# Rolling Tachyon

@inproceedings{Sen2002RollingT, title={Rolling Tachyon}, author={Ashoke Sen}, year={2002} }

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 action contains infinite number of time derivatives, and hence it is not a priori clear how to set up the initial value problem, the theory contains a family of time dependent solutions characterized by the initial position and velocity of the tachyon field. We write down the world-sheet action of…

## 1,005 Citations

### Time Evolution in Open String Theory

- Physics
- 2002

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…

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- 2006

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### Light-like tachyon condensation in open string field theory

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### Tachyon field theory description of (thermo)dynamics in dS space

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In this work, we present a few pieces of evidence in support of a possible connection of the gravitational theory in dS space to the world-volume theory of unstable D-branes. We show that the action…

### Light-like tachyon condensation in open string field theory

- Physics
- 2008

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### Tachyon field theory description of (thermo)dynamics in dS space

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- 2015

A bstractIn this work, we present a few pieces of evidence in support of a possible connection of the gravitational theory in dS space to the world-volume theory of unstable D-branes. We show that…

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## References

SHOWING 1-10 OF 31 REFERENCES

### Some exact results on tachyon condensation in string field theory

- Physics
- 2000

The study of open string tachyon condensation in string field theory can be drastically simplified by making an appropriate choice of coordinates on the space of string fields. We show that a very…

### Large marginal deformations in string field theory

- Physics
- 2000

We use the level truncation scheme to obtain accurate descriptions of open bosonic string field configurations corresponding to large marginal deformations such as background Wilson lines. To do so,…

### On Exact Tachyon Potential in Open String Field Theory

- Mathematics
- 2000

In these notes we revisit the tachyon lagrangian in the open string field theory using background independent approach of Witten from 1992. We claim that the tree level lagrangian (up to second order…

### Universality of the tachyon potential

- Physics
- 1999

Using string field theory, we argue that the tachyon potential on a D-brane in bosonic string theory in arbitrary background has a universal form, independent of the boundary conformal field theory…

### D-branes as tachyon lumps in string field theory

- Physics
- 2000

It has been conjectured that the tachyonic lump solution of the open bosonic string field theory describing a D-brane represents a D-brane of one lower dimension. We place the lump on a circle of…

### String theory and noncommutative geometry

- Mathematics, Physics
- 1999

We extend earlier ideas about the appearance of noncommutative geometry in string theory with a nonzero B-field. We identify a limit in which the entire string dynamics is described by a minimally…