Information is not physical
  The standard relations between information theory and thermodynamics are challenged. The Szilard engine is revisited and the bound proposed by Landauer is replaced by a different one which includes errors in information processing. Instead of equivalence, complementarity of information and thermodynamical entropy is advocated. Finally, the relations between error correction and self-replication of states which can carry information are discussed. 
Robert Alicki
quant-ph