scholarly journals Novel string field theory with also negative energy constituents/objects gives Veneziano amplitude

2018 ◽  
Vol 2018 (2) ◽  
Author(s):  
H.B. Nielsen ◽  
M. Ninomiya
Keyword(s):  
Field Theory ◽  
String Field Theory ◽  
Negative Energy ◽  
Veneziano Amplitude

RELATION BETWEEN BATALIN-VILKOVISKY AND FIRST-QUANTIZED- STYLE BRST

1989 ◽  
Vol 04 (14) ◽  
pp. 3705-3716 ◽  
Author(s):  
W. SIEGEL
Keyword(s):  
Field Theory ◽  
String Field Theory

We show that first-quantized-style Becchi-Rouet-Stora-Tyutin operators, such as those which occur in string field theory, are just those of the Batalin-Vilkovisky method, up to some minor modifications. Thus, string field theory can be quantized directly, without fields additional to the original one.

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.

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.

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