We present a method for graphically visualizing any two-qubit quantum state. This tool, based on the Poincaré sphere, provides an unambiguous, intuitive, and useful compliment to photonic state tomography.

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Altepeter et al. (Thu,) studied this question.

synapsesocial.com/papers/69d253d170c3ad75e64896e5 https://doi.org/https://doi.org/10.1364/iqec.2009.iwc1

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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

1<i>Quantum Computation and Quantum Information</i>2002 · 22,734 citations
2Photonic State Tomography2005 · 359 citations
3Quantum states with Einstein-Podolsky-Rosen correlations admitting a hidden-variable model1989 · 4,096 citations
4Maximizing the entanglement of two mixed qubits2001 · 326 citations
5Entanglement of Formation of an Arbitrary State of Two Qubits1998 · 8,322 citations