Quantum Nondemolition Measurement of a Superconducting Flux Qubit
Kohji Takashima, Munehiro Nishida, Shigemasa Matsuo +1 more
Quantum nondemolition (QND) measurements allow us to measure an observable of a quantum system without introducing a back‐action on this observable due to the measurement itself. Here we propose a method for the QND measurement of a superconducting flux qubit by extending the spin QND measurement. Under an adequate condition, qubit and interaction Hamiltonian satisfy QND conditions and then QND measurement of a superconducting flux qubit is possible.
AIP conference proceedings•Jan 1, 2006•1 citation