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SUMMARY:Solid state defects for quantum information processing - Song LI (
 Wigner Research Centre for Physics\, Hungarian Academy of Sciences)
DTSTART:20240827T130000Z
DTEND:20240827T143000Z
UID:TALK220375@talks.cam.ac.uk
CONTACT:Bo Peng
DESCRIPTION:Paramagnetic fluorescent defects in semiconductors are promisi
 ng building blocks for quantum information processing [1]. The extraordina
 ry properties of defects such as the famous NV center in diamond allow opt
 ical control of the electron and nuclear spins at room temperature\, and s
 everal quantum operations have been carried out by these systems so far. T
 he discovery of similar defects in other host materials might allow for mo
 re sophisticated implementations of single-photon emitters or qubits [2]. 
 However\, major challenges persist and need to be addressed for the furthe
 r rational design and development of defects. In this talk\, I will highli
 ght how first-principles calculations can serve as an exceptionally robust
  tool for finding novel defect qubits and single-photon emitters in solids
 \, especially in hexagonal boron nitride [3\,4]\, through detailed predict
 ions of electronic\, magnetic\, and optical properties.\n\nReferences\n\n[
 1] G. Wolfowicz\, F. J. Heremans\, C. P. Anderson\, S. Kanai\, H. Seo\, A.
  Gali\, G. Galli\, and D. D. Awschalom\, Nat. Rev. Mater. 6\, 906 (2021)\n
 \n[2] H. L. Stern\, Q. Gu\, J. Jarman\, S. E. Barker\, N. Mendelson\, D. C
 hugh\, S. Schott\, H. H. Tan\, H. Sirringhaus\, I. Aharonovich\, and M. At
 ature\, Nat. Commun. 13\, 618 (2022).\n\n[3] S. Li and A. Gali\, J. Phys. 
 Chem. Lett. 13\, 9544 (2022).\n\n[4] S. Li\, A. Pershin\, G. Thiering\, P.
  Udvarhelyi\, and A. Gali\, J. Phys. Chem. Lett. 13\, 3150 (2022).
LOCATION:TCM Seminar Room
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