2007/07/23 by Nathan S. Williams, Andrew N. Jordan · 2 citations
Physics and Astronomy · #cond-mat.mes-hall #quant-ph
paper · pdf · doi:10.1103/physrevlett.100.026804
published as Phys. Rev. Lett. 100, 026804 (2008) · 4 pages, 2 figures
arxiv created 2007/07/23 · arxiv updated 2009/12/01
An implementation of weak values is investigated in solid-state qubits. We demonstrate that a weak value can be non-classical if and only if a Leggett-Garg inequality can also be violated. Generalized weak values are described, where post-selection 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 double-dot charge qubit.