Using a Szilard engine to illustrate the validity of the modified   Jarzynski equality in presence of measurement errors
  It has recently been shown that the Jarzynski equality gets modified, when there are experimental errors in computing work. This modified result also holds good in presence of feedback. In this work, we use a simple toy model, that of a Szilard engine, to prove these results both in the presence and in absence of feedback. 
Sourabh Lahiri and Arun M. Jayannavar
cond-mat.stat-mech