Spontaneous collapse: A solution to the measurement problem and a source of the decay in mesonic systems

Autor(en)

Kyrylo Simonov, Beatrix C. Hiesmayr

Abstrakt

Dynamical reduction models propose a solution to the measurement problem in quantum mechanics: the collapse of the wave function becomes a physical process. We compute the predictions to decaying and flavor-oscillating neutral mesons for the two most promising collapse models, the QMUPL (quantum mechanics with universal position localization) model and the mass-proportional CSL (continuous spontaneous localization) model. Our results are showing (i) a strong sensitivity to the very assumptions of the noise field underlying those two collapse models and (ii) under particular assumptions the CSL case allows one even to recover the decay dynamics. This in turn allows one to predict the effective collapse rates solely based on the measured values for the oscillation (mass differences) and the measured values of the decay constants. The four types of neutral mesons (K meson, D meson, B-d meson, and B-s meson) lead surprisingly to ranges comparable to those put forward by Adler [J. Phys. A: Math. Theor. 40, 2935 (2007)] and Ghirardi, Rimini, and Weber [Phys. Rev. D 34, 470 (1986)]. Our results show that these systems at high energies are very sensitive to possible modifications of the standard quantum theory, making them a very powerful laboratory to rule out certain collapse scenarios and study the detailed physical processes solving the measurement problem.

Organisation(en)

Teilchenphysik, Quantenoptik, Quantennanophysik und Quanteninformation

Journal

Physical Review A

Band

94

Anzahl der Seiten

20

ISSN

1050-2947

DOI

https://doi.org/10.1103/PhysRevA.94.052128

Publikationsdatum

11-2016

Peer-reviewed

Ja

ÖFOS 2012

103025 Quantenmechanik, 103034 Teilchenphysik

Schlagwörter

ASJC Scopus Sachgebiete

Atomic and Molecular Physics, and Optics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/f23f6b37-6664-41f7-83fc-126f3332b932