Results 111 to 120 of about 6,455,624 (259)

Ultraviolet and Infrared Divergences in Superstring Theory [PDF]

open access: yesarXiv, 2015
Superstring theory is known to be free from ultraviolet divergences but suffers from the usual infrared divergences that occur in quantum field theories. After briefly reviewing the origin of ultraviolet finiteness of superstring theory we describe recent progress towards the understanding of infrared divergences in superstring theory.
arxiv  

One-point functions of non-SUSY operators at arbitrary genus in a matrix model for type IIA superstrings

open access: yesNuclear Physics B, 2017
In the previous paper, the authors pointed out correspondence between a supersymmetric double-well matrix model and two-dimensional type IIA superstring theory on a Ramond–Ramond background from the viewpoint of symmetry and spectrum.
Tsunehide Kuroki, Fumihiko Sugino
doaj   +1 more source

Exotic Origins of Tensionless Superstrings [PDF]

open access: yesarXiv, 2018
A new type of tensionless superstring theory, called the Inhomogeneous tensionless superstring, has been recently introduced. This is characterised by a residual symmetry algebra on the worldsheet richer in structure than the previously known symmetry algebra related to Homogeneous tensionless superstring.
arxiv  

On nonperturbative solutions of superstring field theory [PDF]

open access: yesPhysics Letters B, 2003
1+8 pages, LaTeX; v2: one reference added, to appear in Phys.
Sebastian Uhlmann   +3 more
openaire   +3 more sources

Quantisation of type IIB superstring theory and the matrix model

open access: yesJournal of High Energy Physics
We discuss the path-integral quantisation of perturbative string theory and show equivalence between the Polyakov-type, Schild-type and Nambu-Goto-type formulations of critical type II superstring theory.
Yuhma Asano
doaj   +1 more source

Four-Dimensional Superstring Models [PDF]

open access: yesarXiv, 1995
These lectures from the 1995 Trieste Summer School in High Energy Physics and Cosmology give an elementary introduction to perturbative superstring theory, superstring phenomenology, and the fermionic construction of perturbative string models.These lectures assume no prior knowledge of string theory.
arxiv  

Superstring field theory

open access: yesNuclear Physics B, 1990
We construct a class of cubic gauge-invariant actions for superstring field theory, gauge fix one of them and show that it reproduces the known superstring S-matrix. In our construction boson string fields are taken in the 0 picture and fermion string fields in the −12 picture.
Department of Physics, University of Florida, Gainesville, FL 32611, USA ( host institution )   +3 more
openaire   +4 more sources

Complex Structure of the Four-Dimensional Kerr Geometry: Stringy System, Kerr Theorem, and Calabi-Yau Twofold

open access: yesAdvances in High Energy Physics, 2013
The 4D Kerr geometry displays many wonderful relations with quantum world and, in particular, with superstring theory. The lightlike structure of fields near the Kerr singular ring is similar to the structure of Sen solution for a closed heterotic string.
Alexander Burinskii
doaj   +1 more source

Field theory actions for ambitwistor string and superstring

open access: yesJournal of High Energy Physics, 2018
We analyze the free ambitwistor string field theory action for the bosonic string, heterotic string and both GSO sectors of the Type II string. The spectrum contains non-unitary states and provides an interesting consistency test for one-loop ambitwistor
Nathan Berkovits, Matheus Lize
doaj   +1 more source

The twisted story of worldsheet scattering in η-deformed AdS5 × S5

open access: yesJournal of High Energy Physics, 2020
We study the worldsheet scattering theory of the η deformation of the AdS5 × S5 superstring corresponding to the purely fermionic Dynkin diagram. This theory is a Weyl-invariant integrable deformation of the AdS5 × S5 superstring, with trigonometric ...
Fiona K. Seibold   +2 more
doaj   +1 more source

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