Results 21 to 30 of about 44,906 (151)

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

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, A. Sen, A. Sen, A. Sen, A. Sen, A. Sen, A. Sen, A. Sen, A. Sen, A. Sen, B. Craps, Bogdan Stefański, E. Witten, F. Gmeiner, F. Marchesano, F.G. Marchesano Buznego, For a review, Gary Shiu, I. Antoniadis, I. Garcia-Etxebarria, J. Kumar, J. Majumder, J.F.G. Cascales, John Maiden, M. Bianchi, M. Bianchi, M. Cvetic, M. Klein, M. Klein, M.R. Douglas, M.R. Douglas, M.R. Gaberdiel, M.R. Gaberdiel, O. Bergman, P. Di Vecchia, P. Di Vecchia, R. Blumenhagen, R. Minasian, The European String Vacuum Project website is located at http://www.ippp.dur.ac.uk/ dgrell/svp/, V. Braun   +39 more
core   +4 more sources

A string field theoretical description of (p,q) minimal superstrings [PDF]

, 2006
A string field theory of (p,q) minimal superstrings is constructed with the free-fermion realization of 2-component KP (2cKP) hierarchy, starting from 2-cut ansatz of two-matrix models.
Fukuma, Masafumi, Irie, Hirotaka
core   +4 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

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

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

N=1 Dual String Pairs and Gaugino Condensation [PDF]

, 1995
We study a class of four-dimensional N=1 heterotic string theories which have nontrivial quantum dynamics arising from asymptotically free gauge groups.
Amati, Anderson, Argyres, Aspinwall, Candelas, Candelas, Candelas, Candelas, de Carlos, Derendinger, Dine, Dixon, Eva Silverstein, Fenara, Font, Friedman, Green, Green, Greene, Harvey, Home, Hull, Ibanez, Kachru, Kaplunovsky, Kaplunovsky, Klemm, Klemm, Kobayashi, Krasnikov, Morrison, Seiberg, Seiberg, Sen, Shamit Kachru, Silverstein, Strominger, Taylor, Witten, Witten, Witten   +40 more
core   +2 more sources

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, Blaschke, Carneiro, Chernikov, David B. Blaschke, Dąbrowski, d’Inverno, Fujii, Hawking, Mariusz P. Dąbrowski, Misner, Narlikar, Penrose, Polchinski, Weinberg, Weyl   +15 more
core   +2 more sources