H. Grundling et Ca. Hurst, THE OPERATOR QUANTIZATION OF THE OPEN BOSONIC STRING - FIELD ALGEBRA, Communications in Mathematical Physics, 156(3), 1993, pp. 473-525
Our aim in this paper is to make explicit the operator theory of the h
euristic open Bosonic string and to abstract a suitable field algebra
for the string. This is done on a Fock-Krein space and we examine inte
grability and J-unitary implementability of all the defining transform
ations of the string, i.e. time translations, gauge transformations an
d Poincare transformations. The results obtained agree partially with
those of Bowick and Rajeev, i.e. the gauge transformations do not leav
e the Fock-Krein complex structure invariant. Once we obtained integra
ted transformation groups on a suitable symplectic space for the infin
itesimal transformations of the string, and proved implementability of
these for the Fock-Krein representation, we are then free to define a
n abstract C-algebra carrying all the algebraic information of the st
ring, and to examine different representations.