Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Peter M. Lavrov"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 8, Pp 1-9 (2019)
Abstract Using the background field method for the functional renormalization group approach in the case of a generic gauge theory, we study the background field symmetry and gauge dependence of the background average effective action, when the regul
Externí odkaz:
https://doaj.org/article/fbd3fb5d5c0b4f0baf5cf68e7810483b
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 7, Pp 1-17 (2019)
Abstract In the paper, within the background field method, the renormalization and the gauge dependence is studied as for an SU(2) Yang–Mills theory with multiplets of spinor and scalar fields. By extending the quantum action of the BV-formalism wi
Externí odkaz:
https://doaj.org/article/07461df13d5641eb95460e5a109f251e
Autor:
Peter M. Lavrov
Publikováno v:
Physics Letters B, Vol 791, Iss , Pp 293-298 (2019)
It is shown that the gauge invariance and gauge dependence properties of effective action for Yang-Mills theories should be considered as two independent issues in the background field formalism. Application of this formalism to formulate the functio
Externí odkaz:
https://doaj.org/article/14fe1162f5b14fd1bf014a8488c17e73
Autor:
Peter M. Lavrov
Publikováno v:
Nuclear Physics B, Vol 957, Iss , Pp 115107- (2020)
The gauge dependence problem of alternative flow equation for the functional renormalization group is studied. It is shown that the effective two-particle irreducible effective action depends on gauges at any value of IR parameter k. The situation wi
Externí odkaz:
https://doaj.org/article/09f420339d0e446cbf9696b604f91b2a
Autor:
Peter M. Lavrov
Publikováno v:
Physics Letters B, Vol 803, Iss , Pp - (2020)
In present paper a quantization scheme proposed recently by Morris (arXiv:1806.02206 [hep-th]) is analyzed. This method is based on idea to combine the renormalization group with the BV-formalism in a unique quantization procedure. It is shown that t
Externí odkaz:
https://doaj.org/article/9f88e666babf41af82d40e59878317a5
Autor:
Igor A. Batalin, Peter M. Lavrov
Publikováno v:
Physics Letters B, Vol 787, Iss , Pp 89-93 (2018)
We reformulate in a systematic way the conversional approach in its most general and compact form. We present a new definition of generalized Dirac bracket directly in terms of the super-observables commuting with the basic BFV-BRST charge. Keywords:
Externí odkaz:
https://doaj.org/article/693124757ddb40548dd7b062d0d23225
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 7, Pp 1-16 (2018)
Abstract In the paper, within the background field method, the structure of renormalizations is studied as for Yang–Mills fields interacting with a multiplet of spinor fields. By extending the Faddeev–Popov action with extra fields and parameters
Externí odkaz:
https://doaj.org/article/4c417c330e31498ca83c6e39b0f616cb
Autor:
Igor A. Batalin, Peter M. Lavrov
Publikováno v:
Physics Letters B, Vol 767, Iss C, Pp 99-102 (2017)
For topological sigma models, we propose that their local Lagrangian density is allowed to depend non-linearly on the de Rham's “velocities” DZA. Then, by differentiating the Lagrangian density with respect to the latter de Rham's “velocities
Externí odkaz:
https://doaj.org/article/ec5741e6548941c381a1b96628ce4650
Publikováno v:
Physics Letters B, Vol 797, Iss , Pp - (2019)
We present a reformulation of the background field method for Yang-Mills type theories, based on using a superalgebra of generators of BRST and background field transformations. The new approach enables one to implement and consistently use non-linea
Externí odkaz:
https://doaj.org/article/d74f599d45ab41198d9a683d02c4c12c
Autor:
Igor A. Batalin, Peter M. Lavrov
Publikováno v:
Physics Letters B, Vol 758, Iss C, Pp 54-58 (2016)
In the most general case of the Delta exact operator valued generators constructed of an arbitrary Fermion operator, we present a closed solution for the transformed master action in terms of the original master action in the closed form of the corre
Externí odkaz:
https://doaj.org/article/5c883d119f3b4cce908200504f4a755f