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quant-ph2018★ 27 cited
Detecting coherence via spectrum estimation
Xiao-Dong Yu, Otfried Gühne
Coherence is a basic phenomenon in quantum mechanics and considered to be an essential resource in quantum information processing. Although the quantification of coherence has attr…
quant-ph2016★ 1 cited
Propagation of Gaussian beams in the presence of gain and loss
Eva-Maria Graefe, Alexander Rush, Roman Schubert
We consider the propagation of Gaussian beams in a waveguide with gain and loss in the paraxial approximation governed by the Schrödinger equation. We derive equations of motion fo…