Isolating the classical and quantum coherence of a multiphoton system

Chenglong You; Mingyuan Hong; Fatemeh Mostafavi; Jannatul Ferdous; Roberto de J. León-Montiel; Riley B. Dawkins; Omar S. Magaña-Loaiza

doi:10.1186/s43074-024-00153-4

Isolating the classical and quantum coherence of a multiphoton system

doi: 10.1186/s43074-024-00153-4

基金项目:

C. Y., F.M., J. F., and O. S. M. L. acknowledge support from the Army Research Office (ARO), through the Early Career Program (ECP) under the grant no. W911NF-22-1-0088. M. H. and O. S. M. L. thank the U.S. Department of Energy (DOE), Office of Science (SC), for supporting this research through the Program of Nuclear Physics under the NP-QIS grant: DE-SC0023694. Also, R. B. D. and O. S. M. L. acknowledge funding from the National Science Foundation through Grant No. OMA 2231387. R.J.L.-M. thankfully acknowledges financial support by DGAPA-UNAM under the project UNAM-PAPIIT IN101623.

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出版历程
- 收稿日期: 2024-08-27
- 录用日期: 2024-11-20
- 修回日期: 2024-11-10
- 网络出版日期: 2024-11-27

Isolating the classical and quantum coherence of a multiphoton system

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Quantum Photonics Laboratory, Department of Physics & Astronomy, Baton Rouge, 70803, LA, USA
2.
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Apartado Postal 70-543, 04510, Ciudad de México, México

Funds:

摘要

摘要: The classical properties of thermal light fields were instrumental in shaping our early understanding of light. Before the invention of the laser, thermal light was used to investigate the wave-particle duality of light. The subsequent formulation of the quantum theory of electromagnetic radiation later confirmed the classical nature of thermal light fields. Here, we fragment a pseudothermal field into its multiparticle constituents to demonstrate that it can host multiphoton dynamics mediated by either classical or quantum properties of coherence. This is shown in a forty-particle system through a process of scattering mediated by twisted paths endowed with orbital angular momentum. This platform enables accurate projections of the scattered pseudothermal system into isolated multiphoton subsystems governed by quantum dynamics. Interestingly, the isolated multiphoton subsystems exhibiting quantum coherence produce interference patterns previously attributed to entangled optical systems. As such, our work unveils novel mechanisms to isolate quantum systems from classical fields. This possibility opens new paradigms in quantum physics with enormous implications for the development of robust quantum technologies.
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Abstract: The classical properties of thermal light fields were instrumental in shaping our early understanding of light. Before the invention of the laser, thermal light was used to investigate the wave-particle duality of light. The subsequent formulation of the quantum theory of electromagnetic radiation later confirmed the classical nature of thermal light fields. Here, we fragment a pseudothermal field into its multiparticle constituents to demonstrate that it can host multiphoton dynamics mediated by either classical or quantum properties of coherence. This is shown in a forty-particle system through a process of scattering mediated by twisted paths endowed with orbital angular momentum. This platform enables accurate projections of the scattered pseudothermal system into isolated multiphoton subsystems governed by quantum dynamics. Interestingly, the isolated multiphoton subsystems exhibiting quantum coherence produce interference patterns previously attributed to entangled optical systems. As such, our work unveils novel mechanisms to isolate quantum systems from classical fields. This possibility opens new paradigms in quantum physics with enormous implications for the development of robust quantum technologies.

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