An Experimental Demonstration of the Hypothesis That the Dirac Sea has no Speed Limit

Quantum Holography (imaging) Through Entanglement - Getting an image without sensing the interacting photons.

Fig. 1. Classical and quantum holography. (A) In classical holography, the spatially dependent interference pattern of two coherent beams, the reference beam and the object beam, after interaction with the object, are recorded and used to construct the hologram of the object. (B) In our quantum holography scheme, we make use of two-photon states that can be generated by SPDC in one of two sources. The spatial shape of the object, which is transferred to the spatial shape of the light reflected/transmitted from the object, is contained in the probability amplitudes corresponding to the paired photons being generated in either of two SPDC sources.

This article is about reporting on experimental results that are really mind-blowing. This experiment is reported in “Quantum Holography with undetected light”. in “Science Advances” To quote part of the abstract: “We implement phase-shifting holography with nonclassical states of light, where we exploit quantum interference between two-photon probability amplitudes in a nonlinear interferometer.” What a mouthful! To translate: Nonclassical states of light are entangled photons. So, what this is saying is: We use phase shifting holography to measure the effects of entangled photons that encounter an object, on their entangled counterparts, and measure what the object encountered looked like. As their title says: They are measuring the image of an object without measuring the light that encountered the object. They are measuring the entangled photons instead. The rest of this article is describing how they did the experiment, and is necessarily technical. But, there is another mind blowing conclusion at the end. With this technology, it should be possible to communicate faster than the speed of light. I know that it is presently thought that entangled photons instantly react to the decoherence of their entangled partner, but that no information can be transmitted that way. But, I have never seen it proven that no information can be transmitted. In this experiment, a light channel of entangled photons is set up, and when one entangled photon encounters an object, the partner entangled photon reacts in a way that can be detected by a camera as an image of the encountered object. In the present experiment, the distance between the entangled photons is small (across the optical table), but there is no reason that it cannot be a very long distance, as long as the optical path of the entangled pair is maintained. This experimental result supports the hypothesis in: “The Dirac Sea has no speed limit.”

Phase-shifting holography with a SU(1,1) nonlinear interferometer.

In this part, we give a brief overview of the theoretical framework of phase-shifting holography in the quantum regime…