13,070 research outputs found
Measurement and self-adjoint operators
The approximations of classical mechanics resulting from quantum mechanics
are richer than a correspondence of classical dynamical variables with
self-adjoint Hilbert space operators. Assertion that classical dynamic
variables correspond to self-adjoint Hilbert space operators is disputable and
sets unnatural limits on quantum mechanics. Well known examples of classical
dynamical variables not associated with self-adjoint Hilbert space operators
are discussed as a motivation for the realizations of quantum field theory that
lack Hermitian field operators but exhibit interaction.Comment: 17 page
Using IODyne: Illustrations and Examples
"IODyne (pronounced ""iodine"") is an Internet client program that allows one to retrieve information from servers by dynamically combining information objects. Information objects are abstract representations of bibliographic data, typically titles (or title keywords), author names, subject and classification identifiers, and full-text search terms.
IODyne is being developed as part of a library research project, and so the emphasis on bibliographic data. The retrieval paradigm described here can be extended to other kinds of data as well."published or submitted for publicatio
Thinking about Attention in Games: Backward and Forward Induction
Behavioral economics improves economic analysis by using psychological
regularity to suggest limits on rationality and self-interest (e.g. Camerer and
Loewenstein 2003). Expressing these regularities in formal terms permits productive
theorizing, suggests new experiments, can contribute to psychology,
and can be used to shape economic policies which make normal people
better off
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