Results 21 to 30 of about 29,405 (168)
Chiral magnets from string theory
Chiral magnets with the Dzyaloshinskii-Moriya (DM) interaction have received quite an intensive focus in condensed matter physics because of the presence of a chiral soliton lattice (CSL), an array of magnetic domain walls and anti-domain walls, and ...
Yuki Amari, Muneto Nitta
doaj +1 more source
D-branes on asymmetric orbifolds [PDF]
We construct D-brane states on an asymmetric orbifold of type IIA on a four-torus, which is modded out by T-duality. We find explicit boundary states charged under the twisted sector gauge fields. Unlike other cases, the boundary states involve an explicit dependence on the twist fields.
Brunner, Ilka +2 more
openaire +3 more sources
Notes on worldvolume supersymmetries for D-branes on AdS5×S5 background
We revisit the 1/2-BPS D-branes on the AdS5×S5 background. Based only on the classification of 1/2-BPS D-branes obtained by the covariant open string description, we consider various purely static configurations of D-branes without any worldvolume flux ...
Jaemo Park, Hyeonjoon Shin
doaj +1 more source
1/2-BPS D-branes from covariant open superstring in AdS4 × CP3 background
We consider the open superstring action in the AdS4 × CP 3 background and investigate the suitable boundary conditions for the open superstring describing the 1/2-BPS D-branes by imposing the κ-symmetry of the action.
Jaemo Park, Hyeonjoon Shin
doaj +1 more source
Lattice black branes at large D
We explore the phase space of non-uniform black branes compactified on oblique lattices with a large number of dimensions. We find the phase diagrams for different periodicities and angles, and determine the thermodynamically preferred phases for each ...
David Licht, Raimon Luna, Ryotaku Suzuki
doaj +1 more source
BPS D-branes from an Unstable D-brane [PDF]
We search for exact tachyon kink solutions of DBI type effective action describing an unstable D-brane with worldvolume gauge field turned in both the flat and a curved background. There are various kinds of solutions in the presence of electromagnetic fields in the flat space, such as periodic arrays, topological tachyon kinks, half kinks, and bounces.
Kim, Chanju +4 more
openaire +2 more sources
Non-BPS fractional branes with Bose-Fermi cancellation in asymmetric orbifolds
We study non-BPS D-branes in the type II string vacua with chiral space-time SUSY constructed based on the asymmetric orbifolds of K3≅T4/ℤ2 $$ \mathrm{K}3\cong {T}^4/{\mathrm{\mathbb{Z}}}_2 $$ as a succeeding work of [21].
Yuji Sugawara, Takahiro Uetoko
doaj +1 more source
Disformally coupled cosmologies arise from Dirac-Born-Infeld actions in Type II string theories, when matter resides on a moving hidden sector D-brane. Since such matter interacts only very weakly with the standard model particles, this scenario can provide a natural origin for the dark sector of the universe with a clear geometrical interpretation ...
Koivisto, Tomi +2 more
openaire +4 more sources
Introduction to D-Branes [PDF]
13 pages, 4 figures, Latex, espcrc2.sty. Lectures presented at the 33rd Karpacz Winter School of Theoretical Physics, Karpacz, Poland, 13-22 February ...
openaire +3 more sources
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
doaj +1 more source

