{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,24]],"date-time":"2026-04-24T01:20:27Z","timestamp":1776993627986,"version":"3.51.4"},"reference-count":49,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2025,2,16]],"date-time":"2025-02-16T00:00:00Z","timestamp":1739664000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Hunan Natural Science Foundation of China project","award":["2022JJ30029"],"award-info":[{"award-number":["2022JJ30029"]}]},{"name":"Hunan Natural Science Foundation of China project","award":["2023ZJ1010"],"award-info":[{"award-number":["2023ZJ1010"]}]},{"name":"One Hundred Talents Foundation of Hunan Province","award":["2022JJ30029"],"award-info":[{"award-number":["2022JJ30029"]}]},{"name":"One Hundred Talents Foundation of Hunan Province","award":["2023ZJ1010"],"award-info":[{"award-number":["2023ZJ1010"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>We investigated Im-3m H3S at 200 GPa, a pressure regime where crystalline H3S is widely considered to be a superconductor. Simulated circularly polarized 10 femtosecond (fs) laser pulses were applied and we quantified the effects on the electron dynamics both during the application of the ultra-fast laser pulse and 5.0 fs after the pulse was switched off. In addition, the carrier-envelope phase (CEP) angle \u03d5, which quantifies the relationship between the time-varying direction of electric (E)-field and the amplitude envelope, is employed to control the time evolution of the wavefunction \u03c8(r). This is undertaken for the first application of Next Generation Quantum Theory of Atoms in Molecules (NG-QTAIM) to the solid state. Ultra-fast phenomena related to superconductivity are discovered in the form of a geometric Berry phase angle associated with the H--H bonding in addition to very high values of the chirality\u2013helicity function that correspond to values normally found in chiral molecules. Future applications are discussed, including chiral spin selective phenomena in addition to high-temperature superconductivity and organic superconductors where phonons do not play a significant role.<\/jats:p>","DOI":"10.3390\/sym17020299","type":"journal-article","created":{"date-parts":[[2025,2,17]],"date-time":"2025-02-17T07:48:22Z","timestamp":1739778502000},"page":"299","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["A Geometric Berry Phase Angle Induced in Im-3m H3S at 200 GPa by Ultra-Fast Laser Pulses"],"prefix":"10.3390","volume":"17","author":[{"given":"Genwei","family":"Hong","sequence":"first","affiliation":[{"name":"Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource, National and Local Joint Engineering Laboratory for New Petro-Chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xinjie","family":"Zhou","sequence":"additional","affiliation":[{"name":"Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource, National and Local Joint Engineering Laboratory for New Petro-Chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Huan","family":"He","sequence":"additional","affiliation":[{"name":"Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource, National and Local Joint Engineering Laboratory for New Petro-Chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tianlv","family":"Xu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource, National and Local Joint Engineering Laboratory for New Petro-Chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6647-4266","authenticated-orcid":false,"given":"Herbert","family":"Fr\u00fcchtl","sequence":"additional","affiliation":[{"name":"EaStCHEM School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7683-3293","authenticated-orcid":false,"given":"Tanja","family":"van Mourik","sequence":"additional","affiliation":[{"name":"EaStCHEM School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yaxin","family":"Zhai","sequence":"additional","affiliation":[{"name":"Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics, Hunan Normal University, Changsha 410081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0462-6962","authenticated-orcid":false,"given":"Steven R.","family":"Kirk","sequence":"additional","affiliation":[{"name":"Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource, National and Local Joint Engineering Laboratory for New Petro-Chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4288-7653","authenticated-orcid":false,"given":"Samantha","family":"Jenkins","sequence":"additional","affiliation":[{"name":"Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource, National and Local Joint Engineering Laboratory for New Petro-Chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,2,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"224507","DOI":"10.1103\/PhysRevB.110.224507","article-title":"Prediction of Enhanced Superconductivity in Cyclo-H12Bi\/Pb Involving a Resonant Hydrogen Structure","volume":"110","author":"Yu","year":"2024","journal-title":"Phys. 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