Can apparent superluminal neutrino speeds be explained as a quantum weak measurement?

@article{Berry2011CanAS,
  title={Can apparent superluminal neutrino speeds be explained as a quantum weak measurement?},
  author={Michael V. Berry and Nicolas Brunner and Sandu Popescu and Pragya Shukla},
  journal={Journal of Physics A: Mathematical and Theoretical},
  year={2011},
  volume={44}
}
Probably not. 

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References

SHOWING 1-10 OF 15 REFERENCES

Superluminal group velocity of neutrinos

We suggest a possible interpretation of the recent observation by the OPERA collaboration of superluminal propagation of neutrinos. We show that it is in principle possible that the group velocity of

Superluminal group velocity through near-maximal neutrino oscillations

Recently it was suggested that the observation of superluminal neutrinos by the OPERA collaboration may be due to group velocity effects resulting from close-to-maximal oscillation between neutrino

Apparent Superluminal Muon-neutrino Velocity as a Manifestation of Weak Value

The result of the OPERA experiment revealed that the velocity of muon-neutrinos was larger than the speed of light. We argue that this apparent superluminal velocity can be interpreted as a weak

Some light on "Measurement of the neutrino velocity with the OPERA detector in the CNGS beam"

The recent publication in ArXiv of "Measurement of the neutrino velocity with the OPERA detector in the CNGS beam" has attracted many interest due to the possible theoretical or phenomenological

Measurement of neutrino oscillations with the MINOS detectors in the NuMI beam.

TLDR
The data disfavor two alternative explanations for the disappearance of neutrinos in flight: namely, neutrino decays into lighter particles and quantum decoherence of neutRinos, at the 3.7 and 5.7 standard-deviation levels, respectively.

Complex weak values in quantum measurement

In the weak value formalism of Aharonov et al., the weak value A{sub w} of any observable A is generally a complex number. We derive a physical interpretation of its value in terms of the shift in

Pointer supershifts and superoscillations in weak measurements

The association between large shifts of a pointer in a weak measurement and fast oscillations in an associated function involving the pre- and post-selected states has been clarified in a recent

Measurement of the neutrino velocity with the OPERA detector in the CNGS beam

A bstractThe OPERA neutrino experiment at the underground Gran Sasso Laboratory has measured the velocity of neutrinos from the CERN CNGS beam over a baseline of about 730 km. The measurement is

Properties of a quantum system during the time interval between two measurements.

  • AharonovVaidman
  • Physics
    Physical review. A, Atomic, molecular, and optical physics
  • 1990
TLDR
A description of quantum systems at the time interval between two successive measurements is presented, and how this approach leads to a new concept: a weak value of an observable.

Time-symmetric formulation of quantum mechanics.

  • ReznikAharonov
  • Physics
    Physical review. A, Atomic, molecular, and optical physics
  • 1995
TLDR
A consequence of the suggested formalism and measurement theory is that the problems of nonlocality and Lorentz noncovariance, of the usual prescription with a "reduction," may be eliminated.