Retrocausal model of reality for quantum fields
ORAL
Abstract
We show that one may interpret physical reality as random fields in space-time. These have a probability given by the expectation of a coherent state projection operator, called the Q-function. The resulting dynamical evolution includes retrocausal effects. This suggests that a physical universe exists without requiring observers, but with a well-defined probability for its field configuration. By including the meter dynamics, we show that field trajectories have quantum measurement properties without wave-function collapse, including sharp measured
eigenvalues. We treat continuous and discrete measurements, and show that this model predicts Bell inequality violations for measurements on correlated spins. A discussion is give of a number of well-known quantum paradoxes, showing how these can be treated in a realistic model of measurement. Our theory resolves a number of practical and philosophical issues in quantum measurement, and we compare it with earlier theories.
eigenvalues. We treat continuous and discrete measurements, and show that this model predicts Bell inequality violations for measurements on correlated spins. A discussion is give of a number of well-known quantum paradoxes, showing how these can be treated in a realistic model of measurement. Our theory resolves a number of practical and philosophical issues in quantum measurement, and we compare it with earlier theories.
*This work was funded by Australian Research Council Grants DP180102470 and DP190101480, and by ITAMP of Harvard University, the Weizmann Institute of Science, the Joint Institute of Laboratory Astrophysics of The University of Colorado, and the Aspen Center for Physics, which is supported by NSF grant PHY-1607611.
–
Presenters
-
Margaret Reid
- Swinburne Univ of Tech