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Unveiling a new quantum frontier: frequency-domain entanglement - EurekAlert
Entanglement has paved the way for enriching our understanding of physics and implementing quantum information technology. Scientists at POSTECH introduce a new type of entanglement: Frequency-domain photon number-path entanglement. Utilizing a frequency beam splitter converting single-photon frequency with a 50% probability, they observe a two-fold enhanced resolution of interference pattern compared to the single-photon counterpart, with unprecedented stability. This advancement highlights significant potential for uncovering new quantum phenomena and scaling quantum information processing.
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