BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:R. Vathsan DTSTART:20250929T122000Z DTEND:20250929T130500Z DTSTAMP:20260423T024800Z UID:QOART2025/8 DESCRIPTION:Title: Geometric phase and entanglement dynamics in trapped ion systems\nby R. Vathsan as part of Quantum Optics and Related Topics 2025\n\n\nAbstrac t\nSystems adopted as platforms for quantum computing typically undergo d eviations from ideal dynamics due to unavoidable interactions with the env ironment. The hallmark of computational power is the entanglement in the s ystem\, which could suffer due to noise. Typically\, gate performance is a nalysed and noise characterised by Quantum Process Tomography and Bell sta te tomography. However these methods are resource intensive\, and scale ex ponentially with system size. In this work\, we propose leveraging the geo metric phase(GP) as a tool for performance assessment and noise identifica tion in the Molmer-Sorensen (MS) gate\, a commonly used entangling gate in trapped ion systems. Our findings indicate that the GP is particularly se nsitive to environmental noise occurring around twice the clock pulse time . Given that GP measurements do not require full-state tomography\, this a pproach offers a practical and experimentally feasible method to detect en tanglement and classify the nature of noise affecting the system.\n LOCATION:https://researchseminars.org/talk/QOART2025/8/ END:VEVENT END:VCALENDAR