Results 51 to 60 of about 572 (144)
Fermionic one-loop amplitudes of the RNS superstring
Journal of High Energy Physics, 2018 We investigate massless n-point one-loop amplitudes of the open RNS superstring with two external fermions and determine their worldsheet integrands.
Seungjin Lee, Oliver Schlotterer
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On unitarity of tree-level string amplitudes
Journal of High Energy Physics, 2022 Four-particle tree-level scattering amplitudes in string theory are magically consistent with unitarity, reflected in the non-trivial fact that beneath the critical dimension, the residues of the amplitudes on massive poles can be expanded in partial ...
Nima Arkani-Hamed +3 more
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T‐Symmetry in String Geometry Theory
Advances in High Energy Physics, Volume 2025, Issue 1, 2025.String geometry theory is one of the candidates of nonperturbative formulation of string theory. In this paper, we have shown that dimensionally reduced string geometry theories have what we call T‐symmetry. In the case of the dimensional reduction in space‐like directions, the T‐symmetry transformation gives the T‐dual transformation between the Type ...
Matsuo Sato +2 more
wiley +1 more source
Understanding Gravity: Some Extra‐Dimensional Perspectives
International Scholarly Research Notices, Volume 2011, Issue 1, 2011., 2011 Gravity is one of the most inexplicable forces of nature, controlling everything, from the expansion of the Universe to the ebb and flow of ocean tides. The search for the laws of motion and gravitation began more than two thousand years ago but still we do not have the complete picture of it.
V. H. Satheeshkumar +2 more
wiley +1 more source
Braneworld black holes and black strings [PDF]
, 2008 This thesis involves the study of strong and weak gravity phenomenology within the braneworld paradigm. We begin with a general overview of the hypothesised concept of extra spatial dimensions and explain why they are so interesting.
Mistry, Bina
core
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 +1 more
wiley +1 more source
String field theoryะ Time evolution and T-duality [PDF]
, 2005 The time evolution operator of quantum field theory (Schrödinger functional) can be written in terms of particles moving on S(^1)/Z(_2-). By deriving the 'gluing property’ which joins two propagators across fixed time surfaces, we show that the Feynman ...
Liderton, Anton
core
Non-perturbative Temperature Instabilities in N=4 Strings [PDF]
, 1999 We derive a universal thermal effective potential, which describes all possible high-temperature instabilities of the known N=4 superstrings, using the properties of gauged N=4 supergravity.
Kounnas, Costas +2 more
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BPS solutions and new phases of finite-temperature strings [PDF]
, 2001 47 pages, 3 eps figures, Latex, version to be published in Nucl. Phys. B, one refernce added, minor correctionsInternational audienceAll high-temperature phases of the known N=4 superstrings in five dimensions can be described by the universal thermal ...
A. Bilal +7 more
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Journal of High Energy PhysicsWe 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
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