Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Vošmera, Jakub"'
We consider computing the on-shell disk action of open-closed string field theory as a gauge-invariant way of capturing the shift in D-brane tension that is induced by a deformation of the bulk CFT. We study the effect of bulk matter deformations (bo
Externí odkaz:
http://arxiv.org/abs/2408.00658
We study topological defect lines in the symmetric-product orbifolds $\mathrm{Sym}^N(X)$ for a generic seed CFT $X$. We focus on the defects which preserve the maximum of the $S_N$ symmetry. When $X$ is taken to describe the free theory of four fermi
Externí odkaz:
http://arxiv.org/abs/2406.03467
Astronomy education and outreach are very important when it comes to the future generation's interest in science. The Czech Astronomy Olympiad shows how an educational competition for secondary and high schools can help us drive innovation and promot
Externí odkaz:
http://arxiv.org/abs/2401.12376
Publikováno v:
JHEP 09 (2023) 119
We use the new nilpotent formulation of open-closed string field theory to explore the limit where the number $N$ of identical D-branes of the starting background is large. By reformulating the theory in terms of the 't Hooft coupling $\lambda=\kappa
Externí odkaz:
http://arxiv.org/abs/2305.02844
Publikováno v:
JHEP 08 (2023) 145
In this note we revisit the homotopy-algebraic structure of oriented bosonic open-closed string field theory and we give a new compact formulation in terms of a single cyclic open-closed coderivation which defines a single nilpotent structure describ
Externí odkaz:
http://arxiv.org/abs/2305.02843
Autor:
Maccaferri, Carlo, Vošmera, Jakub
We consider deformations of D-brane systems induced by a change in the closed string background in the framework of bosonic open-closed string field theory, where it is possible to unambiguously tame infrared divergences originating from both open an
Externí odkaz:
http://arxiv.org/abs/2208.00410
Autor:
Vošmera, Jakub
We discuss certain aspects of string field theory and its applications in exploring the land- scape of classical string theory vacua. We start by giving a brief overview of various tree-level string field theories, as well as of some relevant mathema
Externí odkaz:
http://www.nusl.cz/ntk/nusl-437548
String theory on $\text{AdS}_3\times \text{S}^3\times \mathbb{T}^4$ with minimal $k=1$ NS-NS flux can be described in terms of a free field worldsheet theory in the hybrid formalism. We construct various D-branes of this string theory and calculate t
Externí odkaz:
http://arxiv.org/abs/2110.05509