13 citations · 28 across the 6 of their papers we have counts for
6 papers
Finite-momentum superconductivity from chiral bands in twisted MoTe
Yinqi Chen, Cheng Xu, Yang Zhang +1
A recent experiment has reported unconventional superconductivity in twisted bilayer MoTe, emerging from a normal state that exhibits a finite anomalous Hall effect -- a signat…
Intrinsic superconducting diode effect and nonreciprocal superconductivity in rhombohedral graphene multilayers
Yinqi Chen, Mathias S. Scheurer, Constantin Schrade
Recent experiments have revealed that superconductivity in rhombohedral tetralayer graphene can emerge from a valley-polarized and, hence, chiral normal state. The interplay of pai…
24 days-stable CNOT-gate on fluxonium qubits with over 99.9% fidelity
Wei-Ju Lin, Hyunheung Cho, Yinqi Chen +3
Fluxonium qubit is a promising building block for quantum information processing due to its long coherence time and strong anharmonicity. In this paper, we realize a 60 ns direct C…
Verifying the analogy between transversely coupled spin-1/2 systems and inductively-coupled fluxoniums
Wei-Ju Lin, Hyunheung Cho, Yinqi Chen +3
We report a detailed characterization of two inductively coupled superconducting fluxonium qubits for implementing high-fidelity cross-resonance gates. Our circuit stands out becau…
Voltage Activated Parametric Entangling Gates on Gatemons
Yinqi Chen, Konstantin N. Nesterov, Hugh Churchill +3
We describe the generation of entangling gates on superconductor-semiconductor hybrid qubits by ac voltage modulation of the Josephson energy. Our numerical simulations demonstrate…
Fast Flux Entangling Gate for Fluxonium Circuits
Yinqi Chen, Konstantin N. Nesterov, Vladimir E. Manucharyan +1
We analyze a high-fidelity two-qubit gate using fast flux pulses on superconducting fluxonium qubits. The gate is realized by temporarily detuning magnetic flux through fluxonium l…