Results 61 to 70 of about 29,405 (168)
Cosmic branes and asymptotic structure
Superrotations of asymptotically flat spacetimes in four dimensions can be interpreted in terms of including cosmic strings within the phase space of allowed solutions.
F. Capone, M. Taylor
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Currents, charges and algebras in exceptional generalised geometry
A classical E d(d)-invariant Hamiltonian formulation of world-volume theories of half-BPS p-branes in type IIb and eleven-dimensional supergravity is proposed, extending known results to d ≤ 6. It consists of a Hamiltonian, characterised by a generalised
David Osten
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D-branes in Melvin background [PDF]
In this paper we discuss D-branes in the Melvin background and its supersymmetric generalizations. In particular we determine the D-brane spectra in these backgrounds by constructing their boundary states explicitly, where some of the D-branes are supersymmetric.
Takayanagi, Tadashi, Uesugi, Tadaoki
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Integrable branes in generalized λ-deformations
We search for integrable boundary conditions and their geometric interpretation as D-branes, in models constructed as generalized λ-deformations of products of group- and coset-spaces.
Georgios P. D. Pappas
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Unitarity, D-brane dynamics and D-brane categories [PDF]
This is a short nontechnical note summarizing the motivation and results of my recent work on D-brane categories. I also give a brief outline of how this framework can be applied to study the dynamics of topological D-branes and why this has a bearing on the homological mirror symmetry conjecture. This note can be read without any knowledge of category
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Dual super Dp-brane actions are constructed by carrying out a duality transformation of the world-volume U(1) gauge field. The resulting world-volume actions, which contain a (p - 2)-form gauge field, are shown to have the expected properties. Specifically, the D1-brane and D3-brane transform in ways that can be understood on the basis of the SL(2, Z ...
Aganagic, Mina +3 more
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We discuss how to incorporate non-supersymmetric branes in compactifications of type II string theories. We particularly focus on flux compactifications on SU(3) × SU(3) structure manifolds to four dimensions, so that a linear N $$ \mathcal{N} $$ = 1 ...
Niccolò Cribiori +4 more
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Five-brane current algebras in type II string theories
We study the current algebras of the NS5-branes, the Kaluza-Klein (KK) five-branes and the exotic 5 2 2 $$ {5}_2^2 $$ -branes in type IIA/IIB superstring theories. Their worldvolume theories are governed by the six-dimensional N $$ \mathcal{N} $$ = (2, 0)
Machiko Hatsuda +2 more
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Noncommutative geometry and D-branes [PDF]
We apply noncommutative geometry to a system of N parallel D-branes, which is interpreted as a quantum space. The Dirac operator defining the quantum differential calculus is identified to be the supercharge for strings connecting D-branes. As a result of the calculus, Connes' Yang-Mills action functional on the quantum space reproduces the ...
Ho, Pei-Ming, Wu, Yong-Shi
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Different D-brane interactions [PDF]
Tex, 12 pages.
Arfaei, H., Jabbari, M. M. Sheikh
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