Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.85.052115
Title: Experimental proposal for symmetric minimal two-qubit state tomography
Authors: Kalev, A. 
Shang, J.
Englert, B.-G. 
Issue Date: 17-May-2012
Citation: Kalev, A., Shang, J., Englert, B.-G. (2012-05-17). Experimental proposal for symmetric minimal two-qubit state tomography. Physical Review A - Atomic, Molecular, and Optical Physics 85 (5) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.85.052115
Abstract: We propose an experiment that realizes a symmetric informationally complete (SIC) probability-operator measurement (POM) in the four-dimensional Hilbert space of a qubit pair. The qubit pair is carried by a single photon as a polarization qubit and a path qubit. The implementation of the SIC POM is accomplished with the means of linear optics. The experimental scheme exploits an approach to SIC POMs that uses a two-step process: a measurement with full-rank outcomes, followed by a projective measurement on a basis that is chosen in accordance with the result of the first measurement. The basis of the first measurement and the four bases of the second measurements are pairwise unbiased-a hint at a possibly profound link between SIC POMs and mutually unbiased bases. © 2012 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/112436
ISSN: 10502947
DOI: 10.1103/PhysRevA.85.052115
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