Causal signal transmission by quantum fields. II. Quantum-statistical response of interacting bosons

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dc.creatorPlimak, L. I.
dc.creatorStenholm, S.
dc.date2008-04-25
dc.date.accessioned2026-07-07T11:50:14Z
dc.date.available2026-07-07T11:50:14Z
dc.descriptionWe analyse nonperturbatively signal transmission patterns in Green's functions of interacting quantum fields. Quantum field theory is re-formulated in terms of the nonlinear quantum-statistical response of the field. This formulation applies equally to interacting relativistic fields and nonrelativistic models. Of crucial importance is that all causality properties to be expected of a response formulation indeed hold. Being by construction equivalent to Schwinger's closed-time-loop formalism, this formulation is also shown to be related naturally to both Kubo's linear response and Glauber's macroscopic photodetection theories, being a unification of the two with generalisation to the nonlinear quantum-statistical response problem. In this paper we introduce response formulation of bosons; response reformulation of fermions will be subject of a separate paper.
dc.descriptionAccepted to Annals of Physics
dc.identifierhttps://arxiv.org/abs/0804.4091
dc.identifierhttp://arxiv.org/abs/0804.4091
dc.identifierAnnalsPhys.323:1989-2017,2008
dc.identifierdoi:10.1016/j.aop.2007.11.014
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203500
dc.subjectQuantum Physics
dc.subjectStatistical Mechanics
dc.subjectMathematical Physics
dc.titleCausal signal transmission by quantum fields. II. Quantum-statistical response of interacting bosons
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