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Quantum polarization properties of two-mode energy eigenstates

Anita Sehat·Jonas Söderholm·Gunnar Björk·Pedro Espinoza·Andrei B. Klimov·Luis L. Sánchez-Soto
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Abstract

We show that any pure, two-mode, $N$-photon state with $N$ odd or equal to two can be transformed into an orthogonal state using only linear optics. According to a recently suggested definition of polarization degree, this implies that all such states are fully polarized. This is also found to be true for any pure, two-mode, energy eigenstate belonging to a two-dimensional SU(2) orbit. Complete two- and three-photon bases whose basis states are related by only phase shifts or geometrical rotations are also derived.

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Anita Sehat, Jonas Söderholm, Gunnar Björk, Pedro Espinoza, Andrei B. Klimov, Luis L. Sánchez-Soto. 2004-07-23. Quantum polarization properties of two-mode energy eigenstates. https://doi.org/10.1103/physreva.71.033818

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