9 papers
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…
Anharmonicity and Charge-Noise Sensitivity of Fraunhofer Qubit
Longyu Ma, Tony Liu, Javad Shabani +3
We present a theory of a flux-tunable superconducting qubit, the "Fraunhofer qubit," based on the Fraunhofer interference in a wide ballistic Josephson junction. As magnetic flux t…
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…
Strongly anharmonic flux-tunable transmon based on InAs-Al 2D heterostructure
Shukai Liu, Arunav Bordoloi, Jacob Issokson +4
The gatemon qubits, made of transparent superconducting-semiconducting Josephson junctions, typically have even weaker anharmonicity than the opaque AlOx-junction transmons. Howeve…
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…