Free Energy
osti: 960377
75
grantno: DE-AC02-05CH11231
Crooks, Gavin E
71
74
Statistical Mechanics
Metrics
Thermodynamics
Measuring Thermodynamic Length
4
Entropy
Lawrence Berkeley National Laboratory
rep-no: LBNL-1924E
Journal Name: Physical Review Letters; Journal Volume: 99; Related Information: Journal Publication Date: 2007
Transformations
Physical Biosciences Division
Computerized Simulation
Thermodynamic length is a metric distance between equilibrium thermodynamic states. Among other interesting properties, this metric asymptotically bounds the dissipation induced by a finite time transformation of a thermodynamic system. It is also connected to the Jensen-Shannon divergence, Fisher information, and Rao's entropy differential metric. Therefore, thermodynamic length is of central interestin understanding matter out of equilibrium. In this Letter, we will consider how to denethermodynamic length for a small system described by equilibrium statistical mechanics and how to measure thermodynamic length within a computer simulation. Surprisingly, Bennett's classic acceptance ratio method for measuring free energy differences also measures thermodynamic length.
ark: ark:/67531/metadc926490
2007-09-07