Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Fedor A. Popov"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-50 (2024)
Abstract We study the operator algebra of extended conformal defects in more than two spacetime dimensions. Such algebra structure encodes the combined effect of multiple impurities on physical observables at long distances as well as the interaction
Externí odkaz:
https://doaj.org/article/14f7264fc0da45b6b2ca437302ca3b33
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-61 (2024)
Abstract We investigate finite-temperature observables in three-dimensional large N critical vector models taking into account the effects suppressed by 1 N $$ \frac{1}{N} $$ . Such subleading contributions are captured by the fluctuations of the Hub
Externí odkaz:
https://doaj.org/article/8723d29aff324c94b228af49adb0e4dc
Autor:
Ahmed Almheiri, Fedor K. Popov
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-30 (2024)
Abstract Motivated by recent study of DSSYK and the non-commutative nature of its bulk dual, we review and analyze an example of a non-commutative spacetime known as the quantum disk proposed by L. Vaksman. The quantum disk is defined as the space wh
Externí odkaz:
https://doaj.org/article/439aa8630e64474d8b96edd3dbc96852
Publikováno v:
SciPost Physics, Vol 17, Iss 1, p 020 (2024)
We demonstrate that some quantum teleportation protocols exhibit measurement induced phase transitions in Sachdev-Ye-Kitaev model. Namely, Kitaev-Yoshida and Gao-Jafferis-Wall protocols have a phase transition if we apply them at a large projection r
Externí odkaz:
https://doaj.org/article/c544644c1744431d96ab4bc0d5245c5b
Autor:
Fedor K. Popov, Yifan Wang
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 11, Pp 1-38 (2022)
Abstract The Klebanov-Tarnopolsky tensor model is a quantum field theory for rank-three tensor scalar fields with certain quartic potential. The theory possesses an unusual large N limit known as the melonic limit that is strongly coupled yet solvabl
Externí odkaz:
https://doaj.org/article/aac4c036145947aba748e0b5600fb540
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043208 (2023)
In some quantum many-body systems, the Hilbert space breaks up into a large ergodic sector and a much smaller scar subspace. It has been suggested [K. Pakrouski et al., Phys. Rev. Lett. 125, 230602 (2020)0031-900710.1103/PhysRevLett.125.230602] that
Externí odkaz:
https://doaj.org/article/180c1abb5a7c49048910b5c75398c843
Autor:
Fedor K. Popov, Grigory Tarnopolsky
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043079 (2023)
We consider a configuration of three stacked graphene monolayers with commensurate twist angles θ_{12}/θ_{23}=p/q, where p and q are coprime integers with 0
Externí odkaz:
https://doaj.org/article/b1025a2931f5406a9c48c3028c5d6bfa
Autor:
Fedor K. Popov
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 6, Pp 1-19 (2018)
Abstract We calculate the one-loop contributions to the polarization operator for scalar quantum electrodynamics in different external electromagnetic and gravitational fields. In the case of gravity, de Sitter space and its different patches were co
Externí odkaz:
https://doaj.org/article/38e6d263efd9447299303fd852827c20
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 3, Pp 1-19 (2018)
Abstract We study the one-loop corrections to the four-point function in the Anti de Sitter space-time for a ϕ 4 field theory. Our calculation shows the existence of non-local counterterms which however respect the AdS isometry. Our arguments are qu
Externí odkaz:
https://doaj.org/article/a0b8a6a12c7b4c6eae2cccbe7dab51d9
Autor:
Fedor K. Popov
Publikováno v:
Physical Review
We consider $1+1$ dimensional Yang-Mills theory with gauge group $G$ coupled to a massive Majorana fermion field in an adjoint representation and a number of massless Dirac or Majorana fermions transforming in arbitrary representations of the gauge g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7db0b4f60062d6de8acac23dd643109e
https://doi.org/10.1103/physrevd.105.074005
https://doi.org/10.1103/physrevd.105.074005