D-branes in a big bang/big crunch universe: Misner space

Hikida, Yasuaki; Nayak, Rashmi R.; Panigrahi, Kamal L.

doi:10.1088/1126-6708/2005/09/023

Cited by 32 publications

(42 citation statements)

References 71 publications

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“…Note also the omitted i in our convention in contrast to usual notion. These D-strings are also unstable [15], and the interpretation in matrix theory is essentially the same as for D0-branes and the geometry. We add some small perturbations, say change q 11 to q 11 + σ, and the real part of the action becomes now 15) leading to the "rolling" behavior of the matrix elements and thus D-string's emitting open or closed strings.…”

Section: Jhep01(2006)002mentioning

confidence: 97%

“…These D-strings are also unstable [15], and the interpretation in matrix theory is essentially the same as for D0-branes and the geometry. We add some small perturbations, say change q 11 to q 11 + σ, and the real part of the action becomes now 15) leading to the "rolling" behavior of the matrix elements and thus D-string's emitting open or closed strings. The universality of the interpretation of instabilites of D0-and D1-branes provides further evidence that D0-branes do not decay for their "wrong dimensionality" and the region around (5.5) has a more suitable description as type-IIA string theory.…”

Section: Jhep01(2006)002mentioning

confidence: 97%

“…For Misner universe, the singularity is localized in sub-string region in the time direction, so we will use D-instantons as probes. Recently, D0 and D1-branes in Misner space were studied in [15], and it was found that they are both unstable due to open string pair production and closed string emission.…”

Section: Jhep01(2006)002mentioning

confidence: 99%

“…It is pointed out in [15] that D0-branes in Misner universe are actually unstable, they are subject to open string pair creation. Since we regard our instanton action to be a second quantized description of Misner universe, such phenomena should be reproduced.…”

Section: Jhep01(2006)002mentioning

confidence: 99%

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A matrix model for Misner universe and closed string tachyons

She

2006

J. High Energy Phys.

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We use D-instantons to probe the geometry of Misner universe, and calculate the world volume field theory action, which is of the 1+0 dimensional form and highly nonlocal. Turning on closed string tachyons, we see from the deformed moduli space of the D-instantons that the spacelike singularity is removed and the region near the singularity becomes a fuzzy cone, where space and time do not commute. When realized cosmologically there can be controllable trans-planckian effects. And the infinite past is now causally connected with the infinite future, thus also providing a model for big crunch/big bang transition. In the spirit of IKKT matrix theory, we propose that the D-instanton action here provides a holographic description for Misner universe and time is generated dynamically. In addition we show that winding string production from the vacua and instability of D-branes have simple uniform interpretations in this second quantized formalism.

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Section: Jhep01(2006)002mentioning

confidence: 97%

Section: Jhep01(2006)002mentioning

confidence: 97%

Section: Jhep01(2006)002mentioning

confidence: 99%

Section: Jhep01(2006)002mentioning

confidence: 99%

See 2 more Smart Citations

A matrix model for Misner universe and closed string tachyons

She

2006

J. High Energy Phys.

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“…The analysis of an intersecting two-brane system is similar. The second term in the Ricci scalar is proportional to 9) in the limit of r = 0. It diverges except for the cases of q A + q B = 6 andq = 1, that is, D1-D5, D2-D4 and D3-D3 intersecting-brane systems.…”

Section: Singularitymentioning

confidence: 99%

Supersymmetric intersecting branes in time-dependent backgrounds

Ohta

Panigrahi

2006

Phys. Rev. D

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We construct a fairy general family of supersymmetric solutions in time-and spacedependent backgrounds in general supergravity theories. One class of the solutions are intersecting brane solutions with factorized form of time-and space-dependent metrics, the second class are brane solutions in pp-wave backgrounds carrying spacetime-dependence, and the final class are the intersecting branes with more nontrivial spacetime-dependence, and their intersection rules are given. Physical properties of these solutions are discussed, and the relation to existing literature is also briefly mentioned. The number of remaining supersymmetries are identified for various configurations including single branes, D1-D5, D2-D6-branes with nontrivial dilaton, and their possible dual theories are briefly discussed.

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Supersymmetric intersecting branes on the waves

Maeda

Ohta

Tanabe

et al. 2010

J. High Energ. Phys.

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We construct a general family of supersymmetric solutions in time-and space-dependent wave backgrounds in general supergravity theories describing single and intersecting p-branes embedded into time-dependent dilaton-gravity plane waves of an arbitrary (isotropic) profile, with the brane world-volume aligned parallel to the propagation direction of the wave. We discuss how many degrees of freedom we have in the solutions. We also propose that these solutions can be used to describe higher-dimensional time-dependent "black holes", and discuss their property briefly.The understanding of the fundamental nature and quantum properties of spacetime is one of the most important questions in theoretical physics. An example of such problems is the spacetime singularities that general relativity predicts especially in time-dependent setting. However, time-dependent solutions are rather difficult subject in the effective string theories [1]- [6]. Dilaton-gravity plane waves provide a rare example of tractable strongly curved (possibly singular) time-dependent space-time backgrounds. They also allow a formulation of (time-dependent) matrix theories of quantum gravity [7]- [36]. Other time-dependent brane solutions, though nonsupersymmetric, are discussed in [37,38].Brane supergravity solutions also plays important role [39]-[43], since they lead to the formulation of the AdS/CFT correspondence. Hence, it is important to derive supergravity p-branes embedded into dilaton-gravity plane waves.In a recent paper [44], the simplest of these solutions which are supersymmetric configurations corresponding to time-dependent extremal p-branes aligned along the propagation direction of the plane wave were obtained generalizing earlier work [6,29]. These solutions are restricted to single brane solutions. It has been known that this class of solutions can be extended to much more general intersecting brane configurations, and it would be interesting to see if the solutions can be generalized to such general configurations.In our previous paper [36], we have given closely related solutions for intersecting branes with wave, but we gave supersymmetric solutions without wave as examples of our solutions. This actually restrict possible solutions considerably. In this paper we revisit this class of solutions, and show that our previous solutions actually give a very general family of solutions which are wider than those for single brane in Ref. [44]. Our solutions involve many arbitrary functions and we examine how many degrees of freedom we have. We also discuss some physical applications of these solutions to black hole physics. In particular, we consider intersecting D1-D5 brane system, and show that we can effectively compactify it to five dimensions though close to the possible horizon six-dimensional nature of the solution reappears.This paper is organized as follows. In the next section, we briefly summarize our solutions derived in our previous paper [36], where we set wave profile to zero. This gave a strong restriction on the solu...

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D-branes in a big bang/big crunch universe: Misner space

Cited by 32 publications

References 71 publications

A matrix model for Misner universe and closed string tachyons

A matrix model for Misner universe and closed string tachyons

Supersymmetric intersecting branes in time-dependent backgrounds

Supersymmetric intersecting branes on the waves

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