Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-02-19
JHEP 0310:048,2003
Physics
High Energy Physics
High Energy Physics - Theory
42 pages
Scientific paper
10.1088/1126-6708/2003/10/048
The description of string-theoretic s-branes at g_s=0 as exact worldsheet CFTs with a (lambda cosh X^0) or (lambda e^(X^0)) boundary interaction is considered. Due to the imaginary-time periodicity of the interaction under X^0 -> X^0 + 2 pi i, these configurations have intriguing similarities to black hole or de Sitter geometries. For example, the open string pair production as seen by an Unruh detector is thermal at temperature T = 1/4 pi. It is shown that, despite the rapid time dependence of the s-brane, there exists an exactly thermal mixed state of open strings. The corresponding boundary state is constructed for both the bosonic and superstring cases. This state defines a long-distance Euclidean effective field theory whose light modes are confined to the s-brane. At the critical value of the coupling lambda=1/2, the boundary interaction simply generates an SU(2) rotation by pi from Neumman to Dirichlet boundary conditions. The lambda=1/2 s-brane reduces to an array of sD-branes (D-branes with a transverse time dimension) on the imaginary time axis. The long range force between a (bosonic) sD-brane and an ordinary D-brane is shown from the annulus diagram to be 11/12 times the force between two D-branes. The linearized time-dependent RR field F=dC produced by an sD-brane in superstring theory is explicitly computed and found to carry a half unit of s-charge Q_s=\int_S *F=1/2, where S is any transverse spacelike slice.
Maloney Alexander
Strominger Andrew
Yin Xi
No associations
LandOfFree
S-Brane Thermodynamics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with S-Brane Thermodynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and S-Brane Thermodynamics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-721751