BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-9270
DTSTART:20250627T150000Z
DTEND:20250627T170000Z
DTSTAMP:20260413T133136Z
LAST-MODIFIED:20250522T150909Z
LOCATION:5310 CH
SUMMARY:Fast\, high fidelity\, on demand qubit initialization out of a
  latched state using baseband pulses\, Preliminary Exam\, Piotr Marcin
 iec\, Physics PhD Graduate Student
DESCRIPTION:Latched schemes provide high-fidelity readout of quantum d
 ot qubits by exploiting long-lived\, nonequilibrium states with easily
  measured charge occupations. While long-lived latches simplify readou
 t\, fast re-initialization is also desirable and cannot be accomplishe
 d by relying on the natural decay process of the latched state. In thi
 s work\, we demonstrate fast\, high-fidelity reset of a latched quantu
 m dot hybrid qubit that can be deployed on demand\, using only baseban
 d pulses. Our protocol circumnavigates the slow decay process of the l
 atched state by pulsing to a region in gate-voltage space in which the
  latched state resets in a fast\, two-step process. With this pulse\, 
 we achieve reset fidelities as high as 98% with reload times as short 
 as 2μs. Our work provides a steppingstone to robust quantum error cor
 rection in quantum dot qubits\, where the readout and initialization t
 imes should be comparable to gate times.
URL:https://www.physics.wisc.edu/events/?id=9270
END:VEVENT
END:VCALENDAR