10 papers · 1 filter
Cross-Resonant Gates in Hybrid Fluxonium-Transmon Systems
Nikola D. Dimitrov, Chen Wang, Vladimir E. Manucharyan +1
We propose a scalable fluxonium-transmon-fluxonium (FTF) system that utilizes a central transmon to mediate high-fidelity gates and parity checks between two fluxonium qubits witho…
Proposal for erasure conversion in integer fluxonium qubits
Jiakai Wang, Raymond A. Mencia, Vladimir E. Manucharyan +1
We propose an erasure conversion scheme on the and qubits in integer fluxonium qubits (IFQs), which are both first-order insensitive to…
CNOT gates in inductively coupled multi-fluxonium systems
Valeria DÃaz Moreno, Nikola D. Dimitrov, Vladimir E. Manucharyan +1
High-fidelity two-qubit gates have been demonstrated in systems of two fluxonium qubits; however, the realization of scalable quantum processors requires maintaining low error rate…
Raising the Cavity Frequency in cQED
Raymond A. Mencia, Taketo Imaizumi, Igor A. Golovchanskiy +2
The basic element of circuit quantum electrodynamics (cQED) is a cavity resonator strongly coupled to a superconducting qubit. Since the inception of the field, the choice of the c…
Photon-instanton scattering in a superconducting circuit: Beyond the very high impedance regime
Amir Burshtein, David Shuliutsky, Roman Kuzmin +2
Instantons, semi-classical trajectories of quantum tunneling in imaginary time, have long been used to study thermodynamic and transport properties in a myriad of condensed matter…
Non-Markovian Relaxation Spectroscopy of Fluxonium Qubits
Ze-Tong Zhuang, Dario Rosenstock, Bao-Jie Liu +3
Recent studies have shown that parasitic two-level systems (TLS) in superconducting qubits, which are a leading source of decoherence, can have relaxation times longer than the qub…