Weak values and the Leggett-Garg inequality in solid-state qubits.

@article{Williams2008WeakVA,
  title={Weak values and the Leggett-Garg inequality in solid-state qubits.},
  author={Nathan S. Williams and Andrew N. Jordan},
  journal={Physical review letters},
  year={2008},
  volume={100 2},
  pages={026804}
}
An implementation of weak values is investigated in solid-state qubits. We demonstrate that a weak value can be nonclassical if and only if a Leggett-Garg inequality can also be violated. Generalized weak values are described in which post-selection occurs on a range of weak measurement results. Imposing classical weak values permits the derivation of Leggett-Garg inequalities for bounded operators. Our analysis is presented in terms of kicked quantum nondemolition measurements on a quantum… CONTINUE READING