BEGIN:VCALENDAR VERSION:2.0 CALSCALE:GREGORIAN PRODID:iCalendar-Ruby BEGIN:VEVENT CATEGORIES:Lectures & Presentations DESCRIPTION:The Physics & Astronomy Colloquium Series presents Thomas Ihn o f ETH\, Zurich discussing "Few-electron Graphene Quantum Dots" on April 1.\ n\n \n\nJoin on your computer or mobile app Click here to join the meeting Or call in (audio only) +1 614-706-6572\,\,486117536# United States\, Col umbus Phone Conference ID: 486 117 536# \n\nAbstract: It has become possib le to fabricate high-quality quantum dots in bilayer graphene only recently (M. Eich et al.\, Phys. Rev. X 8\, 031023 (2018))\, despite early predicti ons that the material would offer advantageous properties for realizing qua ntum dot qubits. In addition to the electron spin\, the valley degree-of-fr eedom and the topological material\n\nproperties lead to interesting physic s in these structures. For example\, the valley degree-of-freedom leads to a valley-blockade phenomenon in double quantum dots\, in addition to the we ll-known spin-blockade physics. Furthermore\, topology leads to a gate-tuna ble valley g-factor in individual quantum dots. \n\nIn this talk I will des cribe the corresponding experiments that also involve electron counting and gate pulsing\, leading to the first measurements of the spin-relaxation ti mes in these systems. DTEND:20220401T210000Z DTSTAMP:20240921T104134Z DTSTART:20220401T201000Z GEO:39.322732;-82.10287 LOCATION:Walter Hall\, 145 SEQUENCE:0 SUMMARY:Physics Colloquium | Few-electron Graphene Quantum Dots\, April 1 UID:tag:localist.com\,2008:EventInstance_39509087212965 URL:https://calendar.ohio.edu/event/physics_colloquium_few-electron_graphen e_quantum_dots_april_1 END:VEVENT END:VCALENDAR