Optimal Topological Test for Degeneracies of Real Hamiltonians

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dc.creatorJohansson, Niklas
dc.creatorSjöqvist, Erik
dc.date2003-10-03
dc.date2004-01-09
dc.date.accessioned2026-07-07T06:07:58Z
dc.date.available2026-07-07T06:07:58Z
dc.descriptionWe consider adiabatic transport of eigenstates of real Hamiltonians around loops in parameter space. It is demonstrated that loops that map to nontrivial loops in the space of eigenbases must encircle degeneracies. Examples from Jahn-Teller theory are presented to illustrate the test. We show furthermore that the proposed test is optimal.
dc.descriptionMinor corrections, accepted in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/quant-ph/0310018
dc.identifierhttp://arxiv.org/abs/quant-ph/0310018
dc.identifierPhys. Rev. Lett. 92, 060406 (2004)
dc.identifierdoi:10.1103/PhysRevLett.92.060406
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/91481
dc.subjectQuantum Physics
dc.titleOptimal Topological Test for Degeneracies of Real Hamiltonians
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