Open AccessHigh-powered optical superlattice with robust phase stability for quantum gas microscopy
Author(s) -
Meng-Da Li,
Wan Lin,
An Luo,
Weiyong Zhang,
Hui Sun,
Bo Xiao,
Yong-Guang Zheng,
Zhen-Sheng Yuan,
Jian-Wei Pan
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.423776
Subject(s) - superlattice , optical lattice , quantum computer , physics , microscope , optics , quantum , lattice (music) , quantum optics , ultracold atom , quantum simulator , interferometry , materials science , optoelectronics , condensed matter physics , quantum mechanics , superfluidity , acoustics
Optical superlattice has a wide range of applications in the study of ultracold atom physics. Especially, it can be used to trap and manipulate thousands of atom pairs in parallel which constitutes a promising system for quantum simulation and quantum computation. In the present work, we report on a high-power optical superlattice formed by a 532-nm and 1064-nm dual-wavelength interferometer with a short lattice spacing of 630 nm. The short-term fluctuation (in 10 seconds) of the relative phase between the short lattice and the long lattice is measured to be 0.003π, which satisfies the needs for performing two-qubit gates among neighboring lattice sites. We further implement this superlattice in a 87 Rb experiment with a quantum gas microscope of single-site resolution, where the high-power 532-nm laser is necessary for pinning atoms in the short lattice during imaging, providing a unique platform for engineering quantum states.