5 papers
A high-fidelity two-qubit gate for multimode superconducting P-mon qubits
Frederik Pfeiffer, Federico A. Roy, Niklas J. Glaser +11
To scale superconducting quantum processors, it is essential to achieve long coherence times while engineering interactions that do not introduce additional decoherence channels. I…
Parametric multi-element coupling architecture for coherent and dissipative control of superconducting qubits
G. B. P. Huber, F. A. Roy, L. Koch +20
As systems for quantum computing keep growing in size and number of qubits, challenges in scaling the control capabilities are becoming increasingly relevant. Efficient schemes to…
Sub-Harmonic Control of a Fluxonium Qubit via a Purcell-Protected Flux Line
Johannes Schirk, Florian Wallner, Longxiang Huang +21
Protecting qubits from environmental noise while maintaining strong coupling for fast high-fidelity control is a central challenge for quantum information processing. Here, we demo…
Parity-dependent state transfer for direct entanglement generation
Federico A. Roy, João H. Romeiro, Leon Koch +19
As quantum information technologies advance, challenges in scaling and connectivity persist, particularly the need for long-range qubit connectivity and efficient entanglement gene…
Sensitivity-Adapted Closed-Loop Optimization for High-Fidelity Controlled-Z Gates in Superconducting Qubits
Niklas J. Glaser, Federico A. Roy, Ivan Tsitsilin +13
Achieving fast and high-fidelity qubit operations is crucial for unlocking the potential of quantum computers. In particular, reaching low gate errors in two-qubit gates has been a…