Francesca Tosto
- Quantum Information and Cryptography
- Quantum and electron transport phenomena
- Quantum Computing Algorithms and Architecture
- Neural Networks and Reservoir Computing
IQM (Finland)
2022-2023
Tunable coupling of superconducting qubits has been widely studied due to its importance for isolated gate operations in scalable quantum processor architectures. Here, we demonstrate a tunable qubit-qubit coupler based on floating transmon device, which allows us place at least 2 mm apart from each other while maintaining over 50-MHz between the and qubits. In introduced tunable-coupler design, both qubit-coupler couplings are mediated by two waveguides instead relying direct capacitive...
Superconducting qubits are one of the most promising candidates to implement quantum computers. The superiority superconducting computers over any classical device in simulating random but well-determined circuits has already been shown two independent experiments and important steps have taken error correction. However, currently wide-spread qubit designs do not yet provide high enough performance enable practical applications or efficient scaling logical owing several following issues:...
Tunable coupling of superconducting qubits has been widely studied due to its importance for isolated gate operations in scalable quantum processor architectures. Here, we demonstrate a tunable qubit-qubit coupler based on floating transmon device which allows us place at least 2 mm apart from each other while maintaining over 50 MHz between the and qubits. In introduced tunable-coupler design, both qubit-coupler couplings are mediated by two waveguides instead relying direct capacitive...