A Note on the Tachyon State in Vacuum String Field Theory

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dc.creatorRashkov, R
dc.creatorViswanathan, K S
dc.date2001-12-20
dc.date.accessioned2026-07-07T04:12:52Z
dc.date.available2026-07-07T04:12:52Z
dc.descriptionWe re-examine the recent proposal of Rastelli, Sen and Zwiebach on the tachyon fluctuation of the vacuum string field theory representing a D25 brane, originally considered by Hata and Kawano. We show that the tachyon state satisfies the linearized equations of motion on-shell in the strong sense thereby allowing us to calculate the ratio of energy density to the tension of the D-brane to be $E_c/T_{25}\simeq π^2/3[1/16(ln2)^3]\simeq 0.62$. Our proof relies on a careful handling of the limits ($n\to\infty$) involved in the conformal theory description of the sliver and tachyon states. We conjecture that the sliver state represents a single D25 brane.
dc.description10 pages
dc.identifierhttps://arxiv.org/abs/hep-th/0112202
dc.identifierhttp://arxiv.org/abs/hep-th/0112202
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/51057
dc.subjectHigh Energy Physics - Theory
dc.titleA Note on the Tachyon State in Vacuum String Field Theory
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