Lead-related quantum emitters in diamond

被引：90

作者：

Trusheim, Matthew E. ^{[1
]}

Wan, Noel H. ^{[1
]}

Chen, Kevin C. ^{[1
]}

Ciccarino, Christopher J. ^{[2
,3
]}

Flick, Johannes ^{[2
]}

Sundararaman, Ravishankar ^{[4
]}

Malladi, Girish ^{[5
]}

Bersin, Eric ^{[1
]}

Walsh, Michael ^{[1
]}

Lienhard, Benjamin ^{[1
]}

Bakhru, Hassaram ^{[5
]}

Narang, Prineha ^{[2
]}

Englund, Dirk ^{[1
]}

机构：

[1] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[2] Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[3] Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA

[4] Rensselaer Polytech Inst, Dept Mat Sci & Engn, Troy, NY 12180 USA

[5] State Univ New York Polytech Inst, Coll Nanoscale Sci & Engn, 257 Fuller Rd, New York, NY 12203 USA

来源：

PHYSICAL REVIEW B | 2019年 / 99卷 / 07期

关键词：

ENTANGLEMENT;

D O I：

10.1103/PhysRevB.99.075430

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on quantum emission from Pb-related color centers in diamond following ion implantation and high-temperature vacuum annealing. First-principles calculations predict a negatively charged Pb-vacancy (PbV) center in a split-vacancy configuration, with a zero-phonon transition around 2.4 eV. Cryogenic photoluminescence measurements performed on emitters in nanofabricated pillars reveal several transitions, including a prominent doublet near 520 nm. The splitting of this doublet, 5.7 THz, exceeds that reported for other group-IV centers. These observations are consistent with the PbV center, which is expected to have a combination of narrow optical transitions and stable spin states, making it a promising system for quantum network nodes.

引用

页数：7

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