Collisional decoherence reexamined
By K. Hornberger, J. Sipe. 2003
135 citations recorded by the source corpus.
We rederive the quantum master equation for the decoherence of a massive Brownian particle due to collisions with lighter particles from a thermal environment. Our careful treatment avoids the occurrence of squares of Dirac {delta} functions. It leads to a decoherence rate that is smaller by a factor of 2{pi} compared to previous findings. This result, which is in agreement with recent experiments, is confirmed both by a physical analysis of the problem and by a perturbative calculation in the weak-coupling limit.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/ebdbe49c1879e5e20ac291459bad277fcbd4d3e6
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In Artificial Intelligence
In Atomic and Molecular Physics, and Optics
Citations in the corpus
- Quantum decoherence (2019, methodology): “Subsequently, a more rigorous derivation of the master equation was given by Hornberger and Sipe [57]; it remedied a flaw in Joos and Zeh’s original derivation that had resulted in decoherence rates that were too large by a factor of 2π (see also Refs.”
- Introduction to decoherence theory (2006, background): “ packet. One way of implementing the missing projection to incoming states would be to use a different convex decomposition of ρ gas, which admits a separation into incoming and outgoing contributions [34]. This way, M in can indeed be calculated properly, albeit in a somewhat lengthy calculation. A ”
- Atom Interferometers (2007, background): “Additional theory work on collisional decoherence with massive particles can be found in (Fiete and Heller, 2003; Hornberger and Sipe, 2003; Hornberger et al., 2004; Kleckner and Ron, 2001; Vacchini, 2004).”