Random Walk and Diffusion on a Smash Line Algebra

Details Random Walk and Diffusion on a Smash Line Algebra Random Walk and Diffusion on a Smash Line Algebra

2002-04-25

arxiv.org/abs/quant-ph/0204148v1

Physics

Quantum Physics

24 pages, 1 figure attached in ps format

Scientific paper

Working withing the framework of Hopf algebras, a random walk and the associated diffusion equation are constructed on a space that is algebraically described as the merging of the real line algebra with the anyonic line algebra. Technically this merged structure is a smash algebra, namely an algebra resulting by a braided tensoring of real with anyonic line algebras. The motivation of introducing the smashing results from the necessity of having non commuting increments in the random walk. Based on the observable-state duality provided by the underlying Hopf structure, the construction is cast into two dual forms: one using functionals determined by density probability functions and the other using the associated Markov transition operator. The ensuing diffusion equation is shown to possess triangular matrix realization. The study is completed by the incorporation of Hamiltonian dynamics in the above random walk model, and by the construction of the dynamical equation obeyed by statistical moments of the problem for generic entangled density functions.

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