Superconducting Circuits for Quantum Information¶
Devoret, M. H., & Schoelkopf, R. J. (2013). Superconducting Circuits for Quantum Information: An Outlook. Science, 339(6124), 1169-1174.
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Primes¶
- Coherence Breakdown Under External Interaction
- For state-of-the-art 2024 devices, T₂ (spin-echo or CPMG-corrected coherence time) ranges from 10 to 200 microseconds, fundamentally limited by relaxation T₁ (energy decay timescale 10-500 μs) and dephasing (pure dephasing from low-frequency noise fluctuations).
This sourceReviews superconducting-qubit coherence (T₁, T₂), decoherence channels, and the need for quantum error correction to stay coherent. SUPPORTS the transmon-decoherence (D13-172) and T₂-limited-utility (D13-166) claims. NOTE: original entry mis-cited venue as 'Reviews of Modern Physics, 85(3), 1103–1134' — corrected to Science 339, 1169–1174.
- For state-of-the-art 2024 devices, T₂ (spin-echo or CPMG-corrected coherence time) ranges from 10 to 200 microseconds, fundamentally limited by relaxation T₁ (energy decay timescale 10-500 μs) and dephasing (pure dephasing from low-frequency noise fluctuations).
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