Results 31 to 40 of about 157 (135)
Integrable models based on non-semi-simple groups and plane wave target spacetimes
We initiate the construction of integrable $\lambda$-deformed WZW models based on non-semisimple groups. We focus on the four-dimensional case whose underlying symmetries are based on the non-semisimple group $E_2^c$.
Sfetsos, Konstantinos +1 more
core +2 more sources
Nationalism and the transformation of the state
Abstract While it is often assumed that the core debates about nationalism were settled by modernist scholars already in the 1980s, there are reasons to question this theoretical ‘consensus’, especially because it fails to anticipate the wave of nationalist geopolitics that is currently sweeping through the world.
Lars‐Erik Cederman
wiley +1 more source
Locality and causality properties of light cone string field theory [PDF]
The recent discovery of a new maximally supersymmetric background for the type IIB superstring theory has revived the interest in light cone string field theory.
Kyritisis, Konstantinos
core
Penrose limits and maximal supersymmetry
We show that the maximally supersymmetric pp-wave of 1113 superstring and M-theories can be obtained as a Penrose limit of the supersymmetric AdS x S solutions.
Blau, M +3 more
core +1 more source
Semiclassical strings in supergravity PFT [PDF]
Puff field theory (PFT) is an example of a non-local field theory which arises from a novel embedding of D-branes in a Melvin universe. We study several rotating and pulsating string solutions of the F-string equations of motion in the supergravity dual ...
Aritra Banerjee +2 more
core +1 more source
AdS/CFT v. s. string loops [PDF]
archiveprefix: arXiv primaryclass: hep-th slaccitation: %%CITATION = HEP-TH/0605080;%%archiveprefix: arXiv primaryclass: hep-th slaccitation: %%CITATION = HEP-TH/0605080;%%archiveprefix: arXiv primaryclass: hep-th slaccitation: %%CITATION = HEP-TH ...
Ramadanovic, B +4 more
core
Superstrings on Penrose limits of AdS$_7$ solutions
We consider the Penrose limit of AdS$_7$ solutions of massive Type IIA supergravity. The resulting pp-wave geometry is supported by RR and NSNS fields.
Passias, Achilleas
core
Magnetic Heisenberg-chain/pp-wave correspondence
We find a decoupling limit of planar ≤ 4 super Yang-Mills (SYM) on × S3 in which it becomes equivalent to the ferromagnetic XXX1/2 Heisenberg spin chain in an external magnetic field. The decoupling limit generalizes the one found in ref.
Orselli, Marta +4 more
core +1 more source
Plane waves from double extended spacetimes [PDF]
We study exact string backgrounds (WZW models) generated by nonsemisimple algebras which are obtained as double extensions of generic D-dimensional semisimple algebras.
Penati S. +2 more
core +1 more source
Open strings in a pp-wave background from defect conformal field theory [PDF]
We consider open strings ending on a D5-brane in the pp-wave background, which is realized in the Penrose limit of AdS5×S5 with an AdS4×S2 brane. A complete set of gauge invariant operators in the defect conformal field theory is constructed which is ...
Park, Jongwon, Lee, Peter
core

