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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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Geometric interpretation of the Pancharatnam connection and non-cyclic polarization changes

Thomas van Dijk1, Hugo F Schouten, Taco D Visser

  • 1Department of Physics and Astronomy, and Laser Centre, VU University, De Boelelaan 1081,1081 HV Amsterdam, The Netherlands.

Journal of the Optical Society of America. A, Optics, Image Science, and Vision
|September 3, 2010
PubMed

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The spirograph is a versatile tool for visualizing the relationship between geometry and mathematical representation. In particular, it demonstrates how polar coordinates offer an alternative framework for describing curves in comparison to Cartesian coordinates. Instead of specifying a point by its horizontal and vertical displacements (x, y), polar coordinates use a radius r, the distance from the origin, and an angle θ, measured counterclockwise from the polar axis. This system is...
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