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Foundations of Physics

, Volume 42, Issue 4, pp 555–581 | Cite as

Changes of Separation Status During Registration and Scattering

  • P. HájíčekEmail author
Article

Abstract

In our previous work, a new approach to the notorious problem of quantum measurement was proposed. Existing treatments of the problem were incorrect because they ignored the disturbance of measurement by identical particles and standard quantum mechanics had to be modified to obey the cluster separability principle. The key tool was the notion of separation status. Changes of separation status occur during preparations, registrations and scattering on macroscopic targets. Standard quantum mechanics does not provide any correct rules that would govern these changes. This gives us the possibility to add new rules to quantum mechanics that would satisfy the objectification requirement. The method of the present paper is to start from the standard unitary evolution and then introduce minimal corrections. Several representative examples of registration and particle scattering on macroscopic targets are analysed case by case in order to see their common features. The resulting general Rule of Separation Status Changes is stated in the Conclusion.

Keywords

Problem of quantum measurement Cluster separability Reformed quantum mechanics Detectors Probability reproducibility Objectification requirement 

Notes

Acknowledgements

The author is indebted to Uwe-Jens Wiese for drawing his attention to the Hanbury Brown and Twiss effect, to an anonymous referee for mentioning the work by K.K. Wan and Jiří Tolar for useful discussions.

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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Institute for Theoretical PhysicsUniversity of BernBernSwitzerland

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