TY - JOUR AU - Sorci, Gabriel AU - Foo, Joshua AU - Pikovski, Igor AU - Sanner, Christian AU - Leibfried, Dietrich C2 - Physical Review Letters DA - 2026-04-20 04:04:00 LA - en PB - Physical Review Letters PY - 2026 TI - Quantum signatures of proper time in optical ion clocks UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=960526 ER -