Constraints on the noise in dynamical reduction models

Abstract

The dynamics of a quantum system with internal degrees of freedom undergoing spontaneous collapse in the position basis are analysed; e.g., neutral mesons or neutrinos. Surprisingly, the value of the Heaviside function $\theta (x)$ at $x=0$ that can in general be chosen in the interval [0,1] leads to different physical predictions. For the QMUPL (Quantum Mechanics with Universal Position Localization) model only a single value leads to probabilities conserving the particle number. Herewith the physical properties of the noise field can be constrained. This opens a road to study the physical properties of the noise field essential for collapse models.

4 pages

References in corpus (3)

• Collapse models with non-white noises
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• On the uniqueness of the equation for state-vector collapse

Cited by in corpus (8)

• A quantum information theoretic quantity sensitive to the neutrino mass-hierarchy
• No-signaling-in-time as a condition for macrorealism: the case of neutrino oscillations
• Spontaneous collapse: a solution to the measurement problem and a source of the decay in mesonic systems
• Particle mixing and the emergence of classicality: A spontaneous-collapse-model view
• Can a spontaneous collapse in flavour oscillations be tested at KLOE?
• Tests of macrorealism in meson oscillation physics
• Observability of spontaneous collapse in flavor oscillations and its relation to the CP and CPT symmetries
• Comment on "Spontaneous collapse: A solution to the measurement problem and a source of the decay in mesonic systems"