Abstract
Observing the violation of Bell’s inequality tells us something about all possible future theories: they must all predict nonlocal correlations. Hence Nature is nonlocal. After an elementary introduction to nonlocality and a brief review of some recent experiments, I argue that Nature’s nonlocality together with the existence of free will is incompatible with the many-worlds view of quantum physics.
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- 1.
Note that one can group the λ’s into equivalence classes where two λ’s are said equivalent iff they determine precisely the same probabilities p(a, b ∣ x, y, λ); hence it suffices that one can “count” the equivalence classes.
- 2.
Years ago, I once argued that the many-worlds doesn’t seem compatible with Occam’s razor principle (Gisin and Percival 1993). As answer I got the following: “Occam’s razor should not be applied to the physical world, but be applied to the Schrödinger equation; don’t add any term to this beautiful equation” (Zeh 1993). The linearity of the Schrödinger equation was assumed more real than our physical universe!
- 3.
Some conclude that it must be realism that is faulty. But I don’t see in which sense this could save locality? Moreover, realism is often confused with determinism, an uninteresting terminology issue (see Gisin 2012).
- 4.
Talk delivered at the first John Stewart Bell prize award ceremony (Gisin 2009b).
- 5.
Many physicist hate this conclusion because they fear that it allow faster than light signaling. Hence, let me emphasize that nonlocality does not necessarily imply faster than light signaling. Actually, today’s paradigm for most specialists is nonlocality without signaling.
References
Acin, A., Gisin, N., Masanes, L.I. (2006). From Bell’s theorem to secure quantum key distribution. Physical Review Letters, 97, 12040.
Adler, S. (2007). Collapse models with non-white noises. Journal of Physics A, 40, 755.
Aspect, A., Grangier, P., Roger, G. (1982). Experimental realization of Einstein-Podolsky-Rosen-Bohm Gedankenexperiment: A new violation of Bell’s inequalities. Physical Review Letters, 49, 91–94.
Bancal, J.D., Pironio, S., Acin, A., Liang, Y.C., Scarani, V., Gisin, N. (2012). Quantum Nonlocality Based on Finite-Speed Causal Influences Leads to Superluminal Signaling. Nature Physics, in press 2012, http://arxiv.org/pdf/1110.3795.pdf.
Bell, J.S. (1964). On the Einstein-Podolsky-Rosen paradox. Physics, 1, 195–200; reprinted in: Bell, J.D. (1987). Speakable and unspeakable in quantum mechanics: collected papers on quantum philosophy. Cambridge: Cambridge University Press, revised edition 2004.
Bell, J.S. (1993). Interview. In P.C.W. Davies, & J.R. Brown (Eds.), The ghost in the atom (pp. 45–57). Cambridge: Cambridge University Press.
Cerf, N.J., Gisin, N., Massar, S., Popescu, S. (2005). Simulating maximal quantum entanglement without communication. Physical Review Letters, 94, 220403.
Cocciaro, B., Faetti, S., Fronzoni, L. (2011). A lower bound for the velocity of quantum communications in the preferred frame. Physics Letters A, 375, 379–384.
Franson, J.D. (1985). Bell’s theorem and delayed determinism. Physical Review D, 31, 2529–2532.
Garisto, R. (2002). What is the Speed of Quantum Information? http://arxiv.org/pdf/quant-ph/0212078v1.pdf
Gilder, L. (2008). The age of entanglement. New York: Alfred A. Knopf.
Gisin, N. (2005). Can Relativity be Considered Complete? From Newtonian Nonlocality to Quantum Nonlocality and Beyond. http://arxiv.org/pdf/quant-ph/0512168v1.pdf
Gisin, N. (2009a). Quantum nonlocality: How does nature do it? Science, 326, 1357–1358.
Gisin, N. (2009b). http://www.gapoptique.unige.ch/wiki/news:20090816-0000-pngatfbp
Gisin, N. (2012). Non-realism: Deep thought or a soft option? Foundations of Physics, 42, 80–85.
Gisin, N., & Percival, I.C. (1993). Stochastic wave equations versus parallel world components. Physics Letter A, 175, 144–145.
Gisin, N., Scarani, V., Tittel, W., Zbinden, H. (2000). Optical tests of quantum nonlocality: from EPR-Bell tests towards experiments with moving observers. Annals of Physics, 9, 831–841.
Gisin, N., & Zbinden, H. (1999). Bell inequality and the locality loophole: Active versus passive switches. Physics Letters A, 264, 103–107.
Kent, A. (2009). A proposed test of the local causality of spacetime. In Quantum reality, relativistic causality, and closing the epistemic circle: Essays in honour of Abner Shimony (pp. 369–378). Berlin: Springer.
Kent, A. (2010). One world versus many: the inadequacy of Everettian accounts of evolution, probability, and scientific confirmation. In S. Saunders, J. Barrett, A. Kent, D. Wallace (Eds.), Many worlds? Everett, quantum theory and reality. Oxford: Oxford University Press.
Massanes, L.I., Acin, A., Gisin, N. (2006). General properties of nonsignaling theories. Physical Review A, 73, 012112.
Matsukevich, D.N., et al. (2008). Bell inequality violation with two remote atomic qubits. Physical Review Letters, 100, 150404.
Pitowsky, I. (1982). Resolution of the EPR and Bell paradoxes. Physical Review Letters, 48, 1299–1302.
Popescu, S., & Rohrlich, D. (1994). Nonlocality as an axiom. Foundations of Physics, 24, 379–385.
Rowe, M.A., et al. (2001). Experimental violation of a Bell’s inequality with efficient detection. Nature, 409, 791–794.
Ryff, L.C. (2009). Bell’s Conjecture and Faster-Than-Light Communication. http://arxiv.org/pdf/0903.1076v2.pdf
Salart, D., Baas, A., Branciard, C., Gisin, N., Zbinden, H. (2008a). Testing the speed of ‘spooky action at a distance’. Nature, 454, 861–864.
Salart, D., Baas, A., van Houwelingen, J.A.W., Gisin, N., Zbinden, H. (2008b). Spacelike separation in a bell test assuming gravitationally induced collapses. Physical Review Letters, 100, 220404.
Scarani, S., & Gisin, N. (2005). Superluminal hidden communication as the underlying mechanism for quantum correlations: Constraining models. Brazilian Journal of Physics, 35, 328–332
Short, A.J., Popescu, S., Gisin, N. (2006). Entanglement swapping for generalized nonlocal correlations. Physical Review A, 73, 012101.
Stefanov, A., Zbinden, H., Gisin, N., Suarez, A. (2002). Quantum correlations with spacelike separated beam splitters in motion: Experimental test of multisimultaneity. Physical Review Letters, 88, 120404.
Suarez, A. (2001). Is There a Real Time Ordering Behind the Nonlocal Correlations? http://uk.arxiv.org/pdf/quant-ph/0110124v1
Suarez, A., & Scarani, V. (1997). Does entanglement depend on the timing of the impacts at the beam-splitters? Physics Letters A, 232, 9–14.
Tittel, W., Brendel, J., Zbinden, H., Gisin, N. (1998). Violation of bell inequalities by photons more than 10 km apart. Physical Review Letters, 81, 3563–3566; ibid (1999) Physics Review A, 59, 4150–4163.
Weihs, G., Jennewein, T., Simon, C., Weinfurter, H., Zeilinger, A. (1998). Violation of Bell’s inequality under strict Einstein locality conditions. Physical Review Letters, 81, 5039–5043.
Zbinden, H., Brendel, J., Gisin, N., Tittel, W. (2001). Experimental test of nonlocal quantum correlation in relativistic configurations. Physical Review A, 63, 022111.
Zeh, H.D. (1993). There are no quantum jumps, nor are there particles! Physics Letters A, 172, 189–192.
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Gisin, N. (2013). Are There Quantum Effects Coming from Outside Space–Time? Nonlocality, Free Will and “No Many-Worlds”. In: Suarez, A., Adams, P. (eds) Is Science Compatible with Free Will?. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-5212-6_3
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