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SUMMARY:Talk: Individual electron and nuclear spin qubits controlled v
 ia superconducting circuits
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 00000010000000647738C4FE10894BB49627D0ACEC7B54
DESCRIPTION:Title: Individual electron and nuclear spin qubits control
 led via superconducting circuits Speaker: James O`Sullivan Organizer: 
 Chair of Experimental Physics (Prof. Eichler) Abstract: Electron Param
 agnetic Resonance is a powerful spectroscopic technique for investigat
 ing paramagnetic materials\, with applications in chemistry\, biology\
 , materials science\, quantum computing and more. However\, the field 
 has largely been restricted to ensemble measurements involving large q
 uantities of spins\, owing to the weak coupling between electron spins
  and external magnetic fields. Measurement of individual spins has pre
 viously been restricted to selected systems\, such as nitrogen-vacancy
  centres in diamond\, with favourable properties which enable single-s
 pin detection via optical readout or other means. I will present a pla
 tform for detection of generic single electron spins via inductive cou
 pling to a superconducting resonator and a single microwave photon det
 ector. I will show that a variety of techniques can be employed to man
 ipulate both individual electron spins and nearby nuclear spins in sol
 ids\, including single-shot quantum non-demolition measurement of indi
 vidual 183W nuclear spins coupled to Er3+electron spin defects in a Ca
 WO4 crystal host and entanglement of two 183W spins. We also study Tb3
 + electron spins in CaWO4 at magnetic field noise insensitive points k
 nown as &#8216\;clock transitions&#8217\;. Operation at these points y
 ields electron spin coherence times in excess of 10 ms\, enabling cohe
 rent interaction between individual Tb3+ spins and the electromagnetic
  field of the superconducting resonator.
DTSTART:20260624T120000Z
DTEND:20260624T130000Z
LOCATION:Lecture Hall F\, Staudtstr. 5
DTSTAMP:20260718T191741Z
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