TY - JOUR
T1 - Hyperfine Spectroscopy of Isotopically Engineered Group-IV Color Centers in Diamond
AU - Harris, Isaac B.W.
AU - Michaels, Cathryn P.
AU - Chen, Kevin C.
AU - Parker, Ryan A.
AU - Titze, Michael
AU - Arjona Martínez, Jesús
AU - Sutula, Madison
AU - Christen, Ian R.
AU - Stramma, Alexander M.
AU - Roth, William
AU - Purser, Carola M.
AU - Appel, Martin Hayhurst
AU - Li, Chao
AU - Trusheim, Matthew E.
AU - Palmer, Nicola L.
AU - Markham, Matthew L.
AU - Bielejec, Edward S.
AU - Atatüre, Mete
AU - Englund, Dirk
PY - 2023/10/1
Y1 - 2023/10/1
N2 - A quantum register coupled to a spin-photon interface is a key component in quantum communication and information processing. Group-IV color centers in diamond (SiV-, GeV-, and SnV-) are promising candidates for this application, comprising an electronic spin with optical transitions coupled to a nuclear spin as the quantum register. However, the creation of a quantum register for these color centers with deterministic and strong coupling to the spin-photon interface remains challenging. Here, we make first-principles predictions of the hyperfine parameters of the group-IV color centers, which we verify experimentally with a comprehensive comparison between the spectra of spin active and spin neutral intrinsic dopant nuclei in single GeV- and SnV- emitters. In line with the theoretical predictions, detailed spectroscopy on large sample sizes reveals that hyperfine coupling causes a splitting of the optical transition of SnV- an order of magnitude larger than the optical line width and provides a magnetic field insensitive transition. This strong coupling provides access to a new regime for quantum registers in diamond color centers, opening avenues for novel spin-photon entanglement and quantum sensing schemes for these well-studied emitters.
AB - A quantum register coupled to a spin-photon interface is a key component in quantum communication and information processing. Group-IV color centers in diamond (SiV-, GeV-, and SnV-) are promising candidates for this application, comprising an electronic spin with optical transitions coupled to a nuclear spin as the quantum register. However, the creation of a quantum register for these color centers with deterministic and strong coupling to the spin-photon interface remains challenging. Here, we make first-principles predictions of the hyperfine parameters of the group-IV color centers, which we verify experimentally with a comprehensive comparison between the spectra of spin active and spin neutral intrinsic dopant nuclei in single GeV- and SnV- emitters. In line with the theoretical predictions, detailed spectroscopy on large sample sizes reveals that hyperfine coupling causes a splitting of the optical transition of SnV- an order of magnitude larger than the optical line width and provides a magnetic field insensitive transition. This strong coupling provides access to a new regime for quantum registers in diamond color centers, opening avenues for novel spin-photon entanglement and quantum sensing schemes for these well-studied emitters.
UR - http://www.scopus.com/inward/record.url?scp=85174154262&partnerID=8YFLogxK
U2 - 10.1103/PRXQuantum.4.040301
DO - 10.1103/PRXQuantum.4.040301
M3 - Article
SN - 2691-3399
VL - 4
JO - PRX Quantum
JF - PRX Quantum
IS - 4
ER -