Fluctuation relations for driven coupled classical two-level systems
  We theoretically investigate fluctuation relations in a classical incomplete measurement process where just partial information is available. The scenario we consider consists of two coupled single-electron boxes where one or both devices can undergo a non-equilibrium transformation according to a chosen protocol. The entropy production of only one of the two boxes is recorded and fluctuation relations for this quantity are put to a test, showing strong modifications whose nature depends upon the specific case study. 
Massimo Borrelli, Jonne V. Koski, Sabrina Maniscalco and Jukka P.   Pekola
cond-mat.stat-mech quant-ph