Physics – Quantum Physics
Scientific paper
2011-01-30
J.Phys.Conf.Ser.306:012047,2011
Physics
Quantum Physics
12 pages, 5 figures, LaTex; prepared for DICE2010 conference proceedings
Scientific paper
10.1088/1742-6596/306/1/012047
The purpose of this paper is to present an overview of recent work on pilot-wave approaches to quantum field theory. In such approaches, systems are not only described by their wave function, as in standard quantum theory, but also by some additional variables. In the non-relativistic pilot-wave theory of de Broglie and Bohm those variables are particle positions. In the context of quantum field theory, there are two natural choices, namely particle positions and fields. The incorporation of those variables makes it possible to provide an objective description of nature in which rather ambiguous notions such as `measurement' and `observer' play no fundamental role. As such, the theory is free of the conceptual difficulties, such as the measurement problem, that plague standard quantum theory.
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