Zobrazeno 1 - 10
of 5 502
pro vyhledávání: '"superstrings"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 12, Pp 1-59 (2024)
Abstract Motivated by a recent construction of non-supersymmetric AdS3, we revisit the O(16) × O(16) heterotic string compactified on a torus. The string one-loop potential energy has interesting dependence on the classical moduli; extrema of this p
Externí odkaz:
https://doaj.org/article/7ec627b2bdc0482a829513c01be765b8
Autor:
Sabarenath Jayaprakash, James T. Liu
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 12, Pp 1-26 (2024)
Abstract Ignoring ten-dimensional heterotic gauge fields, heterotic supergravity reduced on a d-dimensional torus gives rise to a half-maximal supergravity coupled to d vector multiplets. The reduced theory has a continuous O(d, d; ℝ)/O(d)− × O(
Externí odkaz:
https://doaj.org/article/256d706861444b43b7f252a62722eca1
Autor:
Atish Dabholkar, Upamanyu Moitra
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 12, Pp 1-12 (2024)
Abstract We construct ℤ N orbifolds of the ten-dimensional heterotic string theories appropriate for implementing the stringy replica method for the calculation of quantum entanglement entropy. A novel feature for the heterotic string is that the g
Externí odkaz:
https://doaj.org/article/4502423b63ac40869176c7a5ef3b3f2a
Autor:
Tommaso Canneti
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 12, Pp 1-40 (2024)
Abstract We present a closed formula for the asymptotic density of states for a class of solvable superstring models on curved backgrounds. The result accounts for the effects of the curvature of the target space in a concise way.
Externí odkaz:
https://doaj.org/article/78f5fda388b44653b3f2c191b85fee10
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 11, Pp 1-31 (2024)
Abstract We propose a way to describe compactifications of Type II supergravities with fluxes directly from superspace. The on-shell supergravity constraints used are the ones that arise naturally from the pure spinor superstring. We show how previou
Externí odkaz:
https://doaj.org/article/52e1dab969c14e80a0e39cd98420c481
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 11, Pp 1-36 (2024)
Abstract We describe a general formalism based on the partial-wave decomposition to compute the iterative s-channel discontinuity of four-point amplitudes at any loop order. As an application, we focus on the low-energy expansions of type I and II su
Externí odkaz:
https://doaj.org/article/be11aca053384c0aa62dccf95d1ac968
Autor:
Yoav Zigdon
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 11, Pp 1-24 (2024)
Abstract Effective field theories break down inside large black holes on macroscopic scales when tidal forces are string-sized. If r 0 is the horizon radius and α′ is the square of the string scale, the 4D Schwarzschild interior is strongly curved
Externí odkaz:
https://doaj.org/article/63df53dfb103458fa3e7d5dd7190ee9a
Autor:
Carlos R. Mafra
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 11, Pp 1-13 (2024)
Abstract By analogy with the formula for the massless string disk amplitudes, we define massive field-theory tree amplitudes and conjecture that the BRST cohomology structure of pure spinor superspace fixes their form. We give evidence by deriving th
Externí odkaz:
https://doaj.org/article/1ffdc55d00f94730ac584c52bd70f0cd
Autor:
Héctor Parra De Freitas
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 11, Pp 1-32 (2024)
Abstract Non-supersymmetric heterotic strings share various properties with their supersymmetric counterparts. Torus compactifications of the latter live in a component of the moduli space of string vacua with 16 supercharges, and various asymmetric
Externí odkaz:
https://doaj.org/article/734bf4c23db946eb899336ac417cb3e9
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-19 (2024)
Abstract We construct rigid non-supersymmetric heterotic vacua with reduced rank and no tachyons in six and four dimensions. These configurations are based on asymmetric orbifold compactifications which do not admit neutral deformation moduli and rep
Externí odkaz:
https://doaj.org/article/3b83634effe1464daf498c6e4facbf63