Measuring arbitrary-order coherences: Tomography of single-mode multiphoton polarization-entangled states

Schilling U, von Zanthier J, Agarwal GS (2010)


Publication Status: Published

Publication Type: Journal article

Publication year: 2010

Journal

Publisher: American Physical Society

Book Volume: 81

Article Number: 013826

Journal Issue: 1

DOI: 10.1103/PhysRevA.81.013826

Abstract

A scheme is discussed for measuring Nth-order coherences of two orthogonally polarized light fields in a single spatial mode at very limited experimental cost. To implement the scheme, the only measurements needed are the Nth-order intensity moments after the light beam has passed through two quarter-wave plates, one half-wave plate, and a polarizing beam splitter for specific settings of the wave plates. It is shown that this method can be applied for arbitrarily large N. A set of explicit values is given for the settings of the wave plates, constituting an optimal measurement of the Nth-order coherences for any N. For Fock states the method introduced here corresponds to a full state tomography. Applications of the scheme to systems other than polarization optics are discussed.

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APA:

Schilling, U., von Zanthier, J., & Agarwal, G.S. (2010). Measuring arbitrary-order coherences: Tomography of single-mode multiphoton polarization-entangled states. Physical Review A, 81(1). https://dx.doi.org/10.1103/PhysRevA.81.013826

MLA:

Schilling, Uwe, Joachim von Zanthier, and G. S. Agarwal. "Measuring arbitrary-order coherences: Tomography of single-mode multiphoton polarization-entangled states." Physical Review A 81.1 (2010).

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