METRICA, l’archivio istituzionale della produzione scientifica dell’Istituto Nazionale di Ricerca Metrologica, ha lo scopo di raccogliere, documentare, conservare e pubblicare, anche ad accesso aperto, i prodotti della ricerca dell’Ente.
METRICA utilizza la piattaforma IRIS (Institutional Research Information System) sviluppata da Cineca.
EnglishThe zero-temperature dynamical structure factor S(q,w) of one-dimensional hard rods is computed using state-of-the-art quantum Monte Carlo and analytic continuation techniques, complemented by a Bethe ansatz analysis. As the density increases, S(q,w) reveals a crossover from the Tonks-Girardeau gas to a quasisolid regime, along which the low-energy properties are found in agreement with the nonlinear Luttinger liquid theory. Our quantitative estimate of S(q,w) extends beyond the low-energy limit and confirms a theoretical prediction regarding the behavior of S(q,w) at specific wave vectors Qn=n2π/a, where a is the core radius, resulting from the interplay of the particle-hole boundaries of suitably rescaled ideal Fermi gases. We observe significant similarities between hard rods and one-dimensional He4 at high density, suggesting that the hard-rods model may provide an accurate description of dense one-dimensional liquids of quantum particles interacting through a strongly repulsive, finite-range potential.
Dynamical structure factor of one-dimensional hard rods / Motta, M.; Vitali, E.; Rossi, M.; Galli, D. E.; Bertaina, G.. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - 94:4(2016), p. 043627.
| Titolo: | Dynamical structure factor of one-dimensional hard rods |
| Autori: | BERTAINA, GIANLUCA (Corresponding) |
| Data di pubblicazione: | 2016 |
| Rivista: | |
| Citazione: | Dynamical structure factor of one-dimensional hard rods / Motta, M.; Vitali, E.; Rossi, M.; Galli, D. E.; Bertaina, G.. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - 94:4(2016), p. 043627. |
| Handle: | http://hdl.handle.net/11696/60825 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Motta et al_2016_Dynamical structure factor of one-dimensional hard rods.pdf | Versione editoriale | Non Pubblico - Accesso privato/ristretto | Utenti riconosciuti Richiedi una copia | |
| arxiv_Dynamical structure factor.pdf | Documento in Pre-print | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
http://hdl.handle.net/11696/60825
Copyright © 2021