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Single-particle versus pair superfluidity in a bilayer system of dipolar bosons

Author
Macia, A.; Astrakharchik, G.; Mazzanti, F.; Giorgini, Stefano; Boronat, J.
Type of activity
Journal article
Journal
Physical review A
Date of publication
2014-10-21
Volume
90
Number
4
First page
1
Last page
5
DOI
https://doi.org/10.1103/PhysRevA.90.043623 Open in new window
Project funding
Fluidos y sólidos cuánticos fuertamente correlacionados (FIS2011-25275)
GRUP DE SIMULACIO PER ORDINADOR EN MATERIA CONDENSADA
Repository
http://hdl.handle.net/2117/24769 Open in new window
URL
http://journals.aps.org/pra/pdf/10.1103/PhysRevA.90.043623 Open in new window
Abstract
We consider the ground state of a bilayer system of dipolar bosons, where dipoles are oriented by an external field in the direction perpendicular to the parallel planes. Quantum Monte Carlo methods are used to calculate the ground-state energy, the one-body and two-body density matrix, and the superfluid response as a function of the separation between layers. We find that by decreasing the interlayer distance for fixed value of the strength of the dipolar interaction, the system undergoes a qu...
Citation
Macia, A. [et al.]. Single-particle versus pair superfluidity in a bilayer system of dipolar bosons. "Physical review A", 21 Octubre 2014, vol. 90, núm. 4, p. 1-5.
Keywords
Bilayer systems, Single-particle
Group of research
SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity

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