Thouless theorem for one and two degrees of freedom
We perform an accessible demonstration of Thouless theorem for systems of one and two degrees of freedom, using only elementary quantum mechanics. This theorem is specially useful to ¯nd the vacuum of a transformed set of bosonic operators. A further motivation comes from experiments involving few trapped ions or ¯elds in cavity quantum electrodynamics, usually modelled by few linearly interacting oscillators.
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Sociedade Brasileira de Física
2006
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oai:scielo:S1806-111720060002000072006-10-16Thouless theorem for one and two degrees of freedomMagalhães,A.R. Bosco deFonseca,C.H. d'ÀvilaNemes,M.C. quantum oscillators variables transformations bosonic systems We perform an accessible demonstration of Thouless theorem for systems of one and two degrees of freedom, using only elementary quantum mechanics. This theorem is specially useful to ¯nd the vacuum of a transformed set of bosonic operators. A further motivation comes from experiments involving few trapped ions or ¯elds in cavity quantum electrodynamics, usually modelled by few linearly interacting oscillators.info:eu-repo/semantics/openAccessSociedade Brasileira de FísicaRevista Brasileira de Ensino de Física v.28 n.2 20062006-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172006000200007en |
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Magalhães,A.R. Bosco de Fonseca,C.H. d'Àvila Nemes,M.C. |
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Magalhães,A.R. Bosco de Fonseca,C.H. d'Àvila Nemes,M.C. Thouless theorem for one and two degrees of freedom |
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Magalhães,A.R. Bosco de Fonseca,C.H. d'Àvila Nemes,M.C. |
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Magalhães,A.R. Bosco de |
title |
Thouless theorem for one and two degrees of freedom |
title_short |
Thouless theorem for one and two degrees of freedom |
title_full |
Thouless theorem for one and two degrees of freedom |
title_fullStr |
Thouless theorem for one and two degrees of freedom |
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Thouless theorem for one and two degrees of freedom |
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thouless theorem for one and two degrees of freedom |
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We perform an accessible demonstration of Thouless theorem for systems of one and two degrees of freedom, using only elementary quantum mechanics. This theorem is specially useful to ¯nd the vacuum of a transformed set of bosonic operators. A further motivation comes from experiments involving few trapped ions or ¯elds in cavity quantum electrodynamics, usually modelled by few linearly interacting oscillators. |
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Sociedade Brasileira de Física |
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2006 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172006000200007 |
work_keys_str_mv |
AT magalhaesarboscode thoulesstheoremforoneandtwodegreesoffreedom AT fonsecachdavila thoulesstheoremforoneandtwodegreesoffreedom AT nemesmc thoulesstheoremforoneandtwodegreesoffreedom |
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