Results 1 to 10 of about 606 (134)

Green-Schwarz and pure spinor formulations of chiral strings

open access: yesJournal of High Energy Physics, 2021
Bosonic and RNS chiral strings have been defined from a singular gauge fixing of the respective Polyakov and spinning string actions, enforcing, among other things, the finite nature of their physical spectra.
Max Guillen
doaj   +2 more sources

A New Approach to String Theory

open access: yesUniverse, 2023
In the present paper, we consider quantum theories obtained through the quantization of classical theories with first-class constraints assuming that these constraints form a Lie algebra.
Albert Schwarz
doaj   +2 more sources

Connecting the ambitwistor and the sectorized heterotic strings

open access: yesJournal of High Energy Physics, 2017
The sectorized description of the (chiral) heterotic string using pure spinors has been misleadingly viewed as an infinite tension string. One evidence for this fact comes from the tree level 3-point graviton amplitude, which we show to contain the usual
Renann Lipinski Jusinskas
exaly   +3 more sources

New BPS states from bosonic/heterotic duality

open access: yesJournal of High Energy Physics
In this paper, we consider the recently proposed bosonic/heterotic duality that relates the heterotic superstrings to the noncritical bosonic string. Although the latter is nonsupersymmetric, it can be viewed as pseudo-supersymmetric in that the theory ...
Hong Lu, Ma Liang
exaly   +2 more sources

D=5 holomorphic Chern-Simons and the pure spinor superstring

open access: yesJournal of High Energy Physics, 2023
The physical states of D=5 holomorphic Chern-Simons theory correspond to on-shell D=10 open superstring states in the cohomology of q +, where q + is one of the 16 spacetime supersymmetry generators.
Nathan Berkovits
doaj   +1 more source

Fermionic T-duality and U-duality in type II supergravity [PDF]

open access: yes, 2011
PhDThis thesis deals with the two duality symmetries of N = 2 D = 10 supergravity theories that are descendant from the full superstring theory: fermionic T-duality and U-duality.
Bakhmatov, Ilya
core   +4 more sources

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

Refined topological amplitudes from the Ω-background in string theory

open access: yesJournal of High Energy Physics, 2022
It was recently shown that the N $$ \mathcal{N} $$ = 2 string topological amplitudes in the heterotic weak coupling limit generate a six-dimensional Melvin space, providing a description of the Ω-background in string theory, where string propagation can ...
Carlo Angelantonj   +3 more
doaj   +1 more source

Toroidal & Orbifold Compactifications at Large D and D‐Duality

open access: yesFortschritte der Physik, Volume 70, Issue 1, January 2022., 2022
Abstract In this paper I will further investigate the spectrum of quantum gravity or string theories at large number of dimensions. We will see that volumes of certain orbifolds shrink at large D. It follows that the mass spectra of the leading Kaluza‐Klein towers and also of wrapped brane states on these orbifolds possess a non‐trivial dependence on D:
Dieter Lüst
wiley   +1 more source

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