Results 71 to 80 of about 5,303 (156)

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

Exploring T‐Duality for Self‐Dual Fields

Fortschritte der Physik, Volume 72, Issue 5, May 2024.
Abstract Avatars of T‐duality within Sen's formalism for self‐dual field strengths in various dimensions are studied. This formalism is shown to naturally accommodate the T‐duality relation between Type IIA/IIB theories when compactified on a circle without the need for imposing the self‐duality constraint by hand, as is usually done. The study of this
Subhroneel Chakrabarti, Madhusudhan Raman   +1 more
wiley   +1 more source

Heterotic instantons for monad and extension bundles

Journal of High Energy Physics, 2020
We consider non-perturbative superpotentials from world-sheet instantons wrapped on holomorphic genus zero curves in heterotic string theory. These superpotential contributions feature prominently in moduli stabilization and large field axion inflation ...
Evgeny I. Buchbinder, Andre Lukas, Burt A. Ovrut, Fabian Ruehle   +3 more
doaj   +1 more source

Unification of Gravity and Internal Interactions

Fortschritte der Physik, Volume 72, Issue 1, January 2024.
Abstract In the gauge theoretic approach of gravity, general relativity is described by gauging the symmetry of the tangent manifold in four dimensions. Usually the dimension of the tangent space is considered to be equal to the dimension of the curved manifold. However, the tangent group of a manifold of dimension d is not necessarily SOd$SO_d$.
Spyros Konitopoulos, Danai Roumelioti, George Zoupanos   +2 more
wiley   +1 more source

The Monster Sporadic Group and a Theory Underlying Superstring Models [PDF]

, 1996
The pattern of duality symmetries acting on the states of compactified superstring models reinforces an earlier suggestion that the Monster sporadic group is a hidden symmetry for superstring models. This in turn points to a supersymmetric theory of self-
Chapline, George
core   +2 more sources

Introduction to branes and M-theory for relativists and cosmologists

, 2002
We review the recent developments in superstrings. We start with a brief summary of various consistent superstring theories and discuss T-duality which necessarily leads to the presence of D-branes.
Ohta, Nobuyoshi
core   +1 more source

The Power of M Theory [PDF]

, 1995
A proposed duality between type IIB superstring theory on R^9 X S^1 and a conjectured 11D fundamental theory (``M theory'') on R^9 X T^2 is investigated.
Aspinwall, Becker, Bergshoeff, Dabholkar, Dabholkar, Duff, Duff, Duff, Duff, Duff, Duff, Ferrara, Greene, Harvey, Horowitz, Hull, Hull, John H. Schwarz, Kachru, Klemm, Nepomechie, Polchinski, Schwarz, Schwarz, Sen, Strominger, Teitelboim, Townsend, Townsend, Townsend, Townsend, Vafa, Witten   +32 more
core   +2 more sources

A new approach to superstring

Journal of High Energy Physics
We show how starting with one-string space of states in BRST formalism one can construct a large class of physical quantities containing, in particular, scattering amplitudes for bosonic string and superstring.
A. Schwarz
doaj   +1 more source

Heterotic complex structure moduli stabilization for elliptically fibered Calabi-Yau manifolds

Journal of High Energy Physics, 2021
Holomorphicity of vector bundles can stabilize complex structure moduli of a Calabi-Yau threefold in N = 1 supersymmetric heterotic compactifications. In principle, the Atiyah class determines the stabilized moduli.
Wei Cui, Mohsen Karkheiran
doaj   +1 more source

Superstrings from theories with N>1 world-sheet supersymmetry

, 1996
String theories with (N,N') local world-sheet supersymmetries are related to each other by marginal deformations. This connects N=1 and N=0 theories in which the target-spaces are interpreted as space-times, N=2 theories in which the target spaces can be
Ademollo, Ademollo, Amati, Bastianelli, Bastianelli, Bastianelli, Baulieu, Berkovits, Berkovits, Casher, Eliezer Rabinovici, Elitzur, Englert, Giveon, Giveon, Green, Green, Ketov, Laurent Baulieu, Losev, Losev, Michael B. Green, Ohta, Ooguri, Ooguri, Ooguri, Schoutens, Siegel, Witten   +28 more
core   +1 more source