Results 91 to 100 of about 618 (129)

Model-building for fractional superstrings

, 1992
We investigate heterotic string-type model-building for the recently proposed fractional superstring theories. We concentrate on the cases with critical space-time dimensions four and six, and find that a correspondence can be drawn between the new ...
Henry Tye, S. H., Dienes, Keith R.
core   +1 more source

The physical moduli of heterotic G 2 string compactifications

Journal of High Energy Physics
In previous works, an operator was developed for heterotic compactifications on ℝ2,1 × G 2 and AdS 3 × G 2, which preserves N = 1 d = 3 supersymmetry and whose kernel is related to the moduli of the compactification. The operator is described in terms of
Jock McOrist, Martin Sticka, Eirik Eik Svanes   +2 more
doaj   +1 more source

Higher dimensional theories in physics, following the Kaluza model of unification [PDF]

, 1989
This thesis traces the origins and evolution of higher dimensional models in physics, with particular reference to the five-dimensional Kaluza-Klein unification.
Middleton, Eric William
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String Field Theory: A Review [PDF]

As of today there exist consistent, gauge-invariant string field theories describing all string theories: bosonic open and closed strings, open superstrings, heterotic strings and type II strings.
Sen, Ashoke, Zwiebach, Barton
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Error correcting codes and heterotic Narain CFTs

Journal of High Energy Physics
We study error correcting codes that construct the Narain lattices of heterotic strings as code lattices. We identify, in both E 8 × E 8 and Spin(32)/ℤ2 heterotic strings, a pair of a binary code and a set of the corresponding metric, B field, and ...
Shun’ya Mizoguchi, Takumi Oikawa
doaj   +1 more source

Upper bound on the Atiyah-Singer index from tadpole cancellation

Journal of High Energy Physics
We propose an upper bound on the Atiyah-Singer index in the effective action of string theory. For E 8 × E 8 ′ $$ {E}_8^{\prime } $$ and SO(32) heterotic string theories on smooth Calabi-Yau threefolds with line bundles, we find that the tadpole ...
Keiya Ishiguro, Takafumi Kai, Satsuki Nishimura, Hajime Otsuka, Maki Takeuchi   +4 more
doaj   +1 more source

Recent developments in superstring theory. [PDF]

Proc Natl Acad Sci U S A, 1998
Schwarz JH.
europepmc   +1 more source

Geometry of black holes and braneworlds in higher dimensions [PDF]

, 2004
This tliesis first discusses braneworld models, we explain how the bulk geometry in codimension 2 scenarios restricts braneworld fields in a way inconsistent with observation.
Paul B. Bostock, Bostock, Paul B, Bostock, Paul B.   +2 more
core  

Brane Effective Actions, Kappa-Symmetry and Applications. [PDF]

Living Rev Relativ, 2012
Simón J.
europepmc   +1 more source

The enhancon mechanism in string theory [PDF]

, 2002
The enhancon mechanism is a specific phenomenon in string theory which resolves a certain naked spacetime singularity arising in the supergravity description related to N = 2 supersymmetric pure gauge theory.
Järv, Laur
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