5 papers
Leakage detection for a transmon-based surface code
B. M. Varbanov, F. Battistel, B. M. Tarasinski +4
Leakage outside of the qubit computational subspace, present in many leading experimental platforms, constitutes a threatening error for quantum error correction (QEC) for qubits.…
Protecting quantum entanglement from leakage and qubit errors via repetitive parity measurements
C. C. Bultink, T. E. O'Brien, R. Vollmer +9
Protecting quantum information from errors is essential for large-scale quantum computation. Quantum error correction (QEC) encodes information in entangled states of many qubits,…
A fast, low-leakage, high-fidelity two-qubit gate for a programmable superconducting quantum computer
M. A. Rol, F. Battistel, F. K. Malinowski +8
A common approach to realize conditional-phase (CZ) gates in transmon qubits relies on flux control of the qubit frequency to make computational states interact with non-computatio…
Quantum phase estimation of multiple eigenvalues for small-scale (noisy) experiments
T. E. O'Brien, B. Tarasinski, B. M. Terhal
Quantum phase estimation is the workhorse behind any quantum algorithm and a promising method for determining ground state energies of strongly correlated quantum systems. Low-cost…
Machine-learning-assisted correction of correlated qubit errors in a topological code
P. Baireuther, T. E. O'Brien, B. Tarasinski +1
A fault-tolerant quantum computation requires an efficient means to detect and correct errors that accumulate in encoded quantum information. In the context of machine learning, ne…