Электронная библиотека (репозиторий) Томского государственного университета
Vassilevich, Dmitri V.

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Source: Physical Review D. 2022. Vol. 105, № 10. P. 106016-1-106016-10
Type: статьи в журналах
Date: 2022
Description: The dilaton gravity models in two dimensions, including the Jackiw-Teitelboim model and its deformations, are particular cases of Poisson sigma models. Target space diffeomorphisms map one Poisson sig ... More
Source: Journal of high energy physics. 2021. Vol. 9. P. 182 (1-30)
Type: статьи в журналах
Date: 2021
Description: Having in mind extensions of 2D holography beyond the Jackiw-Teitelboim model we propose holographic counterterms and asymptotic conditions for a family of asymptotically AdS2 dilaton gravity models l ... More
Source: Physical Review B. 2021. Vol. 104, № 19. P. 195431-1-195431-10
Type: статьи в журналах
Date: 2021
Description: Exploiting methods of quantum field theory we compute the bulk polarization tensor and bulk dielectric functions for Dirac materials in the presence of a mass gap, chemical potential, and finite tempe ... More
Source: Physical Review D. 2021. Vol. 103, № 12. P. 125015-1-125015-7
Type: статьи в журналах
Date: 2021
Description: We compute the vacuum fermion current in the (2 + 1) dimensional Jackiw-Rossi model by using the 1/m expansion. The current is expressed through a weighted η-function with a matrix weight. In the pres ... More
Source: Journal of physics A: Mathematical and theoretical. 2020. Vol. 53, № 30. P. 305201 (1-12)
Type: статьи в журналах
Date: 2020
Description: We consider the index of a Dirac operator on a compact even dimensional manifold with a domain wall. The latter is defined as a co-dimension one submanifold where the connection jumps. We formulate an ... More
Source: Symmetry. 2020. Vol. 12, № 5. P. 869 (1-8)
Type: статьи в журналах
Date: 2020
Description: We show that quasiparticles in Weyl semimetals may decay with emission of a single photon. We study the spectrum of emitted photons and estimate the decay rates.
Source: Physical Review D. 2020. Vol. 101, № 8. P. 086024-1-086024-8
Type: статьи в журналах
Date: 2020
Description: We provide the first steps toward a flat space holographic correspondence in two bulk spacetime dimensions. The gravity side is described by a conformally transformed version of the matterless Callan- ... More
Source: Physical Review Letters. 2020. Vol. 124, № 17. P. 176802-1-176802-5
Type: статьи в журналах
Date: 2020
Description: We present full expressions for the surface part of polarization tensor of a Dirac fermion confined in a half-space in 3+1 dimensions. We compare this tensor to the polarization tensor of eventual sur ... More
Source: Modern physics letters A. 2020. Vol. 35, № 3. P. 2040017-1-2040017-8
Type: статьи в журналах
Date: 2020
Description: We critically review the possibilities of a repulsive Casimir interaction between materials
Source: Physics Letters B. 2019. Vol. 797. P. 134935 (1-4)
Type: статьи в журналах
Date: 2019
Description: In this letter the fractional fermion number of thick domain walls is computed. The analysis is achieved by developing the heat kernel expansion of the spectral eta function of the Dirac Hamiltonian g ... More
Source: Physical Review D. 2019. Vol. 100, № 4. P. 045026-1-045026-13
Type: статьи в журналах
Date: 2019
Description: We study the polarization tensor of a Dirac field in (3 þ 1) dimensions confined to a half-space—a problem motivated by applications to the condensed matter physics, and to topological insulators in p ... More
Source: The European physical journal C. 2019. Vol. 79, № 6. P. 525 (1-11)
Type: статьи в журналах
Date: 2019
Description: We consider different methods of calculating the (fractional) fermion number of solitons based on the heat kernel expansion. We derive a formula for the localized η function that provides a more syste ... More
Source: Journal of high energy physics. 2018. № 3. P. 072 (1-16)
Type: статьи в журналах
Date: 2018
Description: In this paper we consider gravitational parity anomaly in three and four dimensions. We start with a re-computation of this anomaly on a 3D manifold without boundaries and with a critical comparison o ... More
Source: Letters in mathematical physics. 2018. Vol. 108, № 10. P. 2293-2301
Type: статьи в журналах
Date: 2018
Description: We study several classes of non-associative algebras as possible candidates for deformation quantization in the direction of a Poisson bracket that does not satisfy Jacobi identities. We show that in ... More
Source: Physical Review B. 2018. Vol. 97, № 16. P. 165432-1-165432-11
Type: статьи в журналах
Date: 2018
Description: In this paper we critically reconsider the Casimir repulsion between surfaces that carry the Chern-Simons interaction (corresponding to the Hall type conductivity). We present a derivation of the Lifs ... More
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