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Spontaneous symmetry breaking in linearly coupled disk-shaped Bose-Einstein condensates
linearly coupled disk-shaped Bose-Einstein condensates Spontaneous symmetry breaking
2011/7/7
We study effects of tunnel coupling on a pair of parallel disk-shaped Bose-Einstein condensates with the self-attractive intrinsic nonlinearity. Each condensate is trapped in a combination of in-plane...
Spontaneous symmetry breaking of photonic and matter waves in two-dimensional pseudopotentials
Spontaneous symmetry breaking photonic matter waves two-dimensional pseudopotentials
2011/7/6
We introduce the two-dimensional Gross-Pitaevskii/nonlinear-Schrodinger (GP/NLS) equation with the self-focusing nonlinearity confined to two identical circles, separated or overlapped. The model can ...
Unruh Effect and the Spontaneous Breakdown of the Conformal Symmetry
Fulling-Davies-Unruh effect conformal relativity accelerated frames
2011/3/3
We revise the Unruh effect (vacuum radiation in uniformly relativistic acceler-ated frames) in a group-theoretical setting by constructing a conformal SO(4,2)-invariant quantum field theory and its sp...
Spontaneous Symmetry Breaking during Formation of ZnO Nanocrystals
Crystal structure Growth models Nanomaterials Spontaneous symmetry breaking
2011/3/4
Systemic symmetry is introduced into our work to investigate the symmetries of different ZnO nanocrystals. Result shows that systemic symmetries obey the law of spontaneous symmetry breaking during th...