# Ghost Structure and Closed Strings in Vacuum String Field Theory

@article{Gaiotto2001GhostSA, title={Ghost Structure and Closed Strings in Vacuum String Field Theory}, author={Davide Gaiotto and Leonardo Rastelli and Ashoke Sen and Barton Zwiebach}, journal={Advances in Theoretical and Mathematical Physics}, year={2001}, volume={6}, pages={403-456} }

We complete the construction of vacuum string field theory by proposing a canonical choice of ghost kinetic term – a local insertion of the ghost field at the string midpoint with an infinite normalization. This choice, supported by level expansion studies in the Siegel gauge,

## 74 Citations

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## References

SHOWING 1-10 OF 49 REFERENCES

### Observables of String Field Theory

- Physics, Mathematics
- 2002

We study gauge invariant operators of open string field theory and find a precise correspondence with on-shell closed strings. We provide a detailed proof of the gauge invariance of the operators and…

### Vacuum string field theory

- Physics
- 2001

This is a brief review of vacuum string field theory, a new approach to open string field theory based on the stable vacuum of the tachyon. We discuss the sliver state explaining its role as a…

### Analytical construction of a nonperturbative vacuum for the open bosonic string

- Physics
- 2001

Using analytical methods, a nonperturbative vacuum is constructed recursively in the field theory for the open bosonic string. Evidence suggests it corresponds to the Lorentz-invariant end point of…

### On Field Theory of Open Strings, Tachyon Condensation and Closed Strings

- Physics
- 2001

I review the physical properties of different vacua in the background independent open string field theory. Talk presented at Strings 2001, Mumbai, India, this http URL

### Seminar 7 On a Field Theory of Open Strings, Tachyon Condensation and Closed Strings

- Physics
- 2002

I review the physical properties of different vacua in the background independent open string field theory.

### Some properties of string field algebra

- Physics
- 2001

We examine string field algebra which is generated by star product in Witten's string field theory including ghost part. We perform calculations using oscillator representation consistently. We…

### Siegel Gauge in Vacuum String Field Theory

- Physics
- 2001

We study the star algebra of ghost sector in vacuum string field theory (VSFT). We show that the star product of two states in the Siegel gauge is BRST exact if we take the BRST charge to be the one…

### Split string field theory I

- Mathematics
- 2001

We describe the ghost sector of cubic string field theory in terms of degrees of freedom on the two halves of a split string. In particular, we represent a class of pure ghost BRST operators as…

### Split string field theory II

- Mathematics
- 2001

We describe the ghost sector of cubic string field theory in terms of degrees of freedom on the two halves of a split string. In particular, we represent a class of pure ghost BRST operators as…