A geometric Berry phase angle induced in Im-3m H3S at 200 GPa by ultra-fast laser pulses

Genwei Hong; Xinjie Zhou; Huan He; Tianlv Xu; Herbert Früchtl; Tanja van Mourik; Yaxin Zhai; Steven R. Kirk; Samantha Jenkins

doi:10.3390/sym17020299

A geometric Berry phase angle induced in Im-3m H₃S at 200 GPa by ultra-fast laser pulses

Genwei Hong, Xinjie Zhou, Huan He, Tianlv Xu, Herbert Früchtl, Tanja van Mourik, Yaxin Zhai, Steven R. Kirk, Samantha Jenkins^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

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 ϕ, 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 ψ(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–helicity 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.

Original language	English
Article number	299
Number of pages	18
Journal	Symmetry
Volume	17
Issue number	2
DOIs	https://doi.org/10.3390/sym17020299
Publication status	Published - 16 Feb 2025

Keywords

NG-QTAIM
Im-3m H3S
Geometric Berry phase
Circularly polarized ultra-fast laser
Carrier-envelope phase angle

Access to Document

10.3390/sym17020299Licence: CC BY

Hong-2025-A-geometric-Berry-phase-Symmetry-17-299-CCBY
Copyright: © 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Final published version, 3.37 MBLicence: CC BY

Cite this

@article{43f61b00d5d14c5fa7a41390d224a765,

title = "A geometric Berry phase angle induced in Im-3m H3S at 200 GPa by ultra-fast laser pulses",

abstract = "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 ϕ, 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 ψ(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–helicity 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.",

keywords = "NG-QTAIM, Im-3m H3S, Geometric Berry phase, Circularly polarized ultra-fast laser, Carrier-envelope phase angle",

author = "Genwei Hong and Xinjie Zhou and Huan He and Tianlv Xu and Herbert Fr{\"u}chtl and {van Mourik}, Tanja and Yaxin Zhai and Kirk, {Steven R.} and Samantha Jenkins",

note = "Funding: The Hunan Natural Science Foundation of China project, approval number: 2022JJ30029 and 2023ZJ1010, is gratefully acknowledged. The One Hundred Talents Foundation of Hunan Province is also gratefully acknowledged for the support of S.J. and S.R.K.",

year = "2025",

month = feb,

day = "16",

doi = "10.3390/sym17020299",

language = "English",

volume = "17",

journal = "Symmetry",

issn = "2073-8994",

publisher = "MDPI",

number = "2",

}

TY - JOUR

T1 - A geometric Berry phase angle induced in Im-3m H3S at 200 GPa by ultra-fast laser pulses

AU - Hong, Genwei

AU - Zhou, Xinjie

AU - He, Huan

AU - Xu, Tianlv

AU - Früchtl, Herbert

AU - van Mourik, Tanja

AU - Zhai, Yaxin

AU - Kirk, Steven R.

AU - Jenkins, Samantha

N1 - Funding: The Hunan Natural Science Foundation of China project, approval number: 2022JJ30029 and 2023ZJ1010, is gratefully acknowledged. The One Hundred Talents Foundation of Hunan Province is also gratefully acknowledged for the support of S.J. and S.R.K.

PY - 2025/2/16

Y1 - 2025/2/16

N2 - 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 ϕ, 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 ψ(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–helicity 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.

AB - 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 ϕ, 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 ψ(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–helicity 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.

KW - NG-QTAIM

KW - Im-3m H3S

KW - Geometric Berry phase

KW - Circularly polarized ultra-fast laser

KW - Carrier-envelope phase angle

U2 - 10.3390/sym17020299

DO - 10.3390/sym17020299

M3 - Article

SN - 2073-8994

VL - 17

JO - Symmetry

JF - Symmetry

IS - 2

M1 - 299

ER -