5 papers · 1 filter
Universal quadratic field equations via homotopy algebras
Christoph Chiaffrino, Raji Ashenafi Mamade, Barton Zwiebach
We explain how the 'bar-cobar' construction for homotopy algebras reformulates the equations of motion of arbitrary gauge theories as gauge-covariant quadratic equations for an ext…
Type II RR string fields and exotic diffeomorphisms
Raji Ashenafi Mamade, Barton Zwiebach
We study the theory of massless fields of type II strings arising from the string field theory that uses two string fields, a physical one and an extra one that allows the writing…
Gauge algebra and diffeomorphisms in string field theory
Raji Ashenafi Mamade, Barton Zwiebach
We consider the gauge algebra of closed string field theory with a focus on diffeomorphisms. This algebra contains off-shell information in two ways. The first way is geometric, th…
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…
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…