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hep-th2024
String Field Theory: A Review
Ashoke Sen, Barton Zwiebach
As of today there exist consistent, gauge-invariant string field theories describing all string theories: bosonic open and closed strings, open superstrings, heterotic strings and…
hep-th2024
On the normalization of open-closed string amplitudes
Ashoke Sen, Barton Zwiebach
We use the factorization constraints of open-closed string field theory to determine the signs and normalizations of general string amplitudes with both open and closed string exte…