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SUMMARY:Towards measuring decoherence times of Undoped GaAs/AlGaAs spin qu
 bit (SP Workshop) - Miss Egle Tylaite\, University of Cambridge\, Semicond
 uctor Physics Group
DTSTART:20151118T141500Z
DTEND:20151118T151500Z
UID:TALK60988@talks.cam.ac.uk
CONTACT:Teri Bartlett
DESCRIPTION:In this workshop I will discuss the prospects of induced doubl
 e quantum dots to improve the relaxation and coherence time of electron sp
 in qubit compared to the current record in doped GaAs heterostructures. Th
 e absence of intentional dopants is expected not only to decrease the numb
 er of small angle scattering events\, (which is observed as an increase in
  mobility and the fact that lower carrier densities may be \nachieved)\, b
 ut it also is expected to reduce RTS (Random Telegraph Signals) noise whic
 h would be beneficial for more accurate current measurements. I will prese
 nt the progress towards making an undoped \nquantum dots\, getting to the 
 last electron\, as well as the challenges of using fast measurement techni
 ques - radio frequency reflectometry.\n
LOCATION:Mott Seminar Room (Mott Building Room 531)\, Cavendish Laboratory
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