163 citations · 1k across the 41 of their papers we have counts for
4 papers · 2 filters
Coherent Feedback Improved Qubit Initialization in the Dispersive Regime
Luke C. G. Govia, Frank K. Wilhelm
Readout of the state of a superconducting qubit by homodyne detection of the output signal from a dispersively coupled microwave resonator is a common technique in circuit quantum…
Entanglement Generated by the Dispersive Interaction: The Dressed Coherent State
Luke C. G. Govia, Frank K. Wilhelm
In the dispersive regime of qubit-cavity coupling, classical cavity drive populates the cavity, but leaves the qubit state unaffected. However, the dispersive Hamiltonian is derive…
Scalable two- and four-qubit parity measurement with a threshold photon counter
Luke C. G. Govia, Emily J. Pritchett, B. L. T. Plourde +3
Parity measurement is a central tool to many quantum information processing tasks. In this Letter, we propose a method to directly measure two- and four-qubit parity with low overh…
High-fidelity qubit measurement with a microwave photon counter
Luke C. G. Govia, Emily J. Pritchett, Canran Xu +4
High-fidelity, efficient quantum nondemolition readout of quantum bits is integral to the goal of quantum computation. As superconducting circuits approach the requirements of scal…