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Prog. Theor. Phys. Vol. 114 No. 3 (2005) pp. 695-706

Classical Solutions and Order of Zeros in Open String Field Theory

Yuji Igarashi,^1,* Katsumi Itoh,^1,** Fumie Katsumata,^2,*** Tomohiko Takahashi^2,**** and Syoji Zeze^3,*****

¹Faculty of Education, Niigata University, Niigata 950-2181, Japan
²Department of Physics, Nara Women's University, Nara 630-8506, Japan
³Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan

(Received June 9, 2005)

Abstract:

Earlier an analytic approach is proposed for classical solutions describing tachyon vacuum in open string field theory. Based on the approach, we construct a certain class of classical solutions written in terms of holomorphic functions with higher order zeros. Taking the simplest among the new classical solutions, we study the cohomology of the new BRS charge and make a numerical analysis of the vacuum energy. The results indicate that the new non-trivial solution is another analytic candidate for the tachyon vacuum.

URL : http://ptp.ipap.jp/link?PTP/114/695/
DOI : 10.1143/PTP.114.695

^*E-mail: igarashi@ed.niigata-u.ac.jp
^**E-mail: itoh@ed.niigata-u.ac.jp
^***E-mail: katsumata@asuka.phys.nara-wu.ac.jp
^****E-mail: tomo@asuka.phys.nara-wu.ac.jp
^*****E-mail: zeze@yukawa.kyoto-u.ac.jp

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Citing Article(s) :

1. Progress of Theoretical Physics Vol. 114 No. 6 (2005) pp. 1269-1293 :

   Exploring Vacuum Manifold of Open String Field Theory

   Yuji Igarashi, Katsumi Itoh, Fumie Katsumata, Tomohiko Takahashi and Syoji Zeze

2. Progress of Theoretical Physics Vol. 122 No. 2 (2009) pp. 385-399 :

   Vacuum Structure around Identity-Based Solutions

   Isao Kishimoto and Tomohiko Takahashi

3. Progress of Theoretical Physics Vol. 126 No. 6 (2011) pp. 1077-1089 :

   Homotopy Operators and One-Loop Vacuum Energy at the Tachyon Vacuum

   Shoko Inatomi, Isao Kishimoto and Tomohiko Takahashi

4. Progress of Theoretical Physics Supplement No.188 (2011) pp. 56-62 :

   Application of KBc Subalgebra in String Field Theory

   Syoji Zeze

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