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Draft:Quantum phased array

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A quantum phased array (QPA) is an array of quantum-coherent elements—such as emitters, modulators, receivers, and detectors—designed to transmit, manipulate, and measure quantum fields (for example, quantized electromagnetic fields). By controlling the relative phases and amplitudes across many elements, a QPA can shape quantum states in space and time for tasks in sensing, communication, and information processing.[1][2]

Concept

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Quantum phased arrays generalize the idea of classical phased arrays to quantum fields. Instead of steering and shaping classical waves alone, a QPA aims to prepare, transform, and detect quantum states or fields, potentially across multiple degrees of freedom (e.g., spatial mode, polarization, frequency, time bin, or quadratures). In this context, “phasing” refers to quantum coherent control of the state across the array so that collective interference determines the resulting state wavefunction.

References

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  1. ^ Gurses, Volkan (13 June 2024). "Free-space quantum information platform on a chip". arXiv:2406.09158. {{cite journal}}: Cite journal requires |journal= (help)
  2. ^ Gurses, Volkan; Davis, Samantha I.; Valivarthi, Raju; Sinclair, Neil; Spiropulu, Maria; Hajimiri, Ali (29 July 2025). "An on-chip phased array for non-classical light". Nature Communications. 16 (1): 6849. Bibcode:2025NatCo..16.6849G. doi:10.1038/s41467-025-61886-9. ISSN 2041-1723. PMC 12307807. PMID 40730837.