[Seminar] Szeminárium - Seminar: Ivády Viktor

[juhasz]

SZFI Szeminárium

                                   Ivády Viktor
                                   Wigner FK SZFI

           Ab initio study of defect qubits for hyperpolarization and
quantum sensing

2019. szeptember 17. kedd, 10.00, KFKI Telephely, I. épület 1. emeleti
Tanácsterem

Here we present our latest theoretical results on microwave free
ultrasensitive detection of magnetic fields at the nanoscale by
nitrogen-vacancy center in diamond (NV). We developed methods to
calculate the optical spin polarization of the electron spin and its
transfer to the neighbor nuclear spins. Our results explain well the
features in the magnetic field dependent photoluminescence spectrum of
NV. Finally, we show an ab-initio theory of spin-strain interaction of
NV and divacancy in silicon carbide (V2). Our theory predicts that the
spin-stress coupling is similar or stronger for V2 than for NV.
Furthermore, we identified an important spin-strain term in the
spin-strain Hamiltonian that may be employed to coherently drive the
electron spin by strain fields.

Minden érdeklődőt szívesen látunk! - Everyone is welcome to attend.

Juhász Róbert
szfi-seminar at wigner.mta.hu
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