Density matrices of three polarization qubit states of telecommunication wavelength photons after storage in an atomic quantum memory. Selected for an Editor’s Suggestion.

From the article:

Telecom-Wavelength Atomic Quantum Memory in Optical Fiber for Heralded Polarization Qubits
Jeongwan Jin, Erhan Saglamyurek, Marcel. lí Grimau Puigibert, Varun Verma, Francesco Marsili, Sae Woo Nam, Daniel Oblak, and Wolfgang Tittel
Phys. Rev. Lett. 115, 140501 (2015)

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