Results 1 to 10 of about 858,174 (293)

Perturbative Non-Equilibrium Thermal Field Theory [PDF]

open access: yesPhysical Review D, 2013
We present a new perturbative formulation of non-equilibrium thermal field theory, based upon non-homogeneous free propagators and time-dependent vertices.
Millington, Peter, Pilaftsis, Apostolos
core   +4 more sources

Leontovich Relations in Thermal Field Theory [PDF]

open access: yesThe European Physical Journal C, 2000
The application of generalized Kramers-Kronig relations, the so-called Leontovich relations, to thermal field theory is discussed. Medium effects contained in the full, thermal propagators can easily be taken into account by this method.
Thoma, Markus H.
core   +5 more sources

Thermal Renormalons in Scalar Field Theory [PDF]

open access: yesModern Physics Letters A, 1999
In the frame of the scalar theory $g \phi ^{4}$, we explore the occurrence of thermal renormalons, i. e. temperature dependent singularities in the Borel plane.
C. VALENZUELA, Fujimoto Y., M. LOEWE
core   +7 more sources

Thermal Field Theory and Infinite Statistics [PDF]

open access: yesNuclear Physics B, 1992
We construct a quantum thermal field theory for scalar particles in the case of infinite statistics. The extension is provided by working out the Fock space realization of a "quantum algebra", and by identifying the hamiltonian as the energy operator. We
Altherr   +39 more
core   +2 more sources

Bose-Einstein correlations in thermal field theory [PDF]

open access: yesActa Physica Hungarica A) Heavy Ion Physics, 1995
Two-particle correlation functions are calculated for bosons emitted from a localized thermal source (the ``glow'' of a ``hot spot''). In contrast to existing work, non-equilibrium effects up to first order in gradients of the particle distribution ...
Blasone, M.   +3 more
core   +5 more sources

Advances in perturbative thermal field theory [PDF]

open access: yesReports on Progress in Physics, 2003
The progress of the last decade in perturbative quantum field theory at high temperature and density made possible by the use of effective field theories and hard-thermal/dense-loop resummations in ultrarelativistic gauge theories is reviewed.
A Rebhan   +68 more
core   +3 more sources

Frozen ghosts in thermal gauge field theory [PDF]

open access: yes, 2009
We review an alternative formulation of gauge field theories at finite temperature where unphysical degrees of freedom of gauge fields and the Faddeev-Popov ghosts are kept at zero temperature.Comment: 6 ...
Landshoff, P. V., Rebhan, A.
core   +2 more sources

Nuclearity and Thermal States in Conformal Field Theory [PDF]

open access: yesCommunications in Mathematical Physics, 2006
We introduce a new type of spectral density condition, that we call L^2-nuclearity. One formulation concerns lowest weight unitary representations of SL(2,R) and turns out to be equivalent to the existence of characters.
B. Schroer   +28 more
core   +6 more sources

Interplay between improved interaction rates and modified cosmological histories for dark matter

open access: yesFrontiers in Physics, 2023
A novel particle has been and still is an intriguing option to explain the strong evidence for dark matter in our universe. To quantitatively predict the dark matter energy density, two main ingredients are needed: interaction rates and the history of ...
Simone Biondini
doaj   +1 more source

Feynman rules for forced wave turbulence

open access: yesJournal of High Energy Physics, 2023
It has long been known that weakly nonlinear field theories can have a late-time stationary state that is not the thermal state, but a wave turbulent state with a far-from-equilibrium cascade of energy.
Vladimir Rosenhaus, Michael Smolkin
doaj   +1 more source

Home - About - Disclaimer - Privacy