Observation of Hong-Ou-Mandel interference with scalable Yb + -photon interfaces

We present a compact optical design for a scalable trapped ion quantum processor employing a single high numerical aperture lens for the excitation of ions and collection of photons, both of which are essential for remote entanglement generation. We verified the design by performing a quantum interf...

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Published inOptics express Vol. 28; no. 26; pp. 39727 - 39738
Main Authors Kim, Junki, Jeong, Junho, Jung, Changhyun, Lee, Minjae, Park, Yunjae, Dan Cho, Dong-Il, Kim, Taehyun
Format Journal Article
LanguageEnglish
Published United States 21.12.2020
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Summary:We present a compact optical design for a scalable trapped ion quantum processor employing a single high numerical aperture lens for the excitation of ions and collection of photons, both of which are essential for remote entanglement generation. We verified the design by performing a quantum interference experiment between two photons generated by two sets of the proposed design and observed a 82(3) % suppression of coincidence within 8.13 ns time window when the two photons became indistinguishable. This design can be extended for the simultaneous generation of multiple pairs of entangled qubits with existing fiber-array devices.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.409667