BEGIN:VCALENDAR VERSION:2.0 CALSCALE:GREGORIAN PRODID:iCalendar-Ruby BEGIN:VEVENT CATEGORIES:Lectures & Presentations DESCRIPTION:The Physics & Astronomy Colloquium Series presents Jason Petta of UCLA Department of Physics and HRL Laboratories\, Inc.\, discussing "Spi n Qubits: From a Sketch on a Napkin to Experimental Reality" on Oct. 21.\n\ n \n\nAbstract: Over twenty years ago\, Daniel Loss and David DiVincenzo pr oposed using the spin of a single electron as a quantum bit [1]. At the tim e of the proposal\, it was not possible to trap a single electron in a semi conductor device and measure its spin\, let alone demonstrate control of sp in coherence. In this colloquium\, I will give a broad overview of spin qub its\, highlighting some of the first demonstrations of single spin initiali zation\, control\, coupling\, and measurement in III/V semiconductors [2]. A recent emphasis on spin qubits in isotopically enriched silicon\, which s upports much longer spin coherence times\, has resulted in dramatic experim ental progress. I will describe recent experiments where we achieve single spin initialization and readout with errors <1%\, single qubit control with a fidelity exceeding 99.95%\, and a two-qubit gate with a fidelity of 99.8 % [3\,4]. These results pave the way for more advanced implementations usin g industrially fabricated silicon spin qubits DTEND:20221021T210000Z DTSTAMP:20240921T044243Z DTSTART:20221021T201000Z GEO:39.322732;-82.10287 LOCATION:Walter Hall\, 145 SEQUENCE:0 SUMMARY: Physics Colloquium | Spin Qubits: From a Sketch on a Napkin to Exp erimental Reality\, Oct. 21 UID:tag:localist.com\,2008:EventInstance_40844832192335 URL:https://calendar.ohio.edu/event/physics_colloquium_spin_qubits END:VEVENT END:VCALENDAR