Quantum optical reconstruction scheme using weak values
  A quantum state contains the maximal amount of information available for a given quantum system. In this paper we use weak-value expressions to reconstruct quantum states of continuous-variable systems in the quantum optical domain. The role played by postselecting measured data will be particularly emphasized in the proposed setup, which is based on an interferometer just using simple homodyne detection. 
Joachim Fischbach and Matthias Freyberger
quant-ph