Bohmian Mechanics
نویسندگان
چکیده
Quantum Mechanics and Reality. While quantum mechanics, as presented in physics textbooks, provides us with a formalism, it does not attempt to provide a description of reality. The formalism is a set of rules for computing the probability distribution of the outcome of essentially any experiment (within the realm of quantum mechanics). A description of reality, in contrast, would tell us what processes take place on the microscopic level that lead to the random outcomes that we observe, and would thus explain the formalism. While the correctness of the formalism is almost universally agreed upon, the description of the reality behind the formalism is controversial. It has also been doubted whether a description of reality needs to conform with ordinary standards of logical consistency, and whether to have such a description is desirable at all. Indeed, it has often been claimed that quantum theory forces us to reject the reality of an external world that exists objectively, independently of the human mind.
منابع مشابه
Parsimony and Quantum Mechanics: An Analysis of the Copenhagen and Bohmian Interpretations
Parsimony, sometime referred to as simplicity, is an effective criterion of theory choice in the case of Quantum Mechanics. The Copenhagen and Bohmian interpretations are rival theories, with the Bohmian interpretation being more parsimonious. More parsimonious theories have a higher probability of being true than less parsimonious rivals. The Bohmian interpretation should thus be preferred on ...
متن کاملIntroductory lecture on Bohmian mechanics
Bohmian mechanics is a theory of quantum phenomena based on a particle picture. On a fundamental level, it explains the world around us in terms of point particles that move on deterministic paths. When used to describe experimental situations, Bohmian mechanics yields the textbook formalism of quantum mechanics, and can therefore be considered as an explanation of the axioms of standard quantu...
متن کاملBohmian mechanics contradicts quantum mechanics Arnold
It is shown that, for a harmonic oscillator in the ground state, Bohmian mechanics and quantum mechanics predict values of opposite sign for certain time correlations. The discrepancy can be explained by the fact that Bohmian mechanics has no natural way to accomodate the Heisenberg picture, since the local expectation values that define the beables of the theory depend on the Heisenberg time b...
متن کاملWhy Bohmian Mechanics? One- and Two-Time Position Measurements, Bell Inequalities, Philosophy, and Physics
In Bohmian mechanics, particles follow continuous trajectories, so two-time position correlations have been well defined. However, Bohmian mechanics predicts the violation of Bell inequalities. Motivated by this fact, we investigate position measurements in Bohmian mechanics by coupling the particles to macroscopic pointers. This explains the violation of Bell inequalities despite two-time posi...
متن کاملA Survey of Bohmian Mechanics
Bohmian mechanics is the most naively obvious embedding imaginable of Schrr odinger's equation into a completely coherent physical theory. It describes a world in which particles move in a highly non-Newtonian sort of way, one which may at rst appear to have little to do with the spectrum of predictions of quantum mechanics. It turns out, however, that as a consequence of the deening dynamical ...
متن کاملThe Emergence and Interpretation of Probability in Bohmian Mechanics
The Bohm interpretation of quantum mechanics is capable of illustrating, by itself, virtually every philosophical and foundational conundrum associated with physical probability. One reason this is true is that the Bohm interpretation comes in many forms, both stochastic and deterministic. The other reason is that quantum mechanics is to Bohmian mechanics roughly as statistical mechanics is to ...
متن کامل