  A finite-time fluctuation theorem for the diffusion-influenced surface
reaction A <=> B is investigated for spherical and Janus catalytic particles.
The finite-time rates and thermodynamic force are analytically calculated by
solving diffusion equations with the special boundary conditions of the
finite-time fluctuation theorem. Theory is compared with numerical simulations
carried out with two different methods: a random walk algorithm and
multiparticle collision dynamics.
