Fluctuations around the tachyon vacuum in open string field theoryopen access
- Authors
- Kwon, O Kab; Lee, Bum Hoon; Park, Chanyong; Sin, Sang Jin
- Issue Date
- Dec-2007
- Publisher
- SPRINGER
- Keywords
- string field theory; tachyon condensation
- Citation
- JOURNAL OF HIGH ENERGY PHYSICS, no.12, pp.1 - 16
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF HIGH ENERGY PHYSICS
- Number
- 12
- Start Page
- 1
- End Page
- 16
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/179266
- DOI
- 10.1088/1126-6708/2007/12/038
- ISSN
- 1126-6708
- Abstract
- We consider quadratic fluctuations around the tachyon vacuum numerically in open string field theory. We work on a space H-vac(N) spanned by basis string states used in the Schnabl's vacuum solution. We show that the truncated form of the Schnabl's vacuum solution on H-vac(N) is well-behaved in numerical work. The orthogonal basis for the new BRST operator (Q) over tilde on H-N(vac) and the quadratic forms of potentials for independent fields around the vacuum are obtained. Our numerical results support that the Schnabl's vacuum solution represents the minimum energy solution for arbitrary fluctuations also in open string field theory.
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