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Quantum renormalization group

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 12 Jan 2016Embargo end date: 01 Jan 2015 France, Hungary Publisher:American Physical Society (APS)Journal:Physical Review D, volume 93 (issn: 2470-0010, eissn: 2470-0029, Copyright policy )
Authors: Nagy, Sándor; Polónyi, János; Steib, Imola;

doi: 10.1103/physrevd.93.025008 , 10.48550/arxiv.1508.04277

arXiv: http://arxiv.org/abs/1508.04277

Quantum renormalization group

Abstract

The observed IR and the spectator UV particles of a regulated, cutoff quantum field theory are entangled by their interactions; hence, the IR sector can be described by the help of the density matrix only. The tree-level renormalized trajectory is obtained for a self-interacting scalar field theory, containing the mixed state contributions. One needs a sharp cutoff in the momentum space as regulator to realize the true loss of information, caused by massive particles.

Extended, final version, to appear in Phys. Rev. D

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France, Hungary
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Keywords

High Energy Physics - Theory, [PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th], FOS: Physical sciences, spectator, QC05 Physical nature of matter / részecskefizika, field theory: scalar, High Energy Physics - Theory (hep-th), QC Physics / fizika, tree approximation, renormalization group, entanglement, density matrix

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    		 12
    popularity
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
12
Top 10%
Average
Top 10%
Green