Hamiltonian non-Hermicity: Accurate dynamics with the multiple Davydov D2<i>Ansätze</i>
We examine the applicability of the numerically accurate method of time dependent variation with multiple Davydov Ansätze (mDA) to non-Hermitian systems. As illustrative examples, three systems of interest have been studied, a non-Hermitian system of dissipative Landau-Zener transitions, a non-Hermitian multimode Jaynes-Cummings model, and a dissipative Holstein-Tavis-Cummings model, all of which are shown to be effectively described by the mDA method. Our findings highlight the versatility of the mDA as a powerful numerical tool for investigating complex many-body non-Hermitian systems, which can be extended to explore diverse phenomena such as skin effects, excited-state dynamics, and spectral topology in the non-Hermitian field.
Authors
- Maxim F. Gelin (ORCID: https://orcid.org/0000-0003-3092-3343)
- Yiying Yan (ORCID: https://orcid.org/0000-0003-4396-7265)
- Kaijun Shen (ORCID: https://orcid.org/0000-0003-0272-6262)
- Yang Zhao (ORCID: https://orcid.org/0000-0002-7916-8687)
- Lixing Zhang (ORCID: https://orcid.org/0009-0002-4157-736X)
- Kewei Sun (ORCID: https://orcid.org/0000-0003-1542-8352)
Institutions
- University of California, Los Angeles (US)
- Zhejiang University of Science and Technology (CN)
- Nanyang Technological University (SG)
- Hangzhou Dianzi University (CN)
Publication Details
- Journal
- The Journal of Chemical Physics
- Published
- 2024-11-19
- DOI
- https://doi.org/10.1063/5.0243861
- Citations
- 7
- Primary Topic
- Quantum Mechanics and Non-Hermitian Physics
- Type
- article
- Field-Weighted Citation Impact
- 2.36
Funders
- Ministry of Education - Singapore
- National Natural Science Foundation of China
- National Natural Science Foundation of China - State Grid Corporation Joint Fund for Smart Grid