Logo del repository
  1. Home
 
Opzioni

Universal Properties of Anisotropic Dipolar Bosons in Two Dimensions

J. Sánchez-Baena
•
L. A. Ardila
•
G. Astrakharchik
•
F. Mazzanti
2022
  • journal article

Periodico
SCIPOST PHYSICS
Abstract
The energy of ultra-dilute quantum many-body systems is known to exhibit a universal dependence on the gas parameter x = na_{0}^d , with n the density, d the dimensionality of the space (d = 1,2,3) and a0 the s-wave scattering length. The universal regime typically extends up to x ≈ 0.001, while at larger values specific details of the interaction start to be relevant and different model potentials lead to different results. Dipolar systems are peculiar in this regard since the anisotropy of the interaction makes a0 depend on the polarization angle α, so different combinations of n and α can lead to the same value of the gas parameter x. In this work we analyze the scaling properties of dipolar bosons in two dimensions as a function of the density and polarization dependent scattering length up to very large gas parameter values. Using Quantum Monte Carlo (QMC) methods we study the energy and the main structural and coherence properties of the ground state of a gas of dipolar bosons by varying the density and scattering length for a fixed gas parameter. We find that the dipolar interaction shows relevant scaling laws up to unusually large values of x that hold almost to the boundaries in the phase diagram where a transition to a stripe phase takes place.
DOI
10.21468/SciPostPhys.13.2.031
WOS
WOS:000863121000004
Archivio
https://hdl.handle.net/11368/3097287
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85138771135
https://scipost.org/SciPostPhys.13.2.031
Diritti
open access
license:creative commons
license uri:http://creativecommons.org/licenses/by/4.0/
FVG url
https://arts.units.it/bitstream/11368/3097287/1/SciPostPhys_13_2_031.pdf
Soggetti
  • Dipolar

  • Low dimension

  • Universality

  • Quantum Monte Carlo

google-scholar
Get Involved!
  • Source Code
  • Documentation
  • Slack Channel
Make it your own

DSpace-CRIS can be extensively configured to meet your needs. Decide which information need to be collected and available with fine-grained security. Start updating the theme to match your nstitution's web identity.

Need professional help?

The original creators of DSpace-CRIS at 4Science can take your project to the next level, get in touch!

Realizzato con Software DSpace-CRIS - Estensione mantenuta e ottimizzata da 4Science

  • Impostazioni dei cookie
  • Informativa sulla privacy
  • Accordo con l'utente finale
  • Invia il tuo Feedback