Inequivalent -graded Brackets, -bit Parastatistics and Statistical Transmutations of Supersymmetric Quantum Mechanics
M.M. Balbino (CBPF, Rua Dr. Xavier Sigaud 150, Urca, cep 22290-180, Rio de Janeiro RJ, Brazil); I.P. de Freitas (CBPF, Rua Dr. Xavier Sigaud 150, Urca, cep 22290-180, Rio de Janeiro RJ, Brazil); R.G. Rana (CBPF, Rua Dr. Xavier Sigaud 150, Urca, cep 22290-180, Rio de Janeiro RJ, Brazil); F. Toppan (CBPF, Rua Dr. Xavier Sigaud 150, Urca, cep 22290-180, Rio de Janeiro RJ, Brazil)
Given an associative ring of -graded operators, the number of inequivalent brackets of Lie-type which are compatible with the grading and satisfy graded Jacobi identities is . This follows from the Rittenberg-Wyler and Scheunert analysis of “color” Lie (super)algebras which is revisited here in terms of Boolean logic gates.The inequivalent brackets, recovered from mappings, are defined by consistent sets of commutators/anticommutators describing particles accommodated into an n-bit parastatistics (ordinary bosons/fermions correspond to 1 bit). Depending on the given graded Lie (super)algebra, its graded sectors can fall into different classes of equivalence expressing different types of particles (bosons, parabosons, fermions, parafermions). As a consequence, the assignment of certain “marked” operators to a given graded sector is a further mechanism to induce inequivalent graded Lie (super)algebras (the basic examples of quaternions, split-quaternions and biquaternions illustrate these features).As a first application we construct and -graded quantum Hamiltonians which respectively admit and inequivalent multiparticle quantizations (the inequivalent parastatistics are discriminated by measuring the eigenvalues of certain observables in some given states). The extension to -graded quantum Hamiltonians for is immediate.As a main physical application we prove that the -extended, one-dimensional supersymmetric and superconformal quantum mechanics, for , are respectively described by alternative formulations based on the inequivalent graded Lie (super)algebras. The numbers correspond to all possible “statistical transmutations” of a given set of supercharges which, for , are accommodated into a -grading with (the identification is ).In the simplest setting (the 2-particle sector of the de Alfaro-Fubini-Furlan deformed oscillator with spectrum-generating superalgebra), the -graded parastatistics imply a degeneration of the energy levels which cannot be reproduced by ordinary bosons/fermions statistics.
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