Our paper Discrete, tunable color entanglement has been published in Physical Review Letters. Two photons can be entangled in many different degrees of freedom, such as their polarization (the all-time favorite in the community). Photon pairs created in spontaneous parametric downconversion are intrinsically entangled in energy (and thus in frequency) and momentum. The frequency entanglement […]
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- December 17, 2009
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