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Spatially correlated classical and quantum noise in driven qubits: The good, the bad, and the ugly
Ji Zou, Stefano Bosco, Daniel Loss
Correlated noise across multiple qubits poses a significant challenge for achieving scalable and fault-tolerant quantum processors. Despite recent experimental efforts to quantify…
High-fidelity two-qubit gates of hybrid superconducting-semiconducting singlet-triplet qubits
Maria Spethmann, Stefano Bosco, Andrea Hofmann +2
Hybrid systems comprising superconducting and semiconducting materials are promising architectures for quantum computing. Superconductors induce long-range interactions between the…
Noise-correlation spectrum for a pair of spin qubits in silicon
J. Yoneda, J. S. Rojas-Arias, P. Stano +5
Semiconductor qubits are appealing for building quantum processors as they may be densely integrated due to small footprint. However, a high density raises the issue of noise corre…
Shor-Laflamme distributions of graph states and noise robustness of entanglement
Daniel Miller, Daniel Loss, Ivano Tavernelli +3
The Shor-Laflamme distribution (SLD) of a quantum state is a collection of local unitary invariants that quantify -body correlations. We show that the SLD of graph states can be…
Coherence of a driven electron spin qubit actively decoupled from quasi-static noise
Takashi Nakajima, Akito Noiri, Kento Kawasaki +11
The coherence of electron spin qubits in semiconductor quantum dots suffers mostly from low-frequency noise. During the last decade, efforts have been devoted to mitigate such nois…
Universal quantum computation in the surface code using non-Abelian islands
Katharina Laubscher, Daniel Loss, James R. Wootton
The surface code is currently the primary proposed method for performing quantum error correction. However, despite its many advantages, it has no native method to fault-tolerantly…