A note on Gaussian integrals over para-Grassmann variables

We discuss the generalization of the connection between the determinant of an operator entering a quadratic form and the associated Gaussian path-integral valid for Grassmann variables to the para-Grassmann case [θp+1 = 0 with p = 1 (p > 1) for Grassmann (para-Grassmann) variables]. We show t...

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Autores principales: Cugliandolo, L.F., Lozano, G.S., Moreno, E.F., Schaposnik, F.A.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0217751X_v19_n11_p1705_Cugliandolo
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Sumario:We discuss the generalization of the connection between the determinant of an operator entering a quadratic form and the associated Gaussian path-integral valid for Grassmann variables to the para-Grassmann case [θp+1 = 0 with p = 1 (p > 1) for Grassmann (para-Grassmann) variables]. We show that the q-deformed commutation relations of the para-Grassmann variables lead naturally to consider q-deformed quadratic forms related to multiparametric deformations of GL(n) and their corresponding q-determinants. We suggest a possible application to the study of disordered systems.