Results 61 to 70 of about 5,095 (92)

Arguments for F-theory [PDF]

, 2005
After a brief review of string and $M$-Theory we point out some deficiencies. Partly to cure them, we present several arguments for ``$F$-Theory'', enlarging spacetime to $(2, 10)$ signature, following the original suggestion of C. Vafa.
Alvarez E., Brink L., Connes A., Davies P., Freed D., Green M. B., Johnson C. V., Kleinschmidt A., LUIS J. BOYA, Polchinski J., Seiberg N., Teparksorn T., Witten E.   +12 more
core   +2 more sources

Open Heterotic Strings

, 2005
We classify potential cosmic strings according to the topological charge measurable outside the string core. We conjecture that in string theory it is this charge that governs the stability of long strings.
A. Sen, A. Sen, A.D. Sakharov, D.B. Fairlie, E. Witten, E.J. Copeland, J.A. Harvey, J.C. Baez, Joseph Polchinski, K. Becker, K. Olsen, M.J. Duff, N. Arkani-Hamed, N. Moeller, S.H. Shenker, T. Banks, T.W.B. Kibble, V.A. Rubakov   +17 more
core   +2 more sources

Towards massive field-theory amplitudes from the cohomology of pure spinor superspace

Journal of High Energy Physics
By analogy with the formula for the massless string disk amplitudes, we define massive field-theory tree amplitudes and conjecture that the BRST cohomology structure of pure spinor superspace fixes their form. We give evidence by deriving the pure spinor
Carlos R. Mafra
doaj   +1 more source

Pair production and gravity as the weakest force

Journal of High Energy Physics, 2020
The Weak Gravity Conjecture (WGC) is usually formulated in terms of the stability of extremal black-holes or in terms of long distance Coulomb/Newton potentials.
Eduardo Gonzalo, Luis E. Ibáñez
doaj   +1 more source

State counting on fibered CY 3-folds and the non-Abelian weak gravity conjecture

Journal of High Energy Physics, 2021
We extend the dictionary between the BPS spectrum of Heterotic strings and the one of F-/M-theory compactifications on K3 fibered Calabi-Yau 3-folds to cases with higher rank non-Abelian gauge groups and in particular to dual pairs between Heterotic CHL ...
Cesar Fierro Cota, Albrecht Klemm, Thorsten Schimannek   +2 more
doaj   +1 more source

Recent developments in non-perturbative quantum field theory [PDF]

, 1996
We report on recent advances in the understanding of non-perturbative phenomena in the quantum theory of fields and strings.Comment: 6 pages, latex, uses stwol.sty; Plenary talk given at International Conference on High Energy Physics (ICHEP), Warsaw ...
Ferrara, Sergio
core   +1 more source

Subleading soft theorem for multiple soft gravitons

Journal of High Energy Physics, 2017
We derive the subleading soft graviton theorem in a generic quantum theory of gravity for arbitrary number of soft external gravitons and arbitrary number of finite energy external states carrying arbitrary mass and spin.
Subhroneel Chakrabarti, Sitender Pratap Kashyap, Biswajit Sahoo, Ashoke Sen, Mritunjay Verma   +4 more
doaj   +1 more source

Universal Thermal Instabilities and the High-Temperature Phase of the N=4 Superstrings [PDF]

, 1999
Using the properties of gauged N=4 supergravity, we show that it is possible to derive a universal thermal effective potential that describes all possible high-temperature instabilities of the known N=4 superstrings.
Kounnas, Costas
core   +2 more sources

Heterotic sigma models on T 8 and the Borcherds automorphic form Φ12

Journal of High Energy Physics, 2017
We consider the spectrum of BPS states of the heterotic sigma model with (0, 8) supersymmetry and T 8 target, as well as its second-quantized counterpart.
Sarah M. Harrison, Shamit Kachru, Natalie M. Paquette, Roberto Volpato, Max Zimet   +4 more
doaj   +1 more source

Completing R 4 using O(d, d)

Journal of High Energy Physics, 2022
The tree-level string effective action is known to contain quartic Riemann terms with coefficient ζ(3)α′3. In the case of the type II string this is the first α′ correction.
Linus Wulff
doaj   +1 more source