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Article overview
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Path-phase duality of an interfering particle with
translational-internal entanglement | | M. Kolar
; T. Opatrny
; N. Bar-Gill
; N. Erez
; G. Kurizki
; | | Date: |
29 May 2007 | | Journal: | New J. Phys. 9 (2007) 129 | | Subject: | Quantum Physics (quant-ph) | | Abstract: | The aim of this paper is to revisit the implications of complementarity when
we inject into a Mach Zehnder interferometer particles with internal structure,
prepared in special translational-internal entangled (TIE) states. This
correlation causes the path distinguishability to be phase dependent in
contrast to the standard case. We show that such a TIE state permits us to
detect small phase shifts along with almost perfect path distinguishability,
beyond the constraints imposed by complementarity on simultaneous which-way and
which-phase measurements for standard cases (when distinguishability is
independent of interferometric phase). | | Source: | arXiv, arxiv.0705.4177 | | Services: | Forum | Review | PDF | Favorites | |
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