Results 21 to 30 of about 808 (166)

Gauge supergravity in D = 2 + 2

open access: yesJournal of High Energy Physics, 2017
We present an action for chiral N = (1, 0) supergravity in 2 + 2 dimensions. The fields of the theory are organized into an OSp(1|4) connection supermatrix, and are given by the usual vierbein V a , spin connection ω ab , and Majorana gravitino ψ.
Leonardo Castellani
doaj   +1 more source

The LVS parametric tadpole constraint

open access: yesJournal of High Energy Physics, 2022
The large volume scenario (LVS) for de Sitter compactifications of the type IIB string is, at least in principle, well protected from various unknown corrections. The reason is that, by construction, the Calabi-Yau volume is exponentially large. However,
Xin Gao   +3 more
doaj   +1 more source

Homotopy Transfer and Effective Field Theory II: Strings and Double Field Theory

open access: yesFortschritte der Physik, Volume 70, Issue 2-3, March 2022., 2022
Abstract We continue our study of effective field theory via homotopy transfer of L∞$L_\infty$‐algebras, and apply it to tree‐level non‐Wilsonian effective actions of the kind discussed by Sen in which the modes integrated out are comparable in mass to the modes that are kept. We focus on the construction of effective actions for string states at fixed
Alex S. Arvanitakis   +3 more
wiley   +1 more source

The anomaly that was not meant IIB

open access: yesFortschritte der Physik, Volume 70, Issue 1, January 2022., 2022
Abstract Type IIB supergravity enjoys a discrete non‐Abelian duality group, which has potential quantum anomalies. In this paper we explicitly compute these, and present the bordism group that controls them, modulo some physically motivated assumptions.
Arun Debray   +3 more
wiley   +1 more source

Searching the landscape of flux vacua with genetic algorithms

open access: yesJournal of High Energy Physics, 2019
In this paper, we employ genetic algorithms to explore the landscape of type IIB flux vacua. We show that genetic algorithms can efficiently scan the landscape for viable solutions satisfying various criteria. More specifically, we consider a symmetric T
Alex Cole, Andreas Schachner, Gary Shiu
doaj   +1 more source

Anomalies, dualities, and topology of D = 6 N = 1 superstring vacua [PDF]

open access: yesNuclear Physics B, 1996
We consider various aspects of compactifications of the Type I/heterotic $Spin(32)/\Z_2$ theory on K3. One family of such compactifications includes the standard embedding of the spin connection in the gauge group, and is on the same moduli space as the compactification of the heterotic $E_8\times E_8$ theory on K3 with instanton numbers (8,16 ...
Berkooz, Micha   +5 more
openaire   +2 more sources

Fundamental Units of Measurement and Extra Dimensions

open access: yesAdvances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022
The space available to our perception is three-dimensional with full evidence. The development of physics led to the hypothesis of extra dimensions. It is believed that an important role in the unification of physics should play by the Planck units of mass, length and time, built on the universal constants c (the speed of light in a vacuum), G (the ...
Askar Abdukadyrov, Gaetano Luciano
wiley   +1 more source

Swampland variations on a theme by KKLT

open access: yesJournal of High Energy Physics, 2019
The KKLT scenario in a warped throat, if consistent, provides a concrete counterexample to both the AdS scale separation and the dS swampland conjectures.
Ralph Blumenhagen   +2 more
doaj   +1 more source

Towards a complete mass spectrum of type-IIB flux vacua at large complex structure

open access: yesJournal of High Energy Physics, 2021
The large number of moduli fields arising in a generic string theory compactification makes a complete computation of the low energy effective theory infeasible.
Jose J. Blanco-Pillado   +3 more
doaj   +1 more source

Topics in Supersymmetry Breaking and Gauge/Gravity Dualities [PDF]

open access: yes, 2010
The thesis covers two topics in string theory and quantum field theory. First, we realize metastable vacua in various supersymmetric gauge theories. Specifically, we consider the Coulomb branch of any N = 2 supersymmetric gauge theory, and perturb it by ...
Park, Chang-Soon
core   +1 more source

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