新科学想法 › 文献管理 › 浏览文献

Experimental challenges for high-mass matter-wave interference with nanoparticles

zqyin 添加于 2023-1-27 17:17 | 645 次阅读 | 0 个评论

作者
Pedalino S, Galindo BR, Sousa T de, Fein YY, Geyer P, Gerlich S, Arndt M
摘要
We discuss recent advances towards matter-wave interference experiments with free beams of metallic and dielectric nanoparticles. They require a brilliant source, an efficient detection scheme and a coherent method to divide the de Broglie waves associated with these clusters: We describe an approach based on a magnetron sputtering source which ejects an intense cluster beam with a wide mass dispersion but a small velocity spread of 10%. The source is universal as it can be used with all conducting and many semiconducting or even insulating materials. Here we focus on metals and dielectrics with a low work function of the bulk and thus a low cluster ionization energy. This allows us to realize photoionization gratings as coherent matter-wave beam splitters and also to realize an efficient ionization detection scheme. These new methods are now combined in an upgraded Talbot-Lau interferometer with three 266 nm depletion gratings. We here describe the experimental boundary conditions and how to realize them in the lab. This next generation of near-field interferometers shall allow us to soon push the limits of matter-wave interference to masses up to 10 megadaltons.
详细资料
- 关键词: quant-ph
- 文献种类:手稿
- 期卷页: 2023年
- 日期: 2023-01-26
- 发布方式: arXiv e-prints
- 备注:http://arxiv.org/abs/2301.11095v1
相关链接 URL