scholarly journals Relevant deformations in open string field theory: a simple solution for lumps

2011 ◽  
Vol 2011 (11) ◽  
Author(s):  
L. Bonora ◽  
C. Maccaferri ◽  
D. D. Tolla
Keyword(s):  
Field Theory ◽  
String Field Theory ◽  
Open String ◽  
Simple Solution

ONE-LOOP VACUUM ENERGY AT THE TACHYON VACUUM

2013 ◽  
Vol 21 ◽  
pp. 157-158
Author(s):  
SHOKO INATOMI
Keyword(s):  
Field Theory ◽  
Quantum Theory ◽  
String Field Theory ◽  
Vacuum Energy ◽  
Open String ◽  
Brst Operator ◽  
Identity Based ◽  
Homotopy Operators

We consider one-loop vacuum energy at the tachyon vacuum in cubic bosonic open string field theory. The BRST operator Ql in the theory around an identity-based solution is believed to represent a kinetic operator at the tachyon vacuum. Using homotopy operators for Ql, we find that one-loop vacuum energy at the tachyon vacuum is independent of moduli such as interbrane distances. This result can be interpreted as support for the annihilation of D-branes at the tachyon vacuum even in the quantum theory.

scholarly journals Classical Solutions and Order of Zeros in Open String Field Theory

2005 ◽  
Vol 114 (3) ◽  
pp. 695-706 ◽  
Author(s):  
Y. Igarashi ◽  
K. Itoh ◽  
F. Katsumata ◽  
T. Takahashi ◽  
S. Zeze
Keyword(s):  
Field Theory ◽  
String Field Theory ◽  
Open String ◽  
Classical Solutions

scholarly journals Physical states at the tachyonic vacuum of open string field theory

2004 ◽  
Vol 677 (1-2) ◽  
pp. 52-86 ◽  
Author(s):  
S. Giusto ◽  
C. Imbimbo
Keyword(s):  
Field Theory ◽  
String Field Theory ◽  
Open String

The bosonic open string field theory with Wess-Zumino term

1989 ◽  
Vol 217 (4) ◽  
pp. 421-426
Author(s):  
Yu-liang Liu ◽  
Guang-jiong Ni
Keyword(s):  
Field Theory ◽  
String Field Theory ◽  
Open String

scholarly journals Gauge-invariant observables and marginal deformations in open string field theory

2013 ◽  
Vol 2013 (1) ◽  
Author(s):  
Matěj Kudrna ◽  
Toru Masuda ◽  
Yuji Okawa ◽  
Martin Schnabl ◽  
Kenichiro Yoshida
Keyword(s):  
Field Theory ◽  
String Field Theory ◽  
Open String ◽  
Gauge Invariant ◽  
Marginal Deformations

scholarly journals Thermofield dynamics extension of the open string field theory

2016 ◽  
Vol 93 (6) ◽  
Author(s):  
M. Botta Cantcheff ◽  
R. J. Scherer Santos
Keyword(s):  
Field Theory ◽  
String Field Theory ◽  
Open String

scholarly journals Open-closed string correspondence in open string field theory

2008 ◽  
Vol 56 (4-5) ◽  
pp. 343-351 ◽  
Author(s):  
M. Baumgartl ◽  
I. Sachs
Keyword(s):  
Field Theory ◽  
String Field Theory ◽  
Open String ◽  
Closed String

scholarly journals Analytic construction of multi-brane solutions in cubic string field theory for any brane number

2019 ◽  
Vol 2019 (8) ◽  
Author(s):  
Hiroyuki Hata
Keyword(s):  
Field Theory ◽  
String Field Theory ◽  
Equations Of Motion ◽  
Open String ◽  
Three Dimensions ◽  
Simons Theory ◽  
Analytic Construction ◽  
Pure Gauge ◽  
Brane Solution ◽  
Chern Simons

Abstract We present an analytic construction of multi-brane solutions with any integer brane number in cubic open string field theory (CSFT) on the basis of the ${K\!Bc}$ algebra. Our solution is given in the pure-gauge form $\Psi=U{Q_\textrm{B}} U^{-1}$ by a unitary string field $U$, which we choose to satisfy two requirements. First, the energy density of the solution should reproduce that of the $(N+1)$-branes. Second, the equations of motion (EOM) of the solution should hold against the solution itself. In spite of the pure-gauge form of $\Psi$, these two conditions are non-trivial ones due to the singularity at $K=0$. For the $(N+1)$-brane solution, our $U$ is specified by $[N/2]$ independent real parameters $\alpha_k$. For the 2-brane ($N=1$), the solution is unique and reproduces the known one. We find that $\alpha_k$ satisfying the two conditions indeed exist as far as we have tested for various integer values of $N\ (=2, 3, 4, 5, \ldots)$. Our multi-brane solutions consisting only of the elements of the ${K\!Bc}$ algebra have the problem that the EOM is not satisfied against the Fock states and therefore are not complete ones. However, our construction should be an important step toward understanding the topological nature of CSFT, which has similarities to the Chern–Simons theory in three dimensions.

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