Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Jan Troost"'
Autor:
Sujay K. Ashok, Jan Troost
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-20 (2024)
Abstract We revisit the flavored elliptic genus of the N=2 superconformal cigar model and generalize the analysis of the path integral result to the case of real central charge. It gives rise to a non-holomorphic modular covariant function generalizi
Externí odkaz:
https://doaj.org/article/3727744a5c6e4f02a59a05ae64564f73
Autor:
Sujay K. Ashok, Jan Troost
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 4, Pp 1-48 (2024)
Abstract We compute the structure constants of topological symmetric orbifold theories up to third order in the large N expansion. The leading order structure constants are dominated by topological metric contractions. The first order interactions ar
Externí odkaz:
https://doaj.org/article/d27476ccff744ca9a5271efb29d19e02
Autor:
Lior Benizri, Jan Troost
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 9, Pp 1-28 (2023)
Abstract We identify an ambiguity in the Chern-Simons formulation of three-dimensional gravity with negative cosmological constant that originates in an outer automorphism of the Lie algebra sl $$ \mathfrak{sl} $$ (2, ℝ). It has important consequen
Externí odkaz:
https://doaj.org/article/3f0f4e9e08684d3aadbf8cf375568985
Autor:
Sujay K. Ashok, Jan Troost
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 8, Pp 1-34 (2023)
Abstract We analyze the chiral operator ring of the symmetric orbifold conformal field theory on the complex two-plane ℂ2. We compute the large N limit of the ring and exhibit its factorized leading order behaviour. We moreover calculate all struct
Externí odkaz:
https://doaj.org/article/80651167544e4604a37287fd76e2c00e
Autor:
Sujay K. Ashok, Jan Troost
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 10, Pp 1-18 (2022)
Abstract We revisit the classical dynamics of fundamental strings in BTZ black holes with NSNS flux. We analyze probe strings in the black hole background and determine their classical energy using a Nambu–Goto action. Three-dimensional gravity has
Externí odkaz:
https://doaj.org/article/4a89a02dea854cc4904f23ddc1d475e6
Autor:
Sujay K. Ashok, Jan Troost
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 9, Pp 1-33 (2022)
Abstract We compute the path integral for a particle on the covering group of SL(2, ℝ) using a decomposition of the Lie algebra into adjoint orbits. We thus intuitively derive the Hilbert space of the particle on the group including discrete and co
Externí odkaz:
https://doaj.org/article/1c3bbd7dc0fd47d8a498afff09e0ee31
Autor:
Jan Troost
Publikováno v:
Physics Letters B, Vol 838, Iss , Pp 137665- (2023)
We solve two-dimensional gravity on surfaces with boundary in terms of contact interactions and surface degenerations. The known solution of the bulk theory in terms of a contact algebra is generalized to include boundaries and an enlarged set of bou
Externí odkaz:
https://doaj.org/article/4c996d315a3946ed80c5537feb9d3e48
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-46 (2021)
Abstract We study AdS 3 × S 1 × Y supersymmetric string theory backgrounds with Neveu-Schwarz-Neveu-Schwarz flux that are dual to N $$ \mathcal{N} $$ = 2 superconformal theories on the boundary. We classify all worldsheet vertex operators that corr
Externí odkaz:
https://doaj.org/article/d2ac2e804a944b9abcf6536979b39ee2
Autor:
Sujay K. Ashok, Jan Troost
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-21 (2021)
Abstract We study finite temperature string scale AdS 3 backgrounds. One background is AdS 3 × S 1 × T 2 in which the anti-de Sitter space-time and the circle are at the radius α ′ $$ \sqrt{\alpha^{\prime }} $$ . Using path integral techniques,
Externí odkaz:
https://doaj.org/article/a84fdf3721f1485b95cc87ac678204ee
Autor:
Sujay K. Ashok, Jan Troost
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-58 (2021)
Abstract We revisit the calculation of the thermal free energy for string theory in three-dimensional anti-de Sitter spacetime with Neveu-Schwarz-Neveu-Schwarz flux. The path integral calculation is exploited to confirm the off-shell Hilbert space an
Externí odkaz:
https://doaj.org/article/70ae3589787e4a1e98657f7f744fd4d5