Comment on "Berry phase correction to electron density of states in solids".

نویسندگان

  • C Duval
  • Z Horváth
  • P A Horváthy
  • L Martina
  • P C Stichel
چکیده

Recent results of Xiao, Shi and Niu [cond-mat/0502340] on the semiclassical dynamics of an electron in a solid are related to “exotic” Galilean dynamics. The dynamics is Hamiltonian in a generalized sense and the validity of Liouville’s theorem is restored if the symplectic volume form is used.

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Comment on “ Berry phase correction to electron density in solids ”

Comment on " Berry phase correction to electron density in solids " by Xiao et al. Abstract The main result of Xiao et al. In a recent paper on the semiclassical dynamics of a Bloch electron, Xiao, Shi and Niu [1] claim that, due to a Berry curvature term, Liouville's theorem on the conservation of the phase-space volume element would be violated, a fact which would have been overlooked so far....

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Berry phase correction to electron density of states in solids.

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The main result of Xiao et al. [ Phys. Rev. Lett. 95, 137204 (2005)] is shown to follow from Hamiltonian mechanics. In a recent paper on the semiclassical dynamics of a Bloch electron, Xiao, Shi and Niu [1] claim that, due to a Berry curvature term, Liouville’s theorem on the conservation of the phasespace volume element would be violated, a fact which would have been overlooked so far. Their m...

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عنوان ژورنال:
  • Physical review letters

دوره 96 9  شماره 

صفحات  -

تاریخ انتشار 2006