All-Microwave Leakage Reduction Units for Quantum Error Correction with Superconducting Transmon Qubits
J. F. Marques, H. Ali, B. M. Varbanov, M. Finkel, H. M. Veen, S. L. M. van der Meer, S. Valles-Sanclemente, N. Muthusubramanian, M. Beekman, N. Haider, B. M. Terhal, L. DiCarlo
DOI 10.1103/PhysRevLett.130.250602 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Minimizing leakage from computational states is a challenge when using many-level systems like superconducting quantum circuits as qubits. We realize and extend the quantum-hardware-efficient, all-microwave leakage reduction unit (LRU) for transmons in a circuit QED architecture proposed by Battistel et al. This LRU effectively reduces leakage in the second- and third-excited transmon states with up to 99% efficacy in 220 ns, with minimum impact on the qubit subspace. As a first application in the context of quantum error correction, we show how multiple simultaneous LRUs can reduce the error detection rate and suppress leakage buildup within 1% in data and ancilla qubits over 50 cycles of a weight-2 stabilizer measurement.
Similar papers
Hardware-Efficient Leakage-Reduction Scheme for Quantum Error Correction with Superconducting Transmon Qubits
similarity 0.95F. Battistel et al.
Source status unknown — claims are unverified
Fast Flux-Activated Leakage Reduction for Superconducting Quantum Circuits
similarity 0.92Nathan Lacroix et al.
Source status unknown — claims are unverified
All-microwave leakage reduction units for quantum error correction with superconducting transmon qubits
similarity 0.92J. F. Marques et al. · 2023 · arXiv:2302.09876
Source status unknown — claims are unverified
Measuring and Suppressing Quantum State Leakage in a Superconducting Qubit
similarity 0.91Zijun Chen et al.
Source status unknown — claims are unverified
Understanding the effects of leakage in superconducting quantum-error-detection circuits
similarity 0.90Joydip Ghosh et al.
Source status unknown — claims are unverified
Erasure Detection of a Dual-Rail Qubit Encoded in a Double-Post Superconducting Cavity
similarity 0.89Akshay Koottandavida et al.
Source status unknown — claims are unverified