High-temperature field theory in curved spacetime
نویسندگان
چکیده
منابع مشابه
Quantum Field Theory in Curved Spacetime
We review the mathematically rigorous formulation of the quantum theory of a linear field propagating in a globally hyperbolic spacetime. This formulation is accomplished via the algebraic approach, which, in essence, simultaneously admits all states in all possible (unitarily inequivalent) Hilbert space constructions. The physically nonsingular states are restricted by the requirement that the...
متن کامل-expansion in Quantum Field Theory in Curved Spacetime
We discuss -expansion in curved space-time for asymptotically free and asymptotically non-free theories. The existence of stable and unstable xed points is investigated for f 4 theory and SU(2) gauge theory. It is shown that -expansion maybe compatible with asymptotic freedom on special solutions of the RG equations in a special case (supersymmetric theory). Using -expansion RG technique the e ...
متن کاملǫ-EXPANSION IN QUANTUM FIELD THEORY IN CURVED SPACETIME
We discuss ǫ-expansion in curved space-time for asymptotically free and asymptotically non-free theories. The existence of stable and unstable fixed points is investigated for fφ4 theory and SU(2) gauge theory. It is shown that ǫ-expansion maybe compatible with asymptotic freedom on special solutions of the RG equations in a special case (supersymmetric theory). Using ǫ-expansion RG technique t...
متن کاملQuantum Field Theory on Curved Backgrounds. II. Spacetime Symmetries
We study space-time symmetries in scalar quantum field theory on an arbitrary static space-time. We first consider Euclidean quantum field theory, and show that the isometry group is generated by one-parameter subgroups which have either selfadjoint or unitary quantizations. We then show that the self-adjoint semigroups thus constructed can be analytically continued to one-parameter unitary gro...
متن کاملTemperature Notion in a Curved Spacetime
Scalar radiation, represented by a massless scalar field in a Robertson-Walker metric, is taken into account. By using a weak non minimum vacuum definition, the radiation temperature as a time dependent function is obtained. When the universe evolution is nearly but non equal to t, it is possible to fit the temperature of the microwave background. A particular massive case is compared with the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1995
ISSN: 0550-3213
DOI: 10.1016/0550-3213(94)00581-x