92 citations · 401 across the 11 of their papers we have counts for
11 papers
Demonstrating a superconducting dual-rail cavity qubit with erasure-detected logical measurements
Kevin S. Chou, Tali Shemma, Heather McCarrick +31
A critical challenge in developing scalable error-corrected quantum systems is the accumulation of errors while performing operations and measurements. One promising approach is to…
Error-detectable bosonic entangling gates with a noisy ancilla
Takahiro Tsunoda, James D. Teoh, William D. Kalfus +6
Bosonic quantum error correction has proven to be a successful approach for extending the coherence of quantum memories, but to execute deep quantum circuits, high-fidelity gates b…
Dual-rail encoding with superconducting cavities
James D. Teoh, Patrick Winkel, Harshvardhan K. Babla +15
The design of quantum hardware that reduces and mitigates errors is essential for practical quantum error correction (QEC) and useful quantum computation. To this end, we introduce…
A high on-off ratio beamsplitter interaction for gates on bosonically encoded qubits
Benjamin J. Chapman, Stijn J. de Graaf, Sophia H. Xue +12
Encoding a qubit in a high quality superconducting microwave cavity offers the opportunity to perform the first layer of error correction in a single device, but presents a challen…
High Coherence in a Tileable 3D Integrated Superconducting Circuit Architecture
Peter A. Spring, Shuxiang Cao, Takahiro Tsunoda +11
We report high qubit coherence as well as low crosstalk and single-qubit gate errors in a superconducting circuit architecture that promises to be tileable to 2D lattices of qubits…
Efficient Hamiltonian programming in qubit arrays with nearest-neighbour couplings
Takahiro Tsunoda, Gaurav Bhole, Stephen A. Jones +2
We consider the problem of selectively controlling couplings in a practical quantum processor with always-on interactions that are diagonal in the computational basis, using sequen…
Mitigating realistic noise in practical noisy intermediate-scale quantum devices
Jinzhao Sun, Xiao Yuan, Takahiro Tsunoda +3
Quantum error mitigation (QEM) is vital for noisy intermediate-scale quantum (NISQ) devices. While most conventional QEM schemes assume discrete gate-based circuits with noise appe…
Rescaling interactions for quantum control
Gaurav Bhole, Takahiro Tsunoda, Peter J. Leek +1
A powerful control method in experimental quantum computing is the use of spin echoes, employed to select a desired term in the system's internal Hamiltonian, while refocusing othe…
Modelling Enclosures for Large-Scale Superconducting Quantum Circuits
P. A. Spring, T. Tsunoda, B. Vlastakis +1
Superconducting quantum circuits are typically housed in conducting enclosures in order to control their electromagnetic environment. As devices grow in physical size, the electrom…
Calibration of the cross-resonance two-qubit gate between directly-coupled transmons
A. D. Patterson, J. Rahamim, T. Tsunoda +8
Quantum computation requires the precise control of the evolution of a quantum system, typically through application of discrete quantum logic gates on a set of qubits. Here, we us…
Double-sided coaxial circuit QED with out-of-plane wiring
J. Rahamim, T. Behrle, M. J. Peterer +6
Superconducting circuits are well established as a strong candidate platform for the development of quantum computing. In order to advance to a practically useful level, architectu…