Physics – Quantum Physics
Scientific paper
2006-11-22
G. Adenier, C. A. Fuchs and A. Yu. Khrennikov (eds.), Foundations of Probability and Physics - 4, AIP Conference Proceedings v
Physics
Quantum Physics
10 Pages, Work presented at "Foundations of Probability and Physics-4", Vaxjo University, June 4-9 2006
Scientific paper
Assuming that quantum states, including pure states, represent subjective degrees of belief rather than objective properties of systems, the question of what other elements of the quantum formalism must also be taken as subjective is addressed. In particular, we ask this of the dynamical aspects of the formalism, such as Hamiltonians and unitary operators. Whilst some operations, such as the update maps corresponding to a complete projective measurement, must be subjective, the situation is not so clear in other cases. Here, it is argued that all trace preserving completely positive maps, including unitary operators, should be regarded as subjective, in the same sense as a classical conditional probability distribution. The argument is based on a reworking of the Choi-Jamiolkowski isomorphism in terms of "conditional" density operators and trace preserving completely positive maps, which mimics the relationship between conditional probabilities and stochastic maps in classical probability.
No associations
LandOfFree
Conditional Density Operators and the Subjectivity of Quantum Operations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Conditional Density Operators and the Subjectivity of Quantum Operations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conditional Density Operators and the Subjectivity of Quantum Operations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-369355