Professor B. Roy Frieden, who founded the group, said the goal of the meeting was to promote research on the connection between Fisher information and basic physics. Roy Hughes of DoD, Australia. Many members of the group believe that all of thermodynamics can be derived from the standpoint of minimum Fisher information. Roy and his colleagues will be seriously attacking this problem in the fall when another group member, Professor Angelo Plastino of the Department of Physics of the University of La Plata in Argentina, visits the Center. He will also work with Roy on Fisher temperature-and time concepts.
Fisher information is an old concept.
It has been used since about 1922 to judge the quality of statistical estimates. Now it is the central concept in a new theory of measurement. This predicts that each physical phenomenon arises in response to a request for data about it. This perturbs the particle s Fisher information level, and initiates a variational principle whose solution and output is the probability law that produces the requested measurement. For example, the Schroedinger wave equation arises out of a request for the position of a particle.