A.A. Penckwitt +37 more
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