Closed strings as imaginary D-branes

By D. Gaiotto, N. Itzhaki, L. Rastelli. 2003

145 citations recorded by the source corpus.

Abstract Sen has recently drawn attention to an exact time-dependent boundary conformal field theory with the space–time interpretation of brane creation and annihilation. An interesting limit of this BCFT is formally equivalent to an array of D-branes located in imaginary time. This raises the question: what is the meaning of D-branes in imaginary time? The answer we propose is that D-branes in imaginary time define purely closed string backgrounds. In particular we prove that the disk scattering amplitude of m closed strings off an arbitrary configuration of imaginary branes is equivalent to a sphere amplitude with m +1 closed string insertions. The extra puncture is a specific closed string state, generically normalizable, that depends on the details of the brane configuration. We study in some detail the special case of the array of imaginary D-branes related to Sen's BCFT and comment on its space–time interpretation. We point out that a certain limit of our set-up allows to study classical black hole creation and suggests a relation between Choptuik's critical behavior and a phase-transition a la Gregory–Laflamme. We speculate that open string field theory on imaginary D-branes is dual to string theory on the corresponding closed string background.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/f3aa5817ac486827b84fb104adf56578940c9403

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. V. Hubeny
2. J. Maldacena
3. D. Stanford
4. D. Harlow
5. T. Takayanagi
6. L. Rastelli
7. S. Shenker
8. John McGreevy

In Nuclear and High Energy Physics

1. J. Maldacena
2. V. Hubeny
3. D. Stanford
4. D. Harlow
5. S. Shenker
6. T. Takayanagi
7. L. Rastelli
8. E. Witten

Citations in the corpus

• Classical and quantum D-branes in 2D string theory (2003, background): “13) are the matrix model description of the contact terms involved in exponentiating the boundary state into a shift in the closed-string background [26].”
• A matrix model dual of type 0B string theory in two dimensions (2003, unknown): “the process of open string tachyon condensation [19, 20, 21, 22, 23, 24, 25, 26, 27, 28 ].”
• Rolling tachyons from Liouville theory (2003, unknown): “[ 23 ], but in our case there exists a quite natural prescription to resolve the problem: If we”
• The black hole singularity in AdS/CFT (2003, background): “Such states have been studied recently in other contexts [53] [54].”
• Analytic solutions for marginal deformations in open string field theory (2007, methodology): “2 we apply this general result to the operator V = e 1 √ α′ X0 [17, 18, 19, 20, 21, 22, 23].”
• Liouville Field Theory — A decade after the revolution (2004, unknown): “More detailed discussion on the D-brane decay can be found in [265], [266], [267], [211], [268], [212], [185], [269], [270], [271], [272], [273], [274], [275], [276], [277], [278], [279], [209], [280], [281], [282], [283], [284], [210], [285], [286], [287], [288].”
• D-brane Decay in Two-Dimensional String Theory (2003, background): “A more detailed study of Dp-brane decay was carried out in [6-24] and led to many new insights.”