Ultrafast Decoherence of Charge Density Waves in K$_{0.3}$MoO$_{3}$
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866918312749826048 |
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| author | Winkler, Rafael T. Boie, Larissa Deng, Yunpei Savoini, Matteo Zerdane, Serhane Nag, Abhishek Gurung, Sabina Soranzio, Davide Suter, Tim Ovuka, Vladimir Zemp, Janine Abreu, Elsa Biasco, Simone Mankowsky, Roman Divall, Edwin J. Oggenfuss, Alexander R. Sander, Mathias Arrell, Christopher Babich, Danylo Lemke, Henrik T. Staub, Urs Demsar, Jure Johnson, Steven L. |
| author_facet | Winkler, Rafael T. Boie, Larissa Deng, Yunpei Savoini, Matteo Zerdane, Serhane Nag, Abhishek Gurung, Sabina Soranzio, Davide Suter, Tim Ovuka, Vladimir Zemp, Janine Abreu, Elsa Biasco, Simone Mankowsky, Roman Divall, Edwin J. Oggenfuss, Alexander R. Sander, Mathias Arrell, Christopher Babich, Danylo Lemke, Henrik T. Staub, Urs Demsar, Jure Johnson, Steven L. |
| contents | Recent works have suggested that transient suppression of a charge density wave (CDW) by an ultra-short excitation can lead to an inversion of the CDW phase. We experimentally investigate the dynamics of the CDW in K$_{0.3}$MoO$_{3}$ by time resolved x-ray diffraction after excitation with optical pulses. Our results indicate a transient inversion of the CDW phase close to the surface that evolves into a highly disordered state in less than one picosecond. Numerical simulations solving the Ginzburg-Landau equation including disorder from strong pinning defects reproduce our main observations. Our findings highlight the critical role of disorder in schemes for coherent control in condensed matter systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_21030 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Ultrafast Decoherence of Charge Density Waves in K$_{0.3}$MoO$_{3}$ Winkler, Rafael T. Boie, Larissa Deng, Yunpei Savoini, Matteo Zerdane, Serhane Nag, Abhishek Gurung, Sabina Soranzio, Davide Suter, Tim Ovuka, Vladimir Zemp, Janine Abreu, Elsa Biasco, Simone Mankowsky, Roman Divall, Edwin J. Oggenfuss, Alexander R. Sander, Mathias Arrell, Christopher Babich, Danylo Lemke, Henrik T. Staub, Urs Demsar, Jure Johnson, Steven L. Strongly Correlated Electrons Recent works have suggested that transient suppression of a charge density wave (CDW) by an ultra-short excitation can lead to an inversion of the CDW phase. We experimentally investigate the dynamics of the CDW in K$_{0.3}$MoO$_{3}$ by time resolved x-ray diffraction after excitation with optical pulses. Our results indicate a transient inversion of the CDW phase close to the surface that evolves into a highly disordered state in less than one picosecond. Numerical simulations solving the Ginzburg-Landau equation including disorder from strong pinning defects reproduce our main observations. Our findings highlight the critical role of disorder in schemes for coherent control in condensed matter systems. |
| title | Ultrafast Decoherence of Charge Density Waves in K$_{0.3}$MoO$_{3}$ |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2601.21030 |