1. Path-phase duality with intraparticle translational-internal entanglement.
- Author
-
Kolářr, Michal, Opatrný, Tomáš, Bar-Gill, Nir, Erez, Noam, and Kurizki, Gershon
- Subjects
PHASE shift (Nuclear physics) ,PARTICLES (Nuclear physics) ,INTERFEROMETRY ,INTERFEROMETERS ,SCATTERING (Physics) ,PHYSICS - 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) intraparticle states. This correlation causes the path distinguishability to be interferometric phase-dependent in contrast to the standard case, where distinguishability depends on some external parameters (not interferometric phase). 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 cases when distinguishability is uncoupled to interferometric phase. [ABSTRACT FROM AUTHOR]
- Published
- 2007
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