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Quantum Radar by Marco Lanzagorta

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CHAPTER 3

Photon Scattering

As we discussed in the previous chapter, in the large photon number limit, Quantum Electrodynamics (QED) leads to Classical Electrodynamics (CED). Indeed, the electromagnetic quantum fields Ê and Images satisfy the same Maxwell equations as the classical fields E and B [90, 106]. As a consequence, those physical phenomena that are described by CED can also be described with QED.

Such is the case of specular reflections, that is, the reflection of light by a mirror. By imposing the right boundary conditions on the classical electromagnetic fields one can use Maxwell equations to derive the well known “Law of Reflections” (the ...

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