Generation of entanglement using a short-wavelength seeded free-electron laser
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866910416509075456 |
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| author | Nandi, Saikat Stenquist, Axel Papoulia, Asimina Olofsson, Edvin Badano, Laura Bertolino, Mattias Busto, David Callegari, Carlo Carlström, Stefanos Danailov, Miltcho B. Demekhin, Philipp V. Di Fraia, Michele Eng-Johnsson, Per Feifel, Raimund Gallician, Guillaume Giannessi, Luca Gisselbrecht, Mathieu Manfredda, Michele Meyer, Michael Miron, Catalin Peschel, Jasper Plekan, Oksana Prince, Kevin C. Squibb, Richard J. Zangrando, Marco Zapata, Felipe Zhong, Shiyang Dahlström, Jan Marcus |
| author_facet | Nandi, Saikat Stenquist, Axel Papoulia, Asimina Olofsson, Edvin Badano, Laura Bertolino, Mattias Busto, David Callegari, Carlo Carlström, Stefanos Danailov, Miltcho B. Demekhin, Philipp V. Di Fraia, Michele Eng-Johnsson, Per Feifel, Raimund Gallician, Guillaume Giannessi, Luca Gisselbrecht, Mathieu Manfredda, Michele Meyer, Michael Miron, Catalin Peschel, Jasper Plekan, Oksana Prince, Kevin C. Squibb, Richard J. Zangrando, Marco Zapata, Felipe Zhong, Shiyang Dahlström, Jan Marcus |
| contents | Quantum entanglement between the degrees of freedom encountered in the classical world is challenging to observe due to the surrounding environment. To elucidate this issue, we investigate the entanglement generated over ultrafast timescales in a bipartite quantum system comprising two massive particles: a free-moving photoelectron, which expands to a mesoscopic length-scale, and a light-dressed atomic ion, which represents a hybrid state of light and matter. Although the photoelectron spectra are measured classically, the entanglement allows us to reveal information about the dressed-state dynamics of the ion and the femtosecond extreme ultraviolet pulses delivered by a seeded free-electron laser. The observed generation of entanglement is interpreted using the time-dependent von Neumann entropy. Our results unveil the potential for using short-wavelength coherent light pulses from free-electron lasers to generate entangled photoelectron and ion systems for studying spooky action at a distance. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_04442 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Generation of entanglement using a short-wavelength seeded free-electron laser Nandi, Saikat Stenquist, Axel Papoulia, Asimina Olofsson, Edvin Badano, Laura Bertolino, Mattias Busto, David Callegari, Carlo Carlström, Stefanos Danailov, Miltcho B. Demekhin, Philipp V. Di Fraia, Michele Eng-Johnsson, Per Feifel, Raimund Gallician, Guillaume Giannessi, Luca Gisselbrecht, Mathieu Manfredda, Michele Meyer, Michael Miron, Catalin Peschel, Jasper Plekan, Oksana Prince, Kevin C. Squibb, Richard J. Zangrando, Marco Zapata, Felipe Zhong, Shiyang Dahlström, Jan Marcus Quantum Physics Quantum entanglement between the degrees of freedom encountered in the classical world is challenging to observe due to the surrounding environment. To elucidate this issue, we investigate the entanglement generated over ultrafast timescales in a bipartite quantum system comprising two massive particles: a free-moving photoelectron, which expands to a mesoscopic length-scale, and a light-dressed atomic ion, which represents a hybrid state of light and matter. Although the photoelectron spectra are measured classically, the entanglement allows us to reveal information about the dressed-state dynamics of the ion and the femtosecond extreme ultraviolet pulses delivered by a seeded free-electron laser. The observed generation of entanglement is interpreted using the time-dependent von Neumann entropy. Our results unveil the potential for using short-wavelength coherent light pulses from free-electron lasers to generate entangled photoelectron and ion systems for studying spooky action at a distance. |
| title | Generation of entanglement using a short-wavelength seeded free-electron laser |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2312.04442 |