Results 41 to 50 of about 5,150 (161)

Renormalization of nonequilibrium dynamics at large N and finite temperature [PDF]

, 1997
We generalize a previously proposed renormalization and computation scheme for nonequilibrium dynamics to include finite temperature and one-loop selfconsistency as arising in the large-N limit.
A. Ringwald, A. Ringwald, C. G. Callan, Carsten Pätzold, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. I. Kaiser, D. I. Kaiser, D. T. Son, E. Calzetta, E. Calzetta, F. Cooper, F. Cooper, F. Cooper, H. J. de Vega, J. Baacke, J. Baacke, J. Baacke, J. Schwinger, Jürgen Baacke, Katrin Heitmann, L. Kofman, L. V. Keldysh, M. A. Lampert, P. B. Greene, S. A. Ramsey, S. Y. Khlebnikov, S. Y. Khlebnikov, W. H. Zurek   +33 more
core   +2 more sources

Green's function method for handling radiative effects on false vacuum decay

, 2015
We introduce a Green's function method for handling radiative effects on false vacuum decay. In addition to the usual thin-wall approximation, we achieve further simplification by treating the bubble wall in the planar limit.
Garbrecht, Bjorn, Millington, Peter
core   +1 more source

The effects of overwithholding and retroactive savings options on retirement savings: An experimental analysis

Contemporary Accounting Research, Volume 42, Issue 3, Page 1899-1928, Fall 2025.
Abstract In three experiments, we examine how the widespread phenomenon of overwithholding affects retirement savings and how the additional option at tax time of saving retroactively for retirement affects total savings levels. Our results show that overwithholding significantly reduces retirement savings. We show that this outcome can be explained by
Kay Blaufus, Michael Milde, Marcel Schaefer   +2 more
wiley   +1 more source

Medienkompetenz aus bildungswissenschaftlicher, bildungspolitischer und schulpraktischer Perspektive

MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung, 2023
Dass digitale Medien nahezu alle Lebensbereiche durchdringen, ist mittlerweile ein Gemeinplatz. Die mediale Omnipräsenz macht den Umgang mit Technologien bedeutend, weshalb es gerade im Bildungskontext elementar erscheint, Medienkompetenz (MK) zu ...
Francine Meyer, Janina Becker, Annekatrin Bock   +2 more
doaj   +1 more source

Nonequilibrium evolution of Phi**4 theory in 1+1 dimensions in the 2PPI formalism [PDF]

, 2002
We consider the out-of-equilibrium evolution of a classical condensate field and its quantum fluctuations for a Phi**4 model in 1+1 dimensions with a symmetric and a double well potential. We use the 2PPI formalism and go beyond the Hartree approximation
A. Okopinska, Andreas Heinen, B. Mihaila, C. Destri, D. Boyanovsky, D. Boyanovsky, D. Dudal, E. Calzetta, E. Calzetta, F. Cooper, F. Cooper, F. Cooper, F. Cooper, G. Aarts, G. Aarts, G. Smet, G. Zhou, H. van Hees, H. van Hees, H. van Hees, H. Verschelde, H. Verschelde, H. Verschelde, J. Baacke, J. Baacke, J. Baacke, J. Berges, J. Berges, J. H. Traschen, J. M. Cornwall, J. S. Schwinger, Jürgen Baacke, K. Blagoev, L. Kofman, L. V. Keldysh, M. Coppens, V. P. Maslov   +36 more
core   +2 more sources

Medienpädagogik als Sozialtechnologie im digital-kybernetischen Kapitalismus? Kybernetik, Systemtheorie und Gesellschaftskritik in Dieter Baackes Kommunikation und Kompetenz

MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung, 2017
Ausgehend von Dieter Baackes Habilitationsschrift «Kommunikation und Kompetenz» (1972/1973) werden in diesem Artikel die Forschungsergebnisse eines Close Readings von Baackes Diskursbegründung der Medienpädagogik präsentiert, das seine Theoriebildung ...
Alessandro Barberi
doaj   +1 more source

The 2PI finite temperature effective potential of the O(N) linear sigma model in 1+1 dimensions, at next-to-leading order in 1/N

, 2004
We study the O(N) linear sigma model in 1+1 dimensions. We use the 2PI formalism of Cornwall, Jackiw and Tomboulis in order to evaluate the effective potential at finite temperature. At next-to-leading order in a 1/N expansion one has to include the sums
D. A. Kirzhnits, G. Aarts, Jürgen Baacke, M. Coppens, S. R. Coleman, Stefan Michalski   +5 more
core   +1 more source

Optimum maintenance units in multi‐indenture systems

Quality and Reliability Engineering International, Volume 40, Issue 5, Page 2792-2821, July 2024.
Abstract This paper deals with an optimization problem of determining the maintenance units and age‐based inspection schemes to minimize the expected maintenance cost rate and satisfy a target system availability for multi‐indenture systems that have a modular structure with redundant units.
Qian Qian Zhao, Jae Yoon Yoo, Tadashi Dohi, Won Young Yun   +3 more
wiley   +1 more source

Nonequilibrium dynamics: a renormalized computation scheme

, 1998
We present a regularized and renormalized version of the one-loop nonlinear relaxation equations that determine the non-equilibrium time evolution of a classical (constant) field coupled to its quantum fluctuations.
A. Albrecht, C. G. Callan, Carsten Pätzold, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, E. Calzetta, F. Cooper, H. R. Schwarz, J. Baacke, J. Baacke, J. Baacke, J. Baacke, Jürgen Baacke, K. Farakos, K. Farakos, Katrin Heitmann, L. F. Abbott, S. M. Christensen, S. Weinberg, W. Buchmüller, Y. Kluger   +22 more
core   +1 more source

Nonequilibrium dynamics in scalar hybrid models

, 2004
We study by numerical simulations the transition from the metastable "false vacuum" to the broken symmetry phase in the preheating stage after cosmic inflation in a scalar hybrid model. We take quantum fluctuations and their back reaction into account by
Baacke, Jurgen, Heinen, Andreas
core   +2 more sources