Results 1 to 10 of about 29,405 (168)
D-Branes in Para-Hermitian Geometries
Universe, 2022 We introduce T-duality invariant versions of D-branes in doubled geometry using a global covariant framework based on para-Hermitian geometry and metric algebroids.
Vincenzo Emilio Marotta +1 more
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Cosmological creation of D-branes and anti-D-branes [PDF]
Journal of High Energy Physics, 2002 We argue that the early universe may be described by an initial state of space-filling branes and anti-branes. At high temperature this system is stable. At low temperature tachyons appear and lead to a phase transition, dynamics, and the creation of D-branes. These branes are cosmologically produced in a generic fashion by the Kibble mechanism.
Majumdar, Mahbub, Davis, Anne-Christine
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A novel solution to the gravitino problem
Journal of High Energy Physics, 2023 In a general phenomenological model with local supersymmetry, the amount of massive gravitinos produced in early universe tends to violate the known dark matter density bound by many orders of magnitude.
Yu-Cheng Qiu, S.-H. Henry Tye
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Tachyon tunnelling in D-brane-anti-D-brane [PDF]
Journal of High Energy Physics, 2006 15 pages, 4 figures, Latex file, minor changes, reference ...
Bitaghsir, Kazem, Garousi, Mohammad R.
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World-volume dynamics of D-branes in a D-brane background [PDF]
Nuclear Physics B, 1999 We study the embedding of D(8-p)-branes in the background geometry of parallel Dp-branes for $p\le 6$. The D(8-p)-brane is extended along the directions orthogonal to the Dp-branes of the background. The D(8-p)-brane configuration is determined by its Dirac-Born-Infeld plus Wess-Zumino-Witten action. We find a BPS condition which solves the equation of
Camino, J. M. +2 more
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Journal of High Energy Physics, 2000 We study D-branes on the quintic CY by combining results from several directions: general results on holomorphic curves and vector bundles, stringy geometry and mirror symmetry, and the boundary states in Gepner models recently constructed by Recknagel and Schomerus, to begin sketching a picture of D-branes in the stringy regime.
Brunner, Ilka +3 more
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Journal of High Energy Physics, 2013 We study the dynamics of ultrarelativistic D-branes. The dominant phenomenon is bremsstrahlung: mild acceleration induced by closed string interactions triggers extremely rapid energy loss through radiation of massless closed strings. After characterizing bremsstrahlung from a general k-dimensional extended object in a D-dimensional spacetime, we ...
Bachlechner, Thomas C., Mcallister, Liam
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Journal of High Energy Physics, 2004 We study several different kinds of bound states built from D-branes and orientifolds. These states are to atoms what branonium - the bound state of a brane and its anti-brane - is to positronium, inasmuch as they typically involve a light brane bound to a much heavier object with conserved charges which forbid the system's decay.
C.P. Burgess (Physics Department +7 more
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Dual D-brane actions in nonrelativistic string theory
Journal of High Energy Physics, 2022 We study worldvolume actions for D-branes coupled to the worldvolume U(1) gauge field and Ramond-Ramond (RR) potentials in nonrelativistic string theory.
Stephen Ebert, Hao-Yu Sun, Ziqi Yan
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Physics Letters B, 1996 9 pages, 6 figures; uses harvmac and ...
Berenstein, David +4 more
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