Wick order, spreadability and exchangeability for monotone commutation relations


Abstract in English

We exhibit a Hamel basis for the concrete $*$-algebra $mathfrak{M}_o$ associated to monotone commutation relations realised on the monotone Fock space, mainly composed by Wick ordered words of annihilators and creators. We apply such a result to investigate spreadability and exchangeability of the stochastic processes arising from such commutation relations. In particular, we show that spreadability comes from a monoidal action implementing a dissipative dynamics on the norm closure $C^*$-algebra $mathfrak{M} = overline{mathfrak{M}_o}$. Moreover, we determine the structure of spreadable and exchangeable monotone stochastic processes using their correspondence with sp-reading invariant and symmetric monotone states, respectively.

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