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Non-equilibrium dynamics of symmetry breaking and gauge fields in quantum field theory
, 2000 Die vorliegende Arbeit beschäftigt sich mit Nichtgleichgewichtssystemen in der Quantenfeldtheorie. Im ersten Teil wird als einfaches Modell die Phi 4 Theorie untersucht. Es werden verschiedene Approximationen im Detail analysiert und verglichen. Es wird gezeigt, dass eine konsistente Renormierung in der oneloop und der largeNApproximation möglich ...
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, 2009 Dedicated to memory of V. L. Ginzburg (1916-2009). Updates: (v2) chapter on BEC/fluid/gravity correspondence; (v3) comments on BEC-vacuum thermodynamics, induced relativity postulates, Mach's principle, Weyl curvature hypothesis, BEC-vacuum cosmology and origin of fundamental scalar field; (v4) appendix with quantum-informational arguments towards ...
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Magnetic multipoles have been recognized as order parameters characterizing magnetic structure in solids, with magnetic dipole serving as canonical examples in ferromagnets. Recently, magnetic octupoles have been proposed as the order parameters of time-reversal-symmetry breaking centrosymmetric antiferromagnets exhibiting nonrelativistic spin ...
Sato, Takumi, Hayami, Satoru
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Symmetry Breaking in ordinary and supersymmetric Models of Quantum Field Theory
, 2012 This thesis will consider two different theories, and apply variational techniquesto each, in order to investigate their true ground states and the possibility ofsymmetry breaking.A scalar field theory is modified by introducing a variational mass-parameter,which also serves as a regularization.
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Report on quantum simulation of chiral symmetry breaking and fractional excitation patterns in multiflavor Abelian gauge ...
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Einstein gravity as a symmetry-breaking effect in quantum field theory
Reviews of Modern Physics, 1982This article gives a pedagogical review of recent work in which the Einstein-Hilbert gravitational action is obtained as a symmetry-breaking effect in quantum field theory. Particular emphasis is placed on the case of renormalizable field theories with dynamical scale-invariance breaking, in which the induced gravitational effective action is finite ...
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Environment and Symmetry Breaking in Quantum Field Theory
1991In this communication we want to discuss the dynamical effects of the coupling between a quantum system and the environment in the framework of Quantum Field Theory (QFT).
E. Graziano, G. Vitiello
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Breaking Lorentz Symmetry in Quantum Field Theory
2005Symmetry under the Lorentz group is a fundamental assumption of virtually any fundamental theory used to describe elementary particle physics. For instance, the standard model as well as many extensions including supersymmetry and grand unified theories preserve Lorentz symmetry.
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