22 citations · 32 across the 3 of their papers we have counts for
8 papers
Millisecond coherence in a superconducting qubit
Aaron Somoroff, Quentin Ficheux, Raymond A. Mencia +3
Increasing the degree of control over physical qubits is a crucial component of quantum computing research. We report a superconducting qubit of fluxonium type with the Ramsey cohe…
Arbitrary controlled-phase gate on fluxonium qubits using differential ac-Stark shifts
Haonan Xiong, Quentin Ficheux, Aaron Somoroff +7
Large scale quantum computing motivates the invention of two-qubit gate schemes that not only maximize the gate fidelity but also draw minimal resources. In the case of superconduc…
Fast logic with slow qubits: microwave-activated controlled-Z gate on low-frequency fluxoniums
Quentin Ficheux, Long B. Nguyen, Aaron Somoroff +4
We demonstrate a controlled-Z gate between capacitively coupled fluxonium qubits with transition frequencies and . The gate is activated by…
Proposal for entangling gates on fluxonium qubits via a two-photon transition
Konstantin N. Nesterov, Quentin Ficheux, Vladimir E. Manucharyan +1
We propose a family of microwave-activated entangling gates on two capacitively coupled fluxonium qubits. A microwave pulse applied to either qubit at a frequency near the half-fre…
Quantum adiabatic elimination at arbitrary order for photon number measurement
Alain Sarlette, Pierre Rouchon, Antoine Essig +2
Adiabatic elimination is a perturbative model reduction technique based on timescale separation and often used to simplify the description of composite quantum systems. We here ana…
Sequential dispersive measurement of a superconducting qubit
Théau Peronnin, Danijela Marković, Quentin Ficheux +1
We present a superconducting device that realizes the sequential measurement of a transmon qubit. The device disables common limitations of dispersive readout such as Purcell effec…