Results 51 to 60 of about 15,275,150 (324)
Anomalies in string theory with D-branes [PDF]
We analyze global anomalies for elementary Type II strings in the presence of D-branes. Global anomaly cancellation gives a restriction on the D-brane topology.
D. Freed, E. Witten
semanticscholar +1 more source
Corrections made and some typographical errors ...
Carey, Alan +2 more
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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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Dynamics of revolving D-branes at short distances
We study the behavior of the effective potential between revolving Dp-branes at all ranges of the distance r, interpolating r » ls and r « ls (ls is the string length).
Satoshi Iso +3 more
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I calculate the semiclassical phase shift ($ $), as function of impact parameter ($b$) and velocity ($v$), when one D-brane moves past another. From its low-velocity expansion I show that, for torroidal compactifications, the moduli space of two identical D-branes stays flat to all orders in $ ^\prime$.
Constantin Bachas, Constantin Bachas
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Closed strings can be seen either as one-dimensional objects in a target space or as points in the free loop space. Correspondingly, a B-field can be seen either as a connection on a gerbe over the target space, or as a connection on a line bundle over the loop space. Transgression establishes an equivalence between these two perspectives. Open strings
Bunk, Severin, Waldorf, Konrad
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(p − 1)-bracket for Dp-branes in large R-R field background
The volume-preserving diffeomorphism is a key feature that characterizes the large constant R-R (p − 1)-form field background in a Dp-brane theory. It represents a symmetry of the theory that preserves the volume of space.
Chen-Te Ma
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Hanany-Witten transition in quantum curves
It was known that the U(N )4 super Chern-Simons matrix model describing the worldvolume theory of D3-branes with two NS5-branes and two (1, k)5-branes in IIB brane configuration (dual to M2-branes after taking the T-duality and the M-theory lift ...
Naotaka Kubo, Sanefumi Moriyama
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D4-branes wrapped on a spindle
We construct supersymmetric solutions of D = 6 gauged supergravity, where is a two-dimensional orbifold known as a spindle. These uplift to solutions of massive type IIA supergravity using a general prescription, that we describe.
Federico Faedo, Dario Martelli
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D-branes at del Pezzo singularities: global embedding and moduli stabilisation [PDF]
A bstractIn the context of type IIB string theory we combine moduli stabilisation and model building on branes at del Pezzo singularities in a fully consistent global compactification.
M. Cicoli +4 more
semanticscholar +1 more source

