Markov loops and renormalization
نویسندگان
چکیده
منابع مشابه
Markov loops and renormalization
We study the Poissonnian ensembles of Markov loops and the associated renormalized self intersection local times..
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Using Dyson–Schwinger equations, the nucleon propagator is analyzed nonperturbatively in a field–theoretical model for the pion–nucleon interaction. Infinities are circumvented by using pion–nucleon form factors which define the physical scale. It is shown that the correct, finite, on–shell nucleon renormalization is important for the value of the mass–shift and the propagator. For physically a...
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We investigate the relations between the Poissonnian loop ensembles, their occupation fields, non ramified Galois coverings of a graph, the associated gauge fields, and random Eulerian networks.
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Heavy Quark Effective Theory (HQET) is an effective field theory approximating QCD for problems with a single heavy quark when characteristic momenta are much less than its mass m, see the textbook [1]. A method of calculation of two-loop propagator diagrams in HQET based on integration by parts [2] has been constructed in [3]. It has been extended to three loops in [4]. Methods of perturbative...
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We study the Poissonnian ensembles of Markov loops and the associated renormalized self intersection local times.
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ژورنال
عنوان ژورنال: The Annals of Probability
سال: 2010
ISSN: 0091-1798
DOI: 10.1214/09-aop509