Groups, information theory, and Einstein's likelihood principle

We propose a unifying picture where the notion of generalized entropy is related to information theory by means of a group-theoretical approach. The group structure comes from the requirement that an entropy be well defined with respect to the composition of independent systems, in the context of a recently proposed generalization of the Shannon-Khinchin axioms. We associate to each member of a large class of entropies a generalized information measure, satisfying the additivity property on a set of independent systems as a consequence of the underlying group law. At the same time, we also show that Einstein's likelihood function naturally emerges as a byproduct of our informational interpretation of (generally nonadditive) entropies. These results confirm the adequacy of composable entropies both in physical and social science contexts.

Nonequilibrium spin glass dynamics with Janus

The out of equilibrium evolution for an Edwards‐Anderson spin glass is followed for a tenth of a second, a long enough time to let us make safe predictions about the behaviour at experimental scales. This work has been made possible by Janus, an FPGA based special purpose computer. We have thoroughly studied the spin glass correlation functions and the growth of the coherence length for L = 80 lattices in 3D. Our main conclusion is that these spin glasses follow noncoarsening dynamics, at least up to the experimentally relevant time scales.

Nonequilibrium spin-glass dynamics from picoseconds to a tenth of a second

We study numerically the nonequilibrium dynamics of the Ising spin glass, for a time spanning 11 orders of magnitude, thus approaching the experimentally relevant scale (i.e., seconds). We introduce novel analysis techniques to compute the coherence length in a model-independent way. We present strong evidence for a replicon correlator and for overlap equivalence. The emerging picture is compatible with noncoarsening behavior.

A check-list and index of microfilm M-75, Dr. Alfred Einstein's mss. at Smith College, Mass. /

Cover title: Einstein (Alfred) mss. at Smith College : a checklist & index.

Ionization nonequilibrium in expanding flows,

"This report is based on research sponsored by the Rome Air Development Center of the Air Research and Development Command under Contract AF 30(602)-2267."

Nonequilibrium expansions of air with coupled chemical reactions

Caption title.

The effect of species diffusion and heat conduction on nonequilibrium flows behind strong shocks. Contract no. NASr-119.

Mode of access: Internet.

Entropy changes in nonequilibrium flows,

Mode of access: Internet.

Ionization nonequilibrium effects on the magnetogasdynamic interaction in the stagnation region of an axisymmetric blunt body.

"ASD-TDR-62-1078. Contract no. AF33(616)-8055."

Weak, nonequilibrium, diffusive waves in a dissociated gas,

"This report is based on research sponsored by the U. S. Navy through the Office of Naval Research, Contract Nonr-2653(00) [Task NR 061-106]"

Aerothermodynamic consequences of nozzle nonequilibrium

"The research reported herein was...done by the Cornell Aeronautical Laboratory, Inc., for Arnold Engineering Development Center (AEDC) Air Force Systems Command (AFSC), under Program element 62405214, Project 6951, Task 695104."

Approximate solutions for nonequilibrium airflow in hypersonic nozzles,

Contract no. AF40(600)-804. AEDC TN-60-181. Arnold Engineering Development Center, Arnold Air Force Station, Tennessee. Air Research and Development Command, United States Air Force."

Six who changed the world: Moses, Jesus, Paul, Marx, Freud, Einstein.

Mode of access: Internet.