Kinetic transport theory with quantum coherence
arXiv:0811.0936 · doi:10.1016/j.nuclphysa.2009.01.050
Abstract
We derive transport equations for fermions and bosons in spatially or temporally varying backgrounds with special symmetries, by use of the Schwinger-Keldysh formalism. In a noninteracting theory the coherence information is shown to be encoded in new singular shells for the 2-point function. Imposing this phase space structure to the interacting theory leads to a a self-consistent equation of motion for a physcial density matrix, including coherence and a well defined collision integral. The method is applied e.g. to demonstrate how an initially coherent out-of-equlibrium state approaches equlibrium through decoherence and thermalization.
4 pages. To appear in the proceedings of the 8th Conference on Strong and Electroweak Matter (SEWM08), Amsterdam, the Netherlands, 26-29 August 2008
References in corpus (5)
- Transport equations for chiral fermions to order \hbar and electroweak baryogenesis: Part I
- Thermalization of fermionic quantum fields
- First principle derivation of semiclassical force for electroweak baryogenesis
- Towards a kinetic theory for fermions with quantum coherence
- Quantum kinetic theory for fermions in temporally varying backrounds
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- Electroweak Baryogenesis in Two Higgs Doublet Models and B meson anomalies
- Experimentally Obtaining Maximal Coherence Via Assisted Distillation Pro cess
- Coherent quasiparticle approximation cQPA and nonlocal coherence
- Flavour mixing transport theory and resonant leptogenesis
- An exact solution of the Dirac equation with CP violation
- Direct estimation of quantum coherence by collective measurements