Rolling closed string tachyons and the big crunch

Yang, Haitang; Zwiebach, Barton

doi:10.1088/1126-6708/2005/08/046

Cited by 51 publications

(115 citation statements)

References 21 publications

Supporting

Mentioning

111

Contrasting

Order By: Relevance

“…The tachyon potential is supposed to satisfy the following properties [69] conditions. However, it is fair to say that one of the assumptions V (∞) = 0 has not been completely well-established (some counter evidences have been recently discussed in [73]).…”

Section: Effective Action Argument Of Null Boundariesmentioning

confidence: 99%

AdS bubbles, entropy and closed string tachyons

Nishioka

Takayanagi

2007

J. High Energy Phys.

203

309

View full text Add to dashboard Cite

We study the conjectured connection between AdS bubbles (AdS solitons) and closed string tachyon condensations. We confirm that the entanglement entropy, which measures the degree of freedom, decreases under the tachyon condensation. The entropies in supergravity and free Yang-Mills agree with each other remarkably. Next we consider the tachyon condensation on the AdS twisted circle and argue that its endpoint is given by the twisted AdS bubble, defined by the double Wick rotation of rotating black 3-brane solutions. We calculated the Casimir energy and entropy and checked the agreements between the gauge and gravity results. Finally we show an infinite boost of a null linear dilaton theory with a tachyon wall (or bubble), leads to a solvable time-dependent background with a bulk tachyon condensation. This is the simplest example of spacetimes with null boundaries in string theory.

show abstract

Section: Effective Action Argument Of Null Boundariesmentioning

confidence: 99%

AdS bubbles, entropy and closed string tachyons

Nishioka

Takayanagi

2007

J. High Energy Phys.

203

309

View full text Add to dashboard Cite

show abstract

“…In the case of spatially delocalized tachyon condensation [4,6] the question of allowed states is also of interest. Although time effectively stops in the case of decay to nothing [4], this alone does not preclude unitarity; ordinary quantum mechanics formulated on a finite time interval is unitary.…”

Section: Other Future Directions Cosmological Casementioning

confidence: 99%

“…[1,2,3,4,5,6]). New applications to cosmological and black hole singularities motivate further analysis of the tachyonic phase in order to address basic questions such as unitarity and the process by which black holes explode at the end of Hawking evaporation.…”

Section: Introductionmentioning

confidence: 99%

The inside story: Quasilocal tachyons and black holes

Horowitz

Silverstein

2006

Phys. Rev. D

View full text Add to dashboard Cite

We analyze the fate of excitations in regions of closed string tachyon condensate, a question crucial for understanding unitarity in a class of black holes in string theory. First we introduce a simple new example of quasilocal tachyon condensation in a globally stable AdS/CFT background, and review tachyons' appearance in black hole physics. Then we calculate forces on particles and fields in a tachyon phase using a field theoretic model with spatially localized exponentially growing time dependent masses. This model reveals two features, both supporting unitary evolution in the bulk of spacetime. First, the growing energy of fields sourced by sets of (real and virtual) particles in the tachyon phase yields outward forces on them, leaving behind only combinations which do not source any fields.Secondly, requiring the consistency of perturbative string theory imposes cancellation of a BRST anomaly, which also yields a restricted set of states. Each of these effects supports the notion of a black hole final state arising from string-theoretic dynamics replacing the black hole singularity.

show abstract

“…Interestingly, it was conjectured in [24] that the twisted closed string condensation removes the regions with CTC as the stringy version of chronology protection [25]. Recent related works are given in [26,27,28,29,30,31,32,33].…”

Section: Conclusion 41mentioning

confidence: 99%

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

Hikida

Nayak

Panigrahi

2005

J. High Energy Phys.

View full text Add to dashboard Cite

We study D-branes in a two-dimensional Lorentzian orbifold R 1,1 /Γ with a discrete boost Γ. This space is known as Misner or Milne space, and includes big crunch/big bang singularity. In this space, there are D0-branes in spiral orbits and D1-branes with or without flux on them. In particular, we observe imaginary parts of partition functions, and interpret them as the rates of open string pair creation for D0-branes and emission of winding closed strings for D1-branes. These phenomena occur due to the time-dependence of the background. Open string 2 → 2 scattering amplitude on a D1-brane is also computed and found to be less singular than closed string case. *

show abstract

Rolling closed string tachyons and the big crunch

Cited by 51 publications

References 21 publications

AdS bubbles, entropy and closed string tachyons

AdS bubbles, entropy and closed string tachyons

The inside story: Quasilocal tachyons and black holes

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

Contact Info

Product

Resources

About