Effect of noisy channels on the transmission of mesoscopic twin-beam states
arXiv:2107.01920 · doi:10.1364/OE.436079
Abstract
Quantum properties of light, which are crucial resources for Quantum Technologies, are quite fragile in nature and can be degraded and even concealed by the environment. We show, both theoretically and experimentally, that mesoscopic twin-beam states of light can preserve their nonclassicality even in the presence of major losses and different types of noise, thus suggesting their potential usefulness to encode information in Quantum Communication protocols. We develop a comprehensive general analytical model for a measurable nonclassicality criterion and find thresholds on noise and losses for the survival of entanglement in the twin beam.
15 pages
References in corpus (7)
- High-dimensional quantum communication: benefits, progress, and future challenges
- Quantum homodyne tomography of a two-photon Fock state
- Sub-shot-noise photon-number correlation in mesoscopic twin-beam of light
- Impact of turbulence in long range quantum and classical communications
- Conditional measurements on multimode pairwise entangled states from spontaneous parametric downconversion
- Comparative study of nonclassicality, entanglement, and dimensionality of multimode noisy twin beams
- Experimental quantification of the entanglement of noisy twin beams