Beyond the standard quantum limit for parametric amplification of broadband signals
Abstract The low-noise amplification of weak microwave signals is crucial for countless protocols in quantum information processing. Quantum mechanics sets an ultimate lower limit of half a photon to the added input noise for phase-preserving amplification of narrowband signals, also known as the st...
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Main Authors: | , , , , , , , , , , |
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Format: | article |
Language: | EN |
Published: |
Nature Portfolio
2021
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Subjects: | |
Online Access: | https://doaj.org/article/3bd1f2b588c34a088b8a3a8a3cc5738f |
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