Quantum stochastic processes arising from the strong resolvent limits of the Schrödinger evolution in Fock space
Volume 43 / 1998
Banach Center Publications 43 (1998), 119-133
DOI: 10.4064/-43-1-119-133
Abstract
By using F. A. Berezin's canonical transformation method [5], we derive a nonadapted quantum stochastic differential equation (QSDE) as an equation for the strong limit of the family of unitary groups satisfying the Schrödinger equation with singularly degenerating Hamiltonians in Fock space. Stochastic differentials of QSDE generate a nonadapted associative Ito multiplication table, and the coefficients of these differentials satisfy the formal unitarity conditions of the Hudson-Parthasarathy type [10].
