Low-Noise Intensity Amplification of a Bright Entangled Beam
- 1 October 2021
- journal article
- research article
- Published by IOP Publishing in Chinese Physics Letters
Abstract
We experimentally demonstrate a low-noise phase-sensitive amplifier (PSA) scheme that is able to amplify bright entangled beams at a high level intensity gain of up to 4.4. Moreover, we demonstrate that the PSA scheme introduces much less uncorrelated extra noise to the entangled state than the phase-insensitive amplifier scheme with the same intensity gain. This PSA scheme has potential applications for quantum communication in continuous variable regimes.Keywords
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