Attosecond entangled photons from two-photon decay of metastable atoms: A source for attosecond experiments and beyond

We propose the generation of attosecond entangled biphotons in the extreme-ultraviolet regime by two-photon decay of a metastable atomic state as a source similar to spontaneous parametric down-conversion photons. The 1s2s ^{1}S_{0} metastable state in helium decays to the ground state by the emissi...

Full description

Bibliographic Details
Main Authors: Yimeng Wang, Siddhant Pandey, Chris H. Greene, Niranjan Shivaram
Format: Article
Language:English
Published: American Physical Society 2022-09-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.4.L032038