Luttinger-liquid behavior of one-dimensional He-3
The ground-state properties of one-dimensional He-3 are studied using quantum Monte Carlo methods. The equation of state is calculated in a wide range of physically relevant densities and is well interpolated by a power-series fit. The Luttinger liquid theory is found to describe the long-range prop...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/26200 |
| Acceso en línea: | https://hdl.handle.net/2117/26200 https://dx.doi.org/10.1103/PhysRevB.90.235439 |
| Access Level: | acceso abierto |
| Palabra clave: | Electron gas Monte Carlo method Bose-Einstein gas Luttinger liquids Ground-state Electron-gas Anderson localization Single-barrier Quantum fluids Monte-Carlo Bose-gas Transport Crystal Systems Montecarlo, Mètode de Condensació de Bose-Einstein Àrees temàtiques de la UPC::Física |
| Sumario: | The ground-state properties of one-dimensional He-3 are studied using quantum Monte Carlo methods. The equation of state is calculated in a wide range of physically relevant densities and is well interpolated by a power-series fit. The Luttinger liquid theory is found to describe the long-range properties of the correlation functions. The density dependence of the Luttinger parameter is explicitly found, and interestingly it shows a nonmonotonic behavior. Depending on the density, the static structure factor can be a smooth function of the momentum or might contain a peak of a finite or infinite height. Although no phase transitions are present in the system, we identify a number of physically different regimes, including an ideal Fermi gas, a |
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