Abstract
We describe scalar quantum electrodynamics by a gauge-invariant effective average action {Gamma}{sub k}. This obtains by integrating out the quantum fluctuations with ``momenta`` larger than k in a gauge-invariant way. Our method can deal successfully with the infrared problems of perturbation theory in less than four dimensions or at high temperature. The dependence of {Gamma}{sub k} on the infrared cutoff k is given by an exact evolution equation. (orig.)
Reuter, M;
[1]
Wetterich, C
[2]
- Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
- Heidelberg Univ. (Germany). Inst. fuer Theoretische Physik
Citation Formats
Reuter, M, and Wetterich, C.
Exact evolution equation for scalar electrodynamics.
Germany: N. p.,
1994.
Web.
Reuter, M, & Wetterich, C.
Exact evolution equation for scalar electrodynamics.
Germany.
Reuter, M, and Wetterich, C.
1994.
"Exact evolution equation for scalar electrodynamics."
Germany.
@misc{etde_10153237,
title = {Exact evolution equation for scalar electrodynamics}
author = {Reuter, M, and Wetterich, C}
abstractNote = {We describe scalar quantum electrodynamics by a gauge-invariant effective average action {Gamma}{sub k}. This obtains by integrating out the quantum fluctuations with ``momenta`` larger than k in a gauge-invariant way. Our method can deal successfully with the infrared problems of perturbation theory in less than four dimensions or at high temperature. The dependence of {Gamma}{sub k} on the infrared cutoff k is given by an exact evolution equation. (orig.)}
place = {Germany}
year = {1994}
month = {Feb}
}
title = {Exact evolution equation for scalar electrodynamics}
author = {Reuter, M, and Wetterich, C}
abstractNote = {We describe scalar quantum electrodynamics by a gauge-invariant effective average action {Gamma}{sub k}. This obtains by integrating out the quantum fluctuations with ``momenta`` larger than k in a gauge-invariant way. Our method can deal successfully with the infrared problems of perturbation theory in less than four dimensions or at high temperature. The dependence of {Gamma}{sub k} on the infrared cutoff k is given by an exact evolution equation. (orig.)}
place = {Germany}
year = {1994}
month = {Feb}
}