Comment on ``Exact bosonization for an interacting Fermi gas in arbitrary dimensions''

Details Comment on ``Exact bosonization for an interacting Fermi gas in arbitrary dimensions'' Comment on ``Exact bosonization for an interacting Fermi gas in arbitrary dimensions''

2009-11-26

arxiv.org/abs/0911.5155v1

Physics

Condensed Matter

Strongly Correlated Electrons

1 page

Scientific paper

This a comment on arXiv:0907.3243v2. We demonstrate that the method proposed
by Efetov {\it et. al.} is just a reformulation of the Blankenbeckler,
Scalapino, and Sugar approach and thus it contains exactly the same sign
problem, including the dependence of the sign on the smoothness of the paths.

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