Color Erasure Detectors Enable Chromatic Interferometry

Journal Article · 08 December 2019 · Physical Review Letters

DOI: https://doi.org/10.1103/physrevlett.123.243601 · OSTI ID:1802391

Qu, Luo-Yuan ^[1]; Cotler, Jordan ^[2]; Ma, Fei  ^[3]; Guan, Jian-Yu ^[4]; Zheng, Ming-Yang ^[5]; Xie, Xiuping ^[5]; Chen, Yu-Ao ^[4]; Zhang, Qiang  ^[3]; Wilczek, Frank ^[6]; Pan, Jian-Wei ^[4]

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1. University of Science and Technology of China, Shanghai (China); Jinan Institute of Quantum Technology (China); OSTI
2. Stanford Univ., CA (United States)
3. University of Science and Technology of China, Shanghai (China); Jinan Institute of Quantum Technology (China)
4. University of Science and Technology of China, Shanghai (China)
5. Jinan Institute of Quantum Technology (China)
6. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Shanghai Jiao Tong Univ. (China); Stockholm Univ. (Sweden); Arizona State Univ., Tempe, AZ (United States)

By engineering and manipulating quantum entanglement between incoming photons and experimental apparatus, we construct single-photon detectors which cannot distinguish between photons of very different wavelengths. These color-erasure detectors enable a new kind of intensity interferometry, with potential applications in microscopy and astronomy. In this work, we demonstrate chromatic interferometry experimentally, observing robust interference using both coherent and incoherent photon sources.

• Research Organization: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
• Sponsoring Organization: Chinese Academy of Sciences (CAS); European Research Council (ERC); Fannie and John Hertz Foundation; National Key R&D Program of China; National Natural Science Foundation of China (NSFC); Swedish Research Council (VR); USDOE Office of Science (SC)
• Grant/Contract Number: SC0012567
• OSTI ID: 1802391
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 24 Vol. 123; ISSN 0031-9007
• Publisher: American Physical Society (APS)Copyright Statement
• Country of Publication: United States
• Language: English