Dynamical equations of quantum information and interference

Bi Qiao, H.E. Ruda and Z.D. Zhou

Physica A: Statistical Mechanics and its Applications, 2006, vol. 364, issue C, 170-182

Abstract: Several dynamical equations for quantum information density (QID) in an open quantum electrodynamic system are studied. We discuss extending the kinetic equation of QID to the domain of quantum fields. To do this, we start from the Schwinger–Tomonaga equation and related kinetic equations for QID in an open quantum electrodynamic system by combining approaches of quantum field theory and Liouville equation. The property of evolution of QID by studying the evolution of density operator is also studied in an quantum interference model based on hexagonal nanowire loop.

Keywords: Quantum information; Quantum interference; Liouville equation (search for similar items in EconPapers)
Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:364:y:2006:i:c:p:170-182

DOI: 10.1016/j.physa.2005.08.081

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