# Time and Tachyon

@article{Sen2002TimeAT, title={Time and Tachyon}, author={Ashoke Sen}, journal={International Journal of Modern Physics A}, year={2002}, volume={18}, pages={4869-4888} }

Recent analysis suggests that the classical dynamics of a tachyon on an unstable D-brane is described by a scalar Born–Infeld type action with a runaway potential. The classical configurations in this theory at late time are in one to one correspondence with the configuration of a system of noninteracting (incoherent), nonrotating dust. We discuss some aspects of canonical quantization of this field theory coupled to gravity, and explore, following an earlier work on this subject, the…

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## 68 References

### Does the Tachyon Matter

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Abstract We study time-dependent solutions of Einstein–Maxwell gravity in four dimensions coupled to tachyon matter—the Dirac–Born–Infeld Lagrangian that provides an effective description of a…

### Rolling Tachyon

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We discuss construction of classical time dependent solutions in open string (field) theory, describing the motion of the tachyon on unstable D-branes. Despite the fact that the string field theory…

### Field Theory of Tachyon Matter

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We propose a field theory for describing the tachyon on a brane–antibrane system near the minimum of the potential. This field theory realizes two known properties of the tachyon effective action:…

### Rolling the tachyon in super BSFT

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We investigate the rolling of the tachyon on the unstable D9 brane in type IIA string theory by studying the BSFT action. The action is known for linear profiles of the tachyon, which is the expected…

### Gravitational Approach to Tachyon Matter (超弦理論の展望)

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The studies of dynamics of the tachyon on Dp — Dp brane system or unstable D-branes attract great interests since they gives the important non-perturb at ive and off-shell knowledge of string theory.…

### Dynamics with Infinitely Many Time Derivatives and Rolling Tachyons

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Both in string field theory and in p-adic string theory the equations of motion involve infinite number of time derivatives. We argue that the initial value problem is qualitatively different from…

### Gauge Fields and Scalars in Rolling Tachyon Backgrounds

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We investigate the dynamics of gauge and scalar fields on unstable D-branes with rolling tachyons. Assuming an FRW metric on the brane, we find a solution of the tachyon equation of motion which is…

### Time Evolution in Open String Theory

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We discuss a general iterative procedure for constructing time dependent solutions in open string theory describing rolling of a generic tachyon field away from its maximum. These solutions are…

### Tachyon Matter in Boundary String Field Theory

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We analyse the classical decay process of unstable D-branes in superstring theory using the boundary string field theory (BSFT) action. We show that the solutions of the equations of motion for the…