Standard linear beam splitters operate via unitary transformations that preserve the phase coherence of photons and are routinely used to generate and manipulate quantum entanglement.
Evidence for · 3
Theory for the Beam Splitter in Quantum Optics: Quantum Entanglement of Photons and Their Statistics, HOM Effect
2022 · cited by 24
Paper [0] outlines standard linear beam splitter theory in quantum optics based on unitary operations like transmission and reflection coefficients, which do not inherently induce photon decoherence.
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More for · 2
Quantum Entanglement of Monochromatic and Non-Monochromatic Photons on a Waveguide Beam Splitter
2021 · cited by 6
Paper [1] demonstrates that waveguide beam splitters actively generate and preserve quantum entanglement between photons rather than destroying their coherence.
Observation of Gaussian quantum correlations existence of photons under linear beam splitter
2022 · cited by 0
Paper [9] shows that linear beam splitters preserve and even generate Gaussian quantum correlations and entanglement from input photon states.