Characterizing potentials by a generalized Boltzmann factor

2007/05/02 by V. Blickle, Valentin Blickle, Thomas Speck +5 · 2 citations
Engineering · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Nanopore and Nanochannel Transport Studies #cond-mat.soft #cond-mat.stat-mech #stochastic dynamics and bifurcation

paper · pdf · doi:10.1103/physreve.75.060101

published as Phys. Rev. E 75, 060101 (2007)

arxiv created 2007/05/02 · openalex publication_date 2007/06/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Based on the concept of a nonequilibrium steady state, we present a method to experimentally determine energy landscapes acting on colloidal systems. By measuring the stationary probability distribution and the current in the system, we explore potential landscapes with barriers up to several hundred k_BT. As an illustration, we use this approach to measure the effective diffusion coefficient of a colloidal particle moving in a tilted potential.

Cited by

• Nonequilibrium version of the Einstein relation
• Relaxation of a colloidal particle into a nonequilibrium steady state

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