16 citations · 38 across the 9 of their papers we have counts for
9 papers
On asymmetric Chern-Simons number diffusion
Bert-Jan Nauta
We show that CP-violation can lead to an asymmetric diffusion of the Chern-Simons number in thermal equilibrium. This asymmetry leads to a linearly growing expectation value of the…
Asymmetric Chern-Simons number diffusion from CP-violation
Bert-Jan Nauta, Alejandro Arrizabalaga
We study Chern-Simons number diffusion in a SU(2)-Higgs model with CP-odd dimension-eight operators. We find that the thermal average of the magnitude of the velocity of the Chern-…
Transversality of the logarithmic divergences in the Classical Finite Temperature SU(N) Self-Energy
A. Arrizabalaga, B. J. Nauta, Ch. G. van Weert
We show that the logarithmic divergences that appear in the classical approximation of the finite temperature SU(N) self-energy are transverse. We use the Ward identities in linear…
Effect of CP-violation on the sphaleron rate
Bert-Jan Nauta
We calculate the effect of two CP-violating (dimension-eight) operators of the SU(2)-Higgs model on the motion along a particular path from the vacuum to the sphaleron. It turns ou…
Divergences in Real-Time Classical Field Theories at Non-Zero Temperature
Gert Aarts, Bert-Jan Nauta, Chris G. van Weert
The classical approximation provides a non-perturbative approach to time-dependent problems in finite temperature field theory. We study the divergences in hot classical field theo…
Counterterms for Linear Divergences in Real-Time Classical Gauge Theories at High Temperature
B. J. Nauta
Real-time classical SU() gauge theories at non-zero temperature contain linear divergences. We introduce counterterms for these divergences in the equations of motion in the con…
Effective Classical Theory for Real-Time SU(N) Gauge Theories at High Temperature
B. J. Nauta, Ch. G. van Weert
We derive an effective classical theory for real-time SU() gauge theories at high temperature. By separating off and integrating out quantum fluctuations we obtain a 3D classica…
Real-Time Dimensional Reduction in Thermal Field Theory
Bert-Jan Nauta, Chris van Weert
We consider the extension of static dimensional reduction to real-time. For a scalar field theory it is shown that in the high-temperature limit this leads to an effective classica…
Real-time contour propagator for high temperature dimensional reduction
B. J. Nauta, Ch. G. van Weert
We discuss the extension of dimensional reduction in thermal field theory at high temperature to real-time correlation functions. It is shown that the perturbative corrections to t…