Free bosonic string field theory without supplementary fields

1988 ◽  
Vol 29 (8) ◽  
pp. 1916-1929 ◽  
Author(s):  
Franz Embacher
Keyword(s):  
Field Theory ◽  
String Field Theory ◽  
Bosonic String

BOUNDARY CONDITIONS IN FIRST QUANTIZATION

1991 ◽  
Vol 06 (22) ◽  
pp. 3997-4008 ◽  
Author(s):  
W. SIEGEL
Keyword(s):  
Field Theory ◽  
General Solution ◽  
Boundary Conditions ◽  
String Field Theory ◽  
Light Cone ◽  
Bosonic String ◽  
Second Quantization ◽  
Spinning Particles

In the BRST approach to first quantization, bosonic ghosts can cause ambiguities in the cohomology (and thus in second quantization). We show how nonminimal terms give a general solution to this problem, avoiding the need for “picture-changing operators.” As examples, we consider spinning particles, superparticles, covariantized light cone bosonic string field theory, and NSR superstring field theory.

scholarly journals Mapping between Witten and lightcone string field theories

2021 ◽  
Vol 2021 (11) ◽  
Author(s):  
Theodore Erler ◽  
Hiroaki Matsunaga
Keyword(s):  
Field Theory ◽  
String Field Theory ◽  
Bosonic String ◽  
Field Theories

Abstract We propose a transformation between the off-shell field variables of Witten’s open bosonic string field theory and the traditional lightcone string field theory of Kaku and Kikkawa, based on Mandelstam’s interacting string picture. This is accomplished by deforming the Witten vertex into lightcone cubic and quartic vertices, followed by integrating out the ghost and lightcone oscillator excitations from the string field. Surprisingly, the last step does not alter the cubic and quartic interactions and does not generate effective vertices, and leads precisely to Kaku and Kikkawa’s lightcone string field theory.

New BRST quantization of the bosonic string and string field theory

1987 ◽  
Vol 190 (1-2) ◽  
pp. 81-85 ◽  
Author(s):  
Chuan-Jie Zhu ◽  
Yu-Jie Zhu ◽  
Ke Wu ◽  
Yuan-Zhong Zhang
Keyword(s):  
Field Theory ◽  
String Field Theory ◽  
Brst Quantization ◽  
Bosonic String
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