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F. J. Duarte Quotes
born 1954 United States
Francisco Javier "Frank" Duarte (born 1 September 1954) is a Chilean-American laser physicist and author who has contributed widely to dye lasers, tunable lasers, multiple-prism optics, and quantum interferometry.
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11 quotes
The intimate relation between interference and diffraction has its origin in the interference equation itself.
Personally, I find the concept of a "final theory," or a "theory of everything," rather limiting. The fun of discovery will most likely last as long as the human race continues.
All the indistinguishable photons illuminate the array of N slits, or grating, simultaneously. If only one photon propagates, at any given time, then that individual photon illuminates the whole array of N slits simultaneously.
As noted previously Bell's theorem is completely disconnected from the physics leading to |\psi\rangle_+, |\psi\rangle_-, |\psi\rangle^+, and |\psi\rangle^- .
Regardless of the prophetic value of Dirac’s description [on interference] his was probably the first discussion... including a coherent beam of light. In other words, Dirac wrote the first chapter in laser optics.
The Dirac notation, though originally applied to the propagation of single particles, also applies to describing the propagation of ensembles of coherent, or indistinguishable, photons.
From an interferometric perspective, there are no mysteries... and no paradoxes... in the physics of quantum entanglement.
The most efficient and practical interpretation of quantum mechanics is... no interpretation at all.
Feynman uses Dirac's notation to describe the quantum mechanics of stimulated emission... he applies that physics to... dye molecules... In this regard, Feynman could have predicted the existence of the tunable laser.
The two photons are entangled and according to local realism, their polarization planes should become independent... a typical EPR situation. Already in 1948, observations... agreed with quantum mechanics, not with local realism.
The EPR claim of an "all values" spread in the coordinate depends on an idealized absolute and exact measurement of p with \Delta p\ = 0. Since this is physically impossible, the claim of "no physical reality" can be negated.
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