{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T09:02:51Z","timestamp":1785402171668,"version":"3.56.0"},"reference-count":19,"publisher":"Optica Publishing Group","issue":"2","license":[{"start":{"date-parts":[[2026,1,12]],"date-time":"2026-01-12T00:00:00Z","timestamp":1768176000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR-OA"},{"start":{"date-parts":[[2026,1,12]],"date-time":"2026-01-12T00:00:00Z","timestamp":1768176000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11974204"],"award-info":[{"award-number":["11974204"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["12174215"],"award-info":[{"award-number":["12174215"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Quantum Science and Technology-National Science and Technology Major Project","award":["2021ZD0300705"],"award-info":[{"award-number":["2021ZD0300705"]}]},{"name":"Taishan Scholars Program"}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Express"],"published-print":{"date-parts":[[2026,1,26]]},"abstract":"<jats:p>\n                    Angular localization of remote optical objects is a fundamental challenge in fields such as remote sensing and astrometry. We propose the piecemeal method for a telescope array, with explicit formulas showing its key advantages strictly: higher precision, efficiency, and robustness, which are further confirmed by numerical simulations. Specifically, our method achieves a 10\n                    <jats:sup>4<\/jats:sup>\n                    precision improvement with 10\n                    <jats:sup>5<\/jats:sup>\n                    photon number reduction compared to existing telescope arrays, and achieves precision improvements of 10\n                    <jats:sup>3<\/jats:sup>\n                    and 10\n                    <jats:sup>2<\/jats:sup>\n                    over the Gaia telescope and the ultimate quantum limit for incoherent imaging, respectively, under comparable photon numbers. We have also presented a reference-object-based implementation framework for our method that seamlessly integrates with existing optical interferometric systems.\n                  <\/jats:p>","DOI":"10.1364\/oe.582665","type":"journal-article","created":{"date-parts":[[2025,12,15]],"date-time":"2025-12-15T09:00:07Z","timestamp":1765789207000},"page":"1424","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Improving the precision and efficiency of an optical telescope array by the piecemeal method"],"prefix":"10.1364","volume":"34","author":[{"given":"Jian","family":"Leng","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/03cve4549","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yi-Xin","family":"Shen","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/03cve4549","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhou-Kai","family":"Cao","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/03cve4549","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiang-Bin","family":"Wang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/03cve4549","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Jinan Institute of Quantum Technology and Jinan branch"},{"name":"International Quantum Academy"},{"name":"Frontier Science Center for Quantum Information"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,1,12]]},"reference":[{"key":"oe-34-2-1424-R3","doi-asserted-by":"publisher","first-page":"070503","DOI":"10.1103\/PhysRevLett.109.070503","type":"journal-article","volume":"109","author":"Gottesman","year":"2012","journal-title":"Phys. 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