Comment on "Fermionic entanglement ambiguity in noninertial frames"

Abstract

In this comment we show that the ambiguity of entropic quantities calculated in Physical Review A 83, 062323 (2011) for fermionic fields in the context of Unruh effect is not related to the properties of anticommuting fields, as claimed in Physical Review A 83, 062323 (2011), but rather to wrong mathematical manipulations with them and not taking into account a fundamental superselection rule of quantum field theory.

To appear in Physical Review A. Some of the problems discussed in this comment can also be found in other previously published papers studying the Unruh effect for fermions (in the context of quantum information theory). An extended version of the comment can be found here http://arxiv.org/abs/1108.5553

References in corpus (3)

• Non-Abelian Anyons and Topological Quantum Computation
• Entanglement in fermionic systems
• Fermionic entanglement ambiguity in non-inertial frames

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