Results 21 to 30 of about 45,041 (216)

Normalization of ZZ instanton amplitudes in minimal string theory

Journal of High Energy Physics, 2022
We use insights from string field theory to analyze and cure the divergences in the cylinder diagram in minimal string theory with both boundaries lying on a ZZ brane.
Dan Stefan Eniceicu, Raghu Mahajan, Chitraang Murdia, Ashoke Sen   +3 more
doaj   +1 more source

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, Affleck, Affleck, Affleck, Affleck, Affleck, Ahn, Baumgartl, Bloete, Cardy, Cardy, Cooper, Daniel Green, David Starr, Dorey, Dorey, Dorey, Dotsenko, Fendley, Fredenhagen, Fredenhagen, Freedman, Friedan, Gaberdiel, Ghoshal, Green, Harvey, Ishibashi, Karczmarek, Keller, Kitaev, LeClair, Lesage, Levin, Ludwig, Ludwig, Michael Mulligan, Polchinski, Polchinski, Recknagel, Recknagel, Schmidhuber, Sen, Zamolodchikov, Zamolodchikov   +44 more
core   +3 more sources

Ising model conformal boundary conditions from open string field theory

, 2014
Given a consistent choice of conformally invariant boundary conditions in a two dimensional conformal field theory, one can construct new consistent boundary conditions by deforming with a relevant boundary operator and flowing to the infrared, or by a marginal deformation.
Kudrna, Matej, Rapcak, Miroslav, Schnabl, Martin   +2 more
openaire   +2 more sources

From N=2 strings to F&M theory [PDF]

, 1996
Taking the N=2 strings as the starting point, we discuss the equivalent self-dual field theories and analyse their symmetry structure in 2+2 dimensions. Restoring the full `Lorentz' invariance in the target space necessarily leads to an extension of the ...
Berkovits, Bischoff, Bonini, Hull, Ketov, Ketov, Ketov, Ketov, Ketov, Kutasov, Leznov, Lü, Ooguri, Ooguri, Parkes, Plebanski, S.V. Ketov, Siegel, Siegel, Siegel, Townsend, Vafa, Witten, Yang   +23 more
core   +2 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, A. Bergman, A. Dabholkar, A. Dabholkar, A. Dabholkar, A. Sen, C. Vafa, C.-M. Chen, F. Dowker, G.T. Horowitz, J. Polchinski, J.A. Harvey, J.G. Russo, Justin R David, K. Bardakci, K. Hori, K. Hori, L.J. Dixon, M. Gutperle, M.S. Costa, Matthew Headrick, Michael Gutperle, R. Emparan, S.R. Das, S.R. Das, Shiraz Minwalla, T. Banks, T. Suyama, T. Suyama, T. Takayanagi, T. Takayanagi, Y. Michishita   +31 more
core   +1 more source

ℤ2 boundary twist fields and the moduli space of D-branes

Journal of High Energy Physics, 2018
We revisit the boundary conformal field theory of twist fields. Based on the equivalence between twisted bosons on a circle and the orbifold theory at the critical radius, we provide a bosonized representation of boundary twist fields and thus a free ...
Luca Mattiello, Ivo Sachs
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, Angelantonj, Cardy, Fuchs, Fuchs, Gepner, Gimon, Polchinski, Ralph Blumenhagen   +8 more
core   +2 more sources

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, Mirjam Cvetič, Ron Donagi, Maximilian Poretschkin   +3 more
doaj   +1 more source

Exact non-abelian duality [PDF]

, 1996
We investigate non-abelian gaugings of WZNW models. When the gauged group is semisimple we are able to present exact formulae for the dual conformal field theory, for all values of the level $k$.
Bars, Buscher, Cornwell, de la Ossa, Gasperini, Giveon, Jack, Kiritsis, Klimčík, Knizhnik, Malcolm Perry, Polyakov, Stephen Hewson, Tseytlin, Tyurin, Witten, Witten, Álvarez   +17 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., Panagiotis Saltsidis, Robert Marnelius, Stephen Hwang   +3 more
core   +1 more source