Paul Isaac Hagouel

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In this paper discrete quantum walks with different coins used for odd and even time steps are studied. These coins are called hybrid. The calculation results are compared with the most frequently used coin, the Hadamard transform. Furthermore, quantum walks on the line which involve two or more quantum walkers with hybrid coins are studied. Quantum walks(More)
Diffraction gratings are used in optical communications devices, spectrographs, optical scanners, monochromators, and in other instances. Diffraction gratings are either transmission or reflection. Reflective gratings are, usually, either ruled or holographic. Blazed gratings (step-echelette or phase gratings) are non-planar gratings. We present the(More)
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