Alternative deterministic interpretation of quantum mechanics generally predicts the same results as standard theories – but a new experiment challenges that view, as Tim Wogan reports.
This thesis examines the contradiction between the deterministic dynamics of Bohmian mechanics and the probabilistic outcomes of the Born rule due to a new challenge raised by Klaas Landsman: that sequences of measurement results that are typical relative to the Born product measure are Martin-Löf random and cannot be generated by any computable deterministic process from compressible initial data. Regarding this new challenge, I assess two contemporary accounts of the Born rule: the typicality program and the Best System Account (BSA). In this thesis, I show that both these approaches fail to resolve Landsman's challenge. As an alternative, I propose a propensity interpretation: the Born rule expresses objective propensities grounded in Bohmian ontology, together with supplementary lawlike structure beyond standard BM. I argue that this alternative view reconciles deterministic laws with a dynamically grounded yet irreducible Born rule and addresses Landsman's critique
The de Broglie–Bohm interpretation (Bohmian mechanics, hidden-variables theory, causal interpretation
or pilot-wave theory) is one of the interpretations of quantum mechanics which opposes
to the claim of standard interpretation on the completeness of description of the state of quantummechanical
system, that description in Bohmian mechanics is completed by defining positions of
the particles of the system i.e. hidden variables and their dynamics. These facts are the basis of motivation
for the introduction of a new theory that can describe dubious axiomatic requirements of
standard interpretation. The presented theory is deterministic and explicitly nonlocal. Originators
of Bohmian mechanics were L. de Broglie (1927.) and D. Bohm (1952.) who presented mathematically
more general and conceptual elaborate formulation. Along with the historical overview,
a note is given about the main properties of the theory, such as the issue of nonlocality and hidden
variables. The aim of this paper is to present and explain the main ideas and properties of the
theory as well as to give a systematic overview of present and historical mathematical construction
of the theory and most of all to discuss implications of de Broglie–Bohm theory on the ontology of
quantum-mechanical picture, showcasing examples of the equivalency of the description of a free
particle as a propagation of the plane wave in space or as the ensemble of the trajectories and of
the spreading of the Gaussian wave packet. The main example of the obvious conceptual clashing
of the interpretations is presented: the double-slit experiment, with a detailed examination of the
Bohmian mechanics’ predictions using presented formalism on the two double-slit experiment.
The graphs of trajectories for given examples are obtained.
Acknowledgments..................................................................................................388 Bibliography ..........................................................................................................389 The predictive power of quantum mechanics (QM) plays a role of paramount importance in the understanding of matter and its fundamental laws [8]. Despite this great success, the standard formulation of QM, usually known as the Copenhagen interpretation [10], has always suffered from interpretational difficulties [7]. For this reason, David Bohm introduced in the 1950s an alternative version [3], which has experienced a revitalization in the past few years, supported by a new computationally oriented point of view. The so-called Bohmian mechanics (BM) constitutes a true theory of quantum dynamics [6,18], and many interesting practical applications, including the analysis of the tunneling mechanism [9], scattering processes [12,14], or the classicalquantum correspondence [13], just to name a few, have been revisited using this novel point of view.