Thousands of foundry-fabricated quantum-dot spin-photon interfaces demonstrate state-of-the-art efficiency, stable near-unity purity, seven-partite entanglement, and cross-source indistinguishability.
How to Enhance Dephasing Time in Superconducting Qubits
2 Pith papers cite this work. Polarity classification is still indexing.
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abstract
We theoretically investigate the influence of designed pulse sequences in restoring quantum coherence lost due to background noise in superconducting qubits. We consider both 1/f noise and Random Telegraph Noise, and show that the qubit coherence time can be substantially enhanced by carefully engineered pulse sequences. Conversely, the time dependence of qubit coherence under external pulse sequences could be used as a spectroscopic tool for extracting the noise mechanisms in superconducting qubits, i.e. by using Uhrig's pulse sequence one can obtain information about moments of the spectral density of noise. We also study the effect of pulse sequences on the evolution of the qubit affected by a strongly coupled fluctuator, and show that the non-Gaussian features in decoherence are suppressed by the application of pulses.
fields
quant-ph 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
Dynamical decoupling extends QD electron spin coherence to 298 ns and improves simulated spin-photon-photon entanglement fidelity by 20% in a micropillar cavity.
citing papers explorer
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Industry-ready spin-photon interfaces for hybrid photonic quantum computing
Thousands of foundry-fabricated quantum-dot spin-photon interfaces demonstrate state-of-the-art efficiency, stable near-unity purity, seven-partite entanglement, and cross-source indistinguishability.
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Dynamical decoupling of a quantum dot spin in a micropillar cavity for spin-multiphoton entanglement
Dynamical decoupling extends QD electron spin coherence to 298 ns and improves simulated spin-photon-photon entanglement fidelity by 20% in a micropillar cavity.