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SUMMARY:Coherent microwave control of muonium
DTSTART;VALUE=DATE-TIME:20220901T144000Z
DTEND;VALUE=DATE-TIME:20220901T150000Z
DTSTAMP;VALUE=DATE-TIME:20220826T121741Z
UID:indico-contribution-3656@indico.stfc.ac.uk
DESCRIPTION:Speakers: Andrin Doll (Paul Scherrer Institute)\nWe demonstrat
 e the most fundamental coherent control techniques by excitation of microw
 ave spin transitions in muonium\, namely driven Rabi oscillations and Rams
 ey fringes upon free evolution. Unprecedented performance is achieved by t
 riggering microwave pulses by a single implanted muon\, which enables cohe
 rent spin manipulation of individual muonium atoms.\n\nAs a first example\
 , we suppress extrinsic line broadening with the Ramsey experiment on stro
 ngly coupled muonium in SiO$_2$ (Fig. 1). As a second example\, we retriev
 e the electron $g$-factor of bond-centered muonium in Si using the double 
 electron-muon resonance (DEMUR) technique and decouple the system from its
  environment by strong driving of the electron-muon double quantum transit
 ion.\n\nOverall\, we expect that this capability will provide a powerful t
 ool to investigate the effect of the environment on isolated coupled spins
 \, uncover the details of coupled electron-muon systems in matter and vali
 date quantum electrodynamics in the context of (vacuum) muonium spectrosco
 py.\n\n![Microwave experiments with muonium formed in SiO$_2$ at 280 K\, s
 howing Rabi oscillations excited by 3.6 GHz microwaves (left) and phase-co
 herent Ramsey fringes excited by 30 ns pulses (right). The upper schemes d
 epict the timing of the experiment.][1]\n\n\n  [1]: https://drive.switch.c
 h/index.php/s/ldNpkYnVkvrkP6m/download\n\nhttps://indico.stfc.ac.uk/event/
 53/contributions/3656/
LOCATION:Science and Technology Campus\, University of Parma
URL:https://indico.stfc.ac.uk/event/53/contributions/3656/
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