Cosmological creation of D-branes and anti-D-branes

Abstract:We continue with the analysis of finite temperature corrections to the Tachyon mass in intersecting branes which was initiated in [1]. In this paper we extend the computation to the case of intersecting D3 branes by considering a setup of two intersecting branes in flat-space background. A holographic model dual to BCS superconductor consisting of intersecting D8 branes in D4 brane background was proposed in [2]. The background considered here is a simplified configuration of this dual model. We compute the one-loop Tachyon amplitude in the Yang-Mills approximation and show that the result is finite. Analyzing the amplitudes further we numerically compute the transition temperature at which the Tachyon becomes massless. The analytic expressions for the one-loop amplitudes obtained here reduce to those for intersecting D1 branes obtained in [1] as well as those for intersecting D2 branes.

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“…When θ = π we have a brane-antibrane system. This was analyzed at finite temperature in [45] and further studied in [46].…”

Section: Jhep04(2017)109mentioning

confidence: 99%

Finite temperature corrections to tachyon mass in intersecting D-branes

Sethi

Chowdhury

Sarkar

2017

J. High Energ. Phys.

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“…Eq. (25) represents that the wave form is obtained by taking the sum of the amplitude ratio |u( x j )| 1/2 of each images with the phase factor e iωT ( xj )−iπnj . If the lens is the straight string, the spacetime is locally flat everywhere except for right on the string.…”

Section: B Geometrical Optics Limitmentioning

confidence: 99%

“…In this scenario inflation is driven by the attractive force between parallel Dbranes and parallel anti D-branes in a higher dimensional spacetime. When those brane-anti-brane pairs collide and annihilate at the end of inflation, lower-dimensional D-branes, which behave like monopoles, cosmic strings or domain walls from the view point of four-dimensional observers, are formed generically [25,26,27,28,29].…”

Section: Introductionmentioning

confidence: 99%

Exact wave propagation in a spacetime with a cosmic string

2006

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We present exact solutions of the massless Klein-Gordon equation in a spacetime in which an infinite straight cosmic string resides. The first solution represents a plane wave entering perpendicular to the string direction. We also present and analyze a solution with a static point-like source. In the short wavelength limit these solutions approach the results obtained by using the geometrical optics approximation: magnification occurs if the observer lies in front of the string within a strip of angular width 8πGµ, where µ is the string tension. We find that when the distance from the observer to the string is less than 10 −3 (Gµ) −2 λ ∼ 150Mpc(λ/AU)(Gµ/10 −8 ) −2 , where λ is the wave length, the magnification is significantly reduced compared with the estimate based on the geometrical optics due to the diffraction effect. For gravitational waves from neutron star(NS)-NS mergers the several lensing events per year may be detected by DECIGO/BBO.

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“…We can also envisage more complex arrangements with multiple structures existing simultaneously. This structure is already reminiscent of a brane and anti-brane linked by a defect (or defects) of lower dimension (see Majumdar & Davis 2002;Sarangi & Tye 2002).…”

Section: Discussionmentioning

confidence: 99%

Annihilation of an AB/BA interface pair in superfluid helium-3 as a simulation of cosmological brane interaction

Bradley

Fisher

Guénault

et al. 2008

Phil. Trans. R. Soc. A.

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This study presents measurements of the transport of quasiparticle excitations in the B phase of superfluid 3 He at temperatures below 0.2T c . We find that creating and then removing a layer of A-phase superfluid leads to a measurable increase in the thermal impedance of the background B phase. This increase must be due to the survival of defects created as the AB and BA interfaces on either side of the A-phase layer annihilate. We speculate that a new type of defect may have been formed. The highly ordered A-B interface may be a good analogy for branes discussed in current cosmology. If so, these experiments may provide insight into how the annihilation of branes can lead to the formation of topological defects such as cosmic strings.

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Cosmological creation of D-branes and anti-D-branes

Cited by 139 publications

References 77 publications

Finite temperature corrections to tachyon mass in intersecting D-branes

Finite temperature corrections to tachyon mass in intersecting D-branes

Exact wave propagation in a spacetime with a cosmic string

Annihilation of an AB/BA interface pair in superfluid helium-3 as a simulation of cosmological brane interaction

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