Results 21 to 30 of about 44,944 (216)
Boundary Entropy Can Increase Under Bulk RG Flow [PDF]
, 2007 The boundary entropy log(g) of a critical one-dimensional quantum system (or two-dimensional conformal field theory) is known to decrease under renormalization group (RG) flow of the boundary theory.
Affleck +44 more
core +3 more sources
Closed String Tachyon Condensation on Twisted Circles [PDF]
, 2002 We study IIA/B string theory compactified on twisted circles. These models possess closed string tachyons and reduce to type 0B/A theory in a special limit.
A. Adams +31 more
core +1 more source
Type II string theory on Calabi-Yau manifolds with torsion and non-Abelian discrete gauge symmetries
Journal of High Energy Physics, 2017 We provide the first explicit example of Type IIB string theory compactification on a globally defined Calabi-Yau threefold with torsion which results in a four-dimensional effective theory with a non-Abelian discrete gauge symmetry. Our example is based
Volker Braun +3 more
doaj +1 more source
Spectra of 4D, N=1 Type I String Vacua on Non-Toroidal CY Threefolds [PDF]
, 1998 We compute the massless spectra of some four dimensional, N=1 supersymmetric compactifications of the type I string. The backgrounds are non-toroidal Calabi-Yau manifolds described at special points in moduli space by Gepner models.
Andreas Wißkirchen +8 more
core +2 more sources
A general BRST approach to string theories with zeta function regularizations
, 1998 We propose a new general BRST approach to string and string-like theories which have a wider range of applicability than e g the conventional conformal field theory method.
Batalin I. A. +3 more
core +1 more source
Integrable flows between exact CFTs
Journal of High Energy Physics, 2017 We explicitly construct families of integrable σ-model actions smoothly inter-polating between exact CFTs. In the ultraviolet the theory is the direct product of two current algebras at levels k 1 and k 2.
George Georgiou, Konstantinos Sfetsos
doaj +1 more source
Relation between spectra of Narain CFTs and properties of associated boolean functions
Journal of High Energy Physics, 2022 Recently, the construction of Narain CFT from a certain class of quantum error correcting codes has been discovered. In particular, the spectral gap of Narain CFT corresponds to the binary distance of the code, not the genuine Hamming distance.
Yuma Furuta
doaj +1 more source
Conformal relativity versus Brans-Dicke and superstring theories
, 2004 Conformal relativity theory which is also known as Hoyle-Narlikar theory has recently been given some new interest. It is an extended relativity theory which is invariant with respect to conformal transformations of the metric.
Birell +15 more
core +2 more sources
Nucleon decay in gauge unified models with intersecting D6-branes [PDF]
, 2007 Baryon number violation is discussed in gauge unified orbifold models of type II string theory with intersecting Dirichlet branes. We consider setups of D6-branes which extend along the flat Minkowski space-time directions and wrap around 3-cycles of the
A. Hashimoto +10 more
core +4 more sources
D-brane Spectrum and K-theory Constraints of D=4, N=1 Orientifolds [PDF]
, 2006 We study the spectrum of stable BPS and non-BPS D-branes in Z_2 x Z_2 orientifolds for all choices of discrete torsion between the orbifold and orientifold generators.
A. Dabholkar +39 more
core +4 more sources