Cavity-Enhanced Optical Readout of a Single Solid-State Spin
Cavity-Enhanced Optical Readout of a Single Solid-State Spin
复制标题
单固态自旋的腔增强光学读出
DOI:
10.1103/physrevapplied.9.054013
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发表时间:
2017
影响因子:
4.6
通讯作者:
E. Waks
中科院分区:
文献类型:
--
作者:
Shuo Sun;Hyochul Kim;G. Solomon;E. Waks
We demonstrate optical readout of a single electron spin using cavity quantum electrodynamics. The spin is trapped in a single quantum dot that is strongly coupled to a nanophotonic cavity. Selectively coupling one of the optical transitions of the quantum dot to the cavity mode results in a spin-dependent cavity reflectivity that enables projective spin measurements by monitoring the reflected intensity of an incident optical field. Using this approach, we demonstrate spin readout fidelity of 0.61 for a quantum dot that has a poor branching ratio of 0.43. Achieving this fidelity using resonance fluorescence from a bare dot would require 43 times improvement in photon collection efficiency.
影响因子:
3.7
作者:
Rogers, Lachlan J.;Jahnke, Kay D.;Jelezko, Fedor
通讯作者:
Jelezko, Fedor
影响因子:
3.7
作者:
Lu, C. -Y.;Zhao, Y.;Atatuere, M.
通讯作者:
Atatuere, M.
影响因子:
64.8
作者:
Vamivakas, A. N.;Lu, C. -Y.;Atatuere, M.
通讯作者:
Atatuere, M.