Weak Value, Quasiprobability and Bohmian Mechanics
arXiv:1602.08872 · doi:10.1007/s10701-016-0054-3
Abstract
We clarify the significance of quasiprobability (QP) in quantum mechanics that is relevant in describing physical quantities associated with a transition process. Our basic quantity is Aharonov's weak value, from which the QP can be defined up to a certain ambiguity parameterized by a complex number. Unlike the conventional probability, the QP allows us to treat two noncommuting observables consistently, and this is utilized to embed the QP in Bohmian mechanics such that its equivalence to quantum mechanics becomes more transparent. We also show that, with the help of the QP, Bohmian mechanics can be recognized as an ontological model with a certain type of contextuality.
References in corpus (5)
- Observation of a quantum Cheshire Cat in a matter wave interferometer experiment
- Grounding Bohmian Mechanics in Weak Values and Bayesianism
- Weak Values are Interference Phenomena
- Reasonable conditions for joint probabilities of non-commuting observables
- How the Weak Variance of Momentum Can Turn Out to be Negative