[Joint CQSE & NCTS Seminar] Quantification of Photon Fusion for Genuine Multiphoton Quantum Correlations

Title: [Joint CQSE & NCTS Seminar] Quantification of Photon Fusion for Genuine Multiphoton Quantum Correlations
Speaker: Prof. Che-Ming Li (National Cheng Kung University)
Time: 2024/5/31 (Fri.) 14:30-15:30
Place: NCTS Physics Lecture Hall, 4F, Chee-Chun Leung Cosmology Hall, NTU
Online: https://nationaltaiwanuniversity-zbh.my.webex.com/nationaltaiwanuniversity-zbh.my/j.php?MTID=mb00e764354d74a2b322c54de4cfdf7da
 

Abstract
Fusing photon pairs creates an arena where indistinguishability can exist between two two-photon amplitudes contributing to the same joint photodetection event. This two-photon interference has been extensively utilized in creating multiphoton entanglement, from passive to scalable generation, from bulk-optical to chip-scale implementations. While significant, no experimental evidence exists that the full capability of photon fusion can be utterly quantified like a quantum entity. Herein, we demonstrate the first complete capability quantification of experimental photon fusion. Our characterization faithfully measures the whole abilities of photon fusion in the experiment to create and preserve entangled photon pairs. With the created four- and six-photon entangled states using spontaneous parametric down-conversion entanglement sources, we show that capability quantification provides a faithful assessment of interferometry for generating genuine multiphoton entanglement and Einstein-Podolsky-Rosen steering. These results reveal a practical diagnostic method to benchmark photon fusion underlying the primitive operations in general quantum photonics devices and networks.
 
Biography
Education
2008 PhD, the Institute and Department of Electrophysics, National Chiao Tung University

Research Interests
Quantum Information Science
Quantum Optics

Experience
2008/05 ~ 2009/04 Postdoctoral Research Associate, Department of Physics, National Cheng Kung University
2008/05 ~ 2010/01 Guest Scientist, Physikalisches Institut, Ruprecht-Karls Universit?t Heidelberg
2009/08 ~ 2011/07 Postdoctoral Research Scholar with Appointment, National Science Council and Department of Physics, National Cheng Kung University
2011/08 ~ 2012/07 Assistant Research Scholar, National Science Council and Department of Physics, National Cheng Kung University
2012/01 ~ 2012/02 Visiting Scientist, Institute of Physical and Chemical Research (RIKEN)
2012/02 ~ 2016/01 Assistant Professor, Department of Engineering Science, National Cheng Kung University
2016/02 ~ present Associate Professor, Department of Engineering Science, National Cheng Kung University
2017/09 ~ 2018/01 Visiting Scholar, Shanghai Branch, National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China

https://researchoutput.ncku.edu.tw/en/persons/che-ming-li

1/0