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Universality in ultradilute liquid Bose-Bose mixtures

Author
Cikojevic, V.; Leandra, V.; Astrakharchik, G.; Boronat, J.
Type of activity
Journal article
Journal
Physical review A
Date of publication
2019-02-13
Volume
99
Number
2
First page
023618-1
Last page
023618-6
DOI
10.1103/PhysRevA.99.023618
Repository
http://hdl.handle.net/2117/129994 Open in new window
URL
https://journals.aps.org/pra/abstract/10.1103/PhysRevA.99.023618 Open in new window
Abstract
We have studied dilute Bose-Bose mixtures of atoms with attractive interspecies and repulsive intraspecies interactions using quantum Monte Carlo methods at T=0. Using a number of models for interactions, we determine the range of validity of the universal equation of state of the symmetric liquid mixture as a function of two parameters: the s-wave scattering length and the effective range of the interaction potential. It is shown that the Lee-Huang-Yang correction is sufficient only for extreme...
Citation
Cikojevic, V. [et al.]. Universality in ultradilute liquid Bose-Bose mixtures. "Physical review A", 13 Febrer 2019, vol. 99, núm. 2, p. 023618-1-023618-6.
Keywords
Diffusion quantum Monte Carlo Liquids Superfluids
Group of research
SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity

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