Work

Ultra-broad Schmidt modes for biphoton states generated by SPDC in the chirped QPM crystals

Year: 2024

Type: article

Abstract: In the realm of quantum optics, the manipulation and characterization of biphoton states hold significant importance for advancing quantum information processing and communication technologies. This study explores the Schmidt decomposition of ultra-broad biphoton states, revealing that most modes are fulfilled with the frequency response points, and certain modes exhibit exceptionally broad Schmidt spectra. These Schmidt modes in frequency domain are significantly reshaped and widened by a crystal at a moderate chirp-rate when pump bandwidth is about several Giga-Hertz.

Source: Journal of the European Optical Society Rapid Publications

DOI: 10.1051/jeos/2024047

Authors: Jinbao Wang, Zhan Zheng, Helin Wang, Qiang Lin

Institution: Zhejiang University of Technology

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,732

Funder: National Natural Science Foundation of China