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| Format: | Preprint |
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2025
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| Online-Zugang: | https://arxiv.org/abs/2509.10107 |
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| _version_ | 1866909015131291648 |
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| author | Bespalov, Dmitrii S. Zastrau, Ulf Moldabekov, Zhandos A. Gawne, Thomas Dornheim, Tobias Meshhal, Moyassar Amouretti, Alexis Andrzejewski, Michal Appel, Karen Baehtz, Carsten Brambrink, Erik Buakor, Khachiwan Camarda, Carolina Chin, David Collins, Gilbert Crépeisson, Céline Descamps, Adrien Eggert, Jon Fletcher, Luke Forte, Alessandro Gregori, Gianluca Harmand, Marion Humphries, Oliver S. Höppner, Hauke Kuhlke, Jonas Lynn, William Lütgert, Julian Masruri, Masruri McBride, Emma M. McWilliams, Ryan Stewart Mora, Alan Augusto Sanjuan Naedler, Jean-Paul Neumayer, Paul Palmer, Charlotte Pelka, Alexander Pennacchioni, Lea Prestwood, Calum Pukhareva, Natalia A. Qu, Chongbing Ranjan, Divyanshu Redmer, Ronald Roper, Michael Sahle, Christoph Schumacher, Samuel Schwinkendorf, Jan-Patrick Sieber, Melanie J. Singleton, Madison Smith, Ethan Sternemann, Christian Stevens, Thomas Stevenson, Michael Strohm, Cornelius Tang, Minxue Toncian, Monika Toncian, Toma Tschentscher, Thomas Vinko, Sam M. Wark, Justin S. Wilke, Max Kraus, Dominik Preston, Thomas R. |
| author_facet | Bespalov, Dmitrii S. Zastrau, Ulf Moldabekov, Zhandos A. Gawne, Thomas Dornheim, Tobias Meshhal, Moyassar Amouretti, Alexis Andrzejewski, Michal Appel, Karen Baehtz, Carsten Brambrink, Erik Buakor, Khachiwan Camarda, Carolina Chin, David Collins, Gilbert Crépeisson, Céline Descamps, Adrien Eggert, Jon Fletcher, Luke Forte, Alessandro Gregori, Gianluca Harmand, Marion Humphries, Oliver S. Höppner, Hauke Kuhlke, Jonas Lynn, William Lütgert, Julian Masruri, Masruri McBride, Emma M. McWilliams, Ryan Stewart Mora, Alan Augusto Sanjuan Naedler, Jean-Paul Neumayer, Paul Palmer, Charlotte Pelka, Alexander Pennacchioni, Lea Prestwood, Calum Pukhareva, Natalia A. Qu, Chongbing Ranjan, Divyanshu Redmer, Ronald Roper, Michael Sahle, Christoph Schumacher, Samuel Schwinkendorf, Jan-Patrick Sieber, Melanie J. Singleton, Madison Smith, Ethan Sternemann, Christian Stevens, Thomas Stevenson, Michael Strohm, Cornelius Tang, Minxue Toncian, Monika Toncian, Toma Tschentscher, Thomas Vinko, Sam M. Wark, Justin S. Wilke, Max Kraus, Dominik Preston, Thomas R. |
| contents | The robust diagnosis of conditions generated in warm dense matter (WDM) experiments remains a persistent challenge. Here we describe the measurement of shock-compressed aluminium at 50 GPa with angle-resolved femtosecond x-ray Thomson scattering (XRTS) over a wide range of scattering wavevectors at the European XFEL. The measured plasmon dispersion and line shape show that the de facto standard approach for analysing XRTS spectra, based on uniform-electron-gas models, systematically overestimates the resonance energy by up to 8 eV. We present an ab initio approach that agrees within the experimental uncertainty and demonstrates that accounting for shock-induced disorder is critical for interpreting shock-compressed systems, providing evidence that ab initio treatments are required for reliable XRTS inference in warm dense aluminium. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_10107 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A Momentum-Resolved X-ray Thomson Scattering Benchmark of Electronic-Response Models in Warm Dense Aluminium Bespalov, Dmitrii S. Zastrau, Ulf Moldabekov, Zhandos A. Gawne, Thomas Dornheim, Tobias Meshhal, Moyassar Amouretti, Alexis Andrzejewski, Michal Appel, Karen Baehtz, Carsten Brambrink, Erik Buakor, Khachiwan Camarda, Carolina Chin, David Collins, Gilbert Crépeisson, Céline Descamps, Adrien Eggert, Jon Fletcher, Luke Forte, Alessandro Gregori, Gianluca Harmand, Marion Humphries, Oliver S. Höppner, Hauke Kuhlke, Jonas Lynn, William Lütgert, Julian Masruri, Masruri McBride, Emma M. McWilliams, Ryan Stewart Mora, Alan Augusto Sanjuan Naedler, Jean-Paul Neumayer, Paul Palmer, Charlotte Pelka, Alexander Pennacchioni, Lea Prestwood, Calum Pukhareva, Natalia A. Qu, Chongbing Ranjan, Divyanshu Redmer, Ronald Roper, Michael Sahle, Christoph Schumacher, Samuel Schwinkendorf, Jan-Patrick Sieber, Melanie J. Singleton, Madison Smith, Ethan Sternemann, Christian Stevens, Thomas Stevenson, Michael Strohm, Cornelius Tang, Minxue Toncian, Monika Toncian, Toma Tschentscher, Thomas Vinko, Sam M. Wark, Justin S. Wilke, Max Kraus, Dominik Preston, Thomas R. Plasma Physics Strongly Correlated Electrons The robust diagnosis of conditions generated in warm dense matter (WDM) experiments remains a persistent challenge. Here we describe the measurement of shock-compressed aluminium at 50 GPa with angle-resolved femtosecond x-ray Thomson scattering (XRTS) over a wide range of scattering wavevectors at the European XFEL. The measured plasmon dispersion and line shape show that the de facto standard approach for analysing XRTS spectra, based on uniform-electron-gas models, systematically overestimates the resonance energy by up to 8 eV. We present an ab initio approach that agrees within the experimental uncertainty and demonstrates that accounting for shock-induced disorder is critical for interpreting shock-compressed systems, providing evidence that ab initio treatments are required for reliable XRTS inference in warm dense aluminium. |
| title | A Momentum-Resolved X-ray Thomson Scattering Benchmark of Electronic-Response Models in Warm Dense Aluminium |
| topic | Plasma Physics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2509.10107 |