Results 31 to 40 of about 138,935 (247)

The Nambu‐Goto theory of closed bosonic strings moving in 1 + 3–dimensional Minkowski space: the construction of the quantum algebra of observables up to degree five [PDF]

open access: yesAnnals of Physics, 1998
The quantum algebra of observables of closed bosonic strings moving in 1 + 3–dimensional Minkowski space is constructed up to degree five. All independent relations of degree four are computed; they involve three as yet undetermined parameters ...
G. Handrich, C. Nowak
semanticscholar   +1 more source

Positivity of the Veneziano amplitude in D = 4

open access: yesJournal of High Energy Physics, 2022
The Veneziano amplitude was put forward as a solution to the axioms of the S-matrix bootstrap. However, unitarity, reflected in the positivity of the coefficients in the Gegenbauer expansion of the amplitude is not obvious.
Pronobesh Maity
doaj   +1 more source

Bosonic string algebras

open access: yesPhysics Letters B, 1985
We discuss some aspects of symmetry breakings in string theories. We mainly focus on the algebra of bosonic strings, but suspect similar ideas may be used for superstring theories. We point out a curious relation between the partition function of certain bosonic string theories and superstring theories.
C. Vafa, E. Witten
openaire   +1 more source

Cutting the Coon amplitude

open access: yesJournal of High Energy Physics, 2023
The Coon amplitude is a q-deformed generalization of the Veneziano amplitude exhibiting a semi-infinite sequence of poles that converge on an accumulation point, from which a branch cut emerges. A number of recent papers have provided compelling evidence
Christian Baadsgaard Jepsen
doaj   +1 more source

Two-point string amplitudes

open access: yesJournal of High Energy Physics, 2019
We show that the two-point tree level amplitude in string theory in flat space is given by the standard free particle expression.
Harold Erbin   +2 more
doaj   +1 more source

Fermions in bosonic string theories [PDF]

open access: yesJournal of High Energy Physics, 2001
25 pages, 2 figs, harvmac ; v2, minor modifications, references ...
David, Justin R.   +2 more
openaire   +2 more sources

Higher-spin Realisations of the Bosonic String [PDF]

open access: yes, 1995
It has been shown that certain $W$ algebras can be linearised by the inclusion of a spin--1 current. This provides a way of obtaining new realisations of the $W$ algebras.
Lu, H., Pope, C. N., Xu, K. W.
core   +2 more sources

On the covariant quantization of tensionless bosonic strings in AdS spacetime [PDF]

open access: yes, 2003
The covariant quantization of the tensionless free bosonic (open and closed) strings in AdS spaces is obtained. This is done by representing the AdS space as an hyperboloid in a flat auxiliary space and by studying the resulting string constrained ...
Giulio Bonelli
semanticscholar   +1 more source

Pinching parameters for open (super) strings

open access: yesJournal of High Energy Physics, 2018
We present an approach to the parametrization of (super) Schottky space obtained by sewing together three-punctured discs with strips. Different cubic ribbon graphs classify distinct sets of pinching parameters; we show how they are mapped onto each ...
Sam Playle, Stefano Sciuto
doaj   +1 more source

Canonical analysis of new non-relativistic string action and uniform light-cone gauge formulation

open access: yesJournal of High Energy Physics, 2021
We perform canonical analysis of new non-relativistic string action that was found recently in [32]. We also discuss its gauge fixed form.
J. Klusoň
doaj   +1 more source

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