Towards a quantum fluid theory of correlated many-fermion systems from first principles
Correlated many-fermion systems emerge in a broad range of phenomena in warm dense matter, plasmonics, and ultracold atoms. Quantum hydrodynamics (QHD) complements first-principles methods for many-fermion systems at larger scales. We illustrate the failure of the standard Bohm potential central to...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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SciPost
2022
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| _version_ | 1797110300882763776 |
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| author | Moldabekov, Z Dornheim Gregori, G |
| author_facet | Moldabekov, Z Dornheim Gregori, G |
| author_sort | Moldabekov, Z |
| collection | OXFORD |
| description | Correlated many-fermion systems emerge in a broad range of phenomena in warm dense matter, plasmonics, and ultracold atoms. Quantum hydrodynamics (QHD) complements first-principles methods for many-fermion systems at larger scales. We illustrate the failure of the standard Bohm potential central to QHD for strong perturbations when the density perturbation is larger than about 10<sup>−3</sup> of the mean density. We then extend QHD to this regime via the \emph{many-fermion Bohm potential} from first-principles. This may lead to more accurate QHD simulations beyond their common application domain in the presence of strong perturbations at scales unattainable with first-principles methods. |
| first_indexed | 2024-03-07T07:53:02Z |
| format | Journal article |
| id | oxford-uuid:6c114a62-5d73-4479-8a22-9abe0e9cf41f |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:53:02Z |
| publishDate | 2022 |
| publisher | SciPost |
| record_format | dspace |
| spelling | oxford-uuid:6c114a62-5d73-4479-8a22-9abe0e9cf41f2023-08-04T12:05:24ZTowards a quantum fluid theory of correlated many-fermion systems from first principlesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6c114a62-5d73-4479-8a22-9abe0e9cf41fEnglishSymplectic ElementsSciPost2022Moldabekov, ZDornheimGregori, GCorrelated many-fermion systems emerge in a broad range of phenomena in warm dense matter, plasmonics, and ultracold atoms. Quantum hydrodynamics (QHD) complements first-principles methods for many-fermion systems at larger scales. We illustrate the failure of the standard Bohm potential central to QHD for strong perturbations when the density perturbation is larger than about 10<sup>−3</sup> of the mean density. We then extend QHD to this regime via the \emph{many-fermion Bohm potential} from first-principles. This may lead to more accurate QHD simulations beyond their common application domain in the presence of strong perturbations at scales unattainable with first-principles methods. |
| spellingShingle | Moldabekov, Z Dornheim Gregori, G Towards a quantum fluid theory of correlated many-fermion systems from first principles |
| title | Towards a quantum fluid theory of correlated many-fermion systems from first principles |
| title_full | Towards a quantum fluid theory of correlated many-fermion systems from first principles |
| title_fullStr | Towards a quantum fluid theory of correlated many-fermion systems from first principles |
| title_full_unstemmed | Towards a quantum fluid theory of correlated many-fermion systems from first principles |
| title_short | Towards a quantum fluid theory of correlated many-fermion systems from first principles |
| title_sort | towards a quantum fluid theory of correlated many fermion systems from first principles |
| work_keys_str_mv | AT moldabekovz towardsaquantumfluidtheoryofcorrelatedmanyfermionsystemsfromfirstprinciples AT dornheim towardsaquantumfluidtheoryofcorrelatedmanyfermionsystemsfromfirstprinciples AT gregorig towardsaquantumfluidtheoryofcorrelatedmanyfermionsystemsfromfirstprinciples |