Astrophysical and Cosmological Tests of Quantum Theory

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Abstract

We discuss several proposals for astrophysical and cosmological tests of quantum theory. The tests are motivated by deterministic hidden-variables theories, and in particular by the view that quantum physics is merely an effective theory of an equilibrium state. The proposed tests involve searching for nonequilibrium violations of quantum theory in: primordial inflaton fluctuations imprinted on the cosmic microwave background, relic cosmological particles, Hawking radiation, photons with entangled partners inside black holes, neutrino oscillations, and particles from very distant sources.

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A Suggested Interpretation of the Quantum Theory in Terms of "Hidden" Variables. II

David Bohm (1952)

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Reduction of the state vector by a nonlinear Schrödinger equation

Philip Pearle (1976)

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Nanosecond radio bursts from strong plasma turbulence in the Crab pulsar.

T. Hankins, J Kern, J C Weatherall … (2003)

The Crab pulsar was discovered by the occasional exceptionally bright radio pulses it emits, subsequently dubbed 'giant' pulses. Only two other pulsars are known to emit giant pulses. There is no satisfactory explanation for the occurrence of giant pulses, nor is there a complete theory of the pulsar emission mechanism in general. Competing models for the radio emission mechanism can be distinguished by the temporal structure of their coherent emission. Here we report the discovery of isolated, highly polarized, two-nanosecond subpulses within the giant radio pulses from the Crab pulsar. The plasma structures responsible for these emissions must be smaller than one metre in size, making them by far the smallest objects ever detected and resolved outside the Solar System, and the brightest transient radio sources in the sky. Only one of the current models--the collapse of plasma-turbulent wave packets in the pulsar magnetosphere--can account for the nanopulses we observe.

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Publication date Created: 02 October 2006

Publication date Updated: 2007-04-11

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DOI: 10.1088/1751-8113/40/12/S24

ArXiV ID: hep-th/0610032

SO-VID: 2038b169-364a-461d-977b-14ecea138b8b

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Journal reference J. Phys. A: Math. Theor. 40 (2007) 3285--3303

Comments 25 pages. Amendment to section 7. Contribution to: "The Quantum Universe", special issue of Journal of Physics A, dedicated to Prof. G.-C. Ghirardi on the occasion of his seventieth birthday

Categories hep-th astro-ph quant-ph

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Astrophysical and Cosmological Tests of Quantum Theory

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Numerical Algebra, Matrix Theory, Differential-Algebraic Equations, and Control Theory

Most cited references 11

A Suggested Interpretation of the Quantum Theory in Terms of "Hidden" Variables. II

Reduction of the state vector by a nonlinear Schrödinger equation

Nanosecond radio bursts from strong plasma turbulence in the Crab pulsar.

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