The quantum random walk within the Schrödinger-Langevin approach

M.O. CÁCERES; A.K. CHATTAH

JOURNAL OF MOLECULAR LIQUIDS

Elsevier

Año: 1997 vol. 71 p. 187 - 187

0167-7322

p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none">The Quantum Master Equation is derived by generalizing the  van Kampen method. Starting with a stochastic SehrSdinger equation and taking into account the finite quantum correlation-time of the thermal bath, we have proved a Fluctuation-Dissipation like relation, which preserves normalization on p. A tight-binding like hamiltonian in interaction with a phonon bath has been worked out within our approach. The contimmus limits is also studied.