Quantum tunneling of magnetization in dipolar spin-1 condensates under external fields

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dc.creatorYang, Limin
dc.creatorZhang, Yunbo
dc.date2006-09-09
dc.date.accessioned2026-07-07T07:43:10Z
dc.date.available2026-07-07T07:43:10Z
dc.descriptionWe study the macroscopic quantum tunneling of magnetization of the F=1 spinor condensate interacting through dipole-dipole interaction with an external magnetic field applied along the longitudinal or transverse direction. We show that the ground state energy and the effective magnetic moment of the system exhibit an interesting macroscopic quantum oscillation phenomenon originating from the oscillating dependence of thermodynamic properties of the system on the vacuum angle. Tunneling between two degenerate minima are analyzed by means of an effective potential method and the periodic instanton method.
dc.description2 figures, accepted PRA
dc.identifierhttps://arxiv.org/abs/cond-mat/0609218
dc.identifierhttp://arxiv.org/abs/cond-mat/0609218
dc.identifierPhys. Rev. A74, 043604(6) (2006)
dc.identifierdoi:10.1103/PhysRevA.74.043604
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/122721
dc.subjectOther Condensed Matter
dc.titleQuantum tunneling of magnetization in dipolar spin-1 condensates under external fields
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