Abstract
According to quantum physics, the explanation for the possibility of winning Bell’s game, in the sense of obtaining a score greater than 3, is entanglement. Erwin Schrödinger, one of the fathers of quantum physics, was the first to note that entanglement is not just one feature of quantum physics among others, but its main characteristic:
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Notes
- 1.
Schrödinger, E.: Discussion of probability relations between separated systems, Proceedings of the Cambridge Philosophical Society 31, 55 (1935).
- 2.
For a more detailed discussion, see Scarani, V.: „Quantum Physics, A First Encounter“, Oxford Univ. Press 2006.
- 3.
Rae, A.: Quantum Physics. Illusion or Reality?, Cambridge University Press (1986); Ortoli, S., Pharabod, J.P.: Le cantique des quantiques, La Découverte (1985); Gilder, L.: The Age of Entanglement, Alfred A. Knopf (2008).
- 4.
As measured on the bathroom scales. But our mass would not be affected, only the attractive force that the Earth and Moon exert on us. Note that the stone should be displaced using a rocket, so as to displace - slightly - the moon’s center of mass.
- 5.
The polarisation is determined by the direction of the electric field associated with any photon. If the photon is definitely polarised, this vibration will be confined to some precise orientation in space, and this orientation determines the polarisation state of the photon. It is related to possible measurement directions with a factor of 2Â in the angles, a factor whose story also deserves to be told.
- 6.
There are infinitely many possible entangled states. Here I consider the state known to physicists as Φ + and measurements in the xz plane.
- 7.
Some prefer to speak of local hidden variables, but whether or not they are hidden changes nothing here.
- 8.
Shimony, A.: In Foundations of Quantum Mechanics in the Light of New Technology, ed. by S. Kamefuchi et al., Physical Society of Japan, Tokyo (1983).
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Gisin, N. (2014). Quantum Entanglement. In: Quantum Chance. Copernicus, Cham. https://doi.org/10.1007/978-3-319-05473-5_5
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DOI: https://doi.org/10.1007/978-3-319-05473-5_5
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