Summary
The-infinitesimal generators of the infinite-dimensional conformal algebra in two space-time dimensions are constructed from the stress tensor. The conformal covariance of the operator product expansion in the Thirring model is verified, but the vacuum state is found to be invariant only under theO 2,2 subalgebra of the infinite conformal algebra.
Riassunto
Si costruiscono i generatori infinitesimi dell’algebra conforme in due dimensioni spazio-temporali, algebra che risulta essere ad infiniti generatori, a partire dal tensore energia-impulso della teoria. Si verifica esplicitamente la covarianza conforme dell’espansione operatoriale nel modello di Thirring. Però si trova che lo stato di vuoto è invariante soltanto sotto la sottoalgebraO 2,2 della completa algebra conforme.
Реэюме
Иэ тенэора напряжений конструируются бесконечно малые генераторы бесконечномерной конформной алгебры в двух пространственно-временных иэмерениях. Проверяется конформная ковариантность раэложения проиэведения операторов в модели Тирринга. Однако, обнаружено, что вакуумное состояние является инвариантным только относительно суб’алгебрыO 2, 2 бесконечной конформной алгебры.
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References
W. Thirring:Ann. of Phys.,3, 91 (1958);K. Johnson:Nuovo Cimento,20, 773 (1961).
C. G. Callan jr.,S. Coleman andR. Jackiw:Am. Journ. Phys.,59, 42 (1970).
See for example:G. Veneziano:Progress in the theory and application of dual models, MIT preprint (April 1971);V. Alessandrini andD. Amati:Proc. S.I.F., Course LIV (to be published), CERN preprint TH. 1925 (1971);E. Del Giudice, P. Di Vecchia andS. Fubini:General properties of dual-resonance models, MIT preprint (June 1971), to appear inAnn. of Phys., and references quoted therein.
We are studying the implications of our result in connection with a recent proposal byE. Del Giudice, P. Di Vecchia, S. Fubini andR. Musto:Light-cone physics and duality, MIT preprint (April 1972), to appear inNuovo Cimento.
S. Ferrara, R. Gatto, A. F. Grillo andG. Parisi:Lett. Nuovo Cimento,4, 115 (1972).
G. F. Dell’Antonio, Y. Frishman andD. Zwanziger: preprint Weizman Institute, WIS 71/44-Ph.
D. G. Boulware, L. S. Brown andR. D. Peccei:Phys. Rev. D,2, 293 (1970).
S. Ferrara, R. Gatto andA. F. Grillo:Lett. Nuovo Cimento,2, 1363 (1971).
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Ferrara, S., Grillo, A.F. & Gatto, R. Conformal algebra in two space-time dimensions and the thirring model. Nuov Cim A 12, 959–968 (1972). https://doi.org/10.1007/BF02747859
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DOI: https://doi.org/10.1007/BF02747859