Frictional quantum decoherence

Bruno Bellomo, Stephen M. Barnett, John Jeffers

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The dynamics associated with a measurement-based master equation for quantum Brownian motion are investigated. A scheme for obtaining time evolution from general initial conditions is derived. This is applied to analyse dissipation and decoherence in the evolution of both a Gaussian and a Schrodinger cat initial state. Dependence on the diffusive terms present in the master equation is discussed with reference to both the coordinate and momentum representations.

Original languageEnglish
Pages (from-to)9437-9453
Number of pages17
JournalJournal of Physics A: Mathematical and Theoretical
Issue number31
Publication statusPublished - 3 Aug 2007


  • brownian-motion
  • master equation
  • dissipation


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