학술논문
Assembly and coherent control of a register of nuclear spin qubits
Document Type
Working Paper
Author
Barnes, Katrina; Battaglino, Peter; Bloom, Benjamin J.; Cassella, Kayleigh; Coxe, Robin; Crisosto, Nicole; King, Jonathan P.; Kondov, Stanimir S.; Kotru, Krish; Larsen, Stuart C.; Lauigan, Joseph; Lester, Brian J.; McDonald, Mickey; Megidish, Eli; Narayanaswami, Sandeep; Nishiguchi, Ciro; Notermans, Remy; Peng, Lucas S.; Ryou, Albert; Wu, Tsung-Yao; Yarwood, Michael
Source
Subject
Language
Abstract
We introduce an optical tweezer platform for assembling and individually manipulating a two-dimensional register of nuclear spin qubits. Each nuclear spin qubit is encoded in the ground $^{1}S_{0}$ manifold of $^{87}$Sr and is individually manipulated by site-selective addressing beams. We observe that spin relaxation is negligible after 5 seconds, indicating that $T_1\gg5$ s. Furthermore, utilizing simultaneous manipulation of subsets of qubits, we demonstrate significant phase coherence over the entire register, estimating $T_2^\star = \left(21\pm7\right)$ s and measuring $T_2^\text{echo}=\left(42\pm6\right)$ s.
Comment: 10 pages, 4 figures
Comment: 10 pages, 4 figures