The commutators of standard Virasoro generators and fields generate various representations of the centreless Virasoro algebra depending on a conformal dimension J of the field in question (J is related to the Bargmann index of SU(1,1) generated by L(m), m = 0, +/- 1). We introduce the notion of q-conformal dimension for various oscillator realizations of q-deformed Virasoro (super)algebras proposed earlier, We use the field theoretical approach introduced recently in which the q-Virasoro currents L(alpha)(z) are expressed as Schwinger-like point-split normally ordered quadratic expressions in elementary fields, We extend this approach and probe the elementary fields A(z) (the q-superstring coordinate, momentum and fermionic field) and their powers by the q-Virasoro generators L(m)(alpha) (i.e. we calculate the commutators [L(m)(alpha), A(z)]) and show that to all of them can be assigned just the standard non-deformed conformal dimension.
机构:
Osaka City Univ, Grad Sch Sci, Dept Math & Phys, Osaka, Japan
Osaka City Univ Adv Math Inst OCAMI, Sumiyoshi Ku, Osaka 5588585, JapanOsaka City Univ, Grad Sch Sci, Dept Math & Phys, Osaka, Japan
Itoyama, H.
Oota, T.
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Osaka City Univ Adv Math Inst OCAMI, Sumiyoshi Ku, Osaka 5588585, JapanOsaka City Univ, Grad Sch Sci, Dept Math & Phys, Osaka, Japan
Oota, T.
Yoshioka, R.
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Osaka City Univ Adv Math Inst OCAMI, Sumiyoshi Ku, Osaka 5588585, JapanOsaka City Univ, Grad Sch Sci, Dept Math & Phys, Osaka, Japan
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Harvard Univ, Soc Fellows, Cambridge, MA 02138 USA
Math Sci Res Inst, 1000 Centennial Dr, Berkeley, CA 94720 USAUppsala Univ, Dept Phys & Astron, Box 516, S-75120 Uppsala, Sweden