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Diffusion Monte Carlo methods for spin-orbit-coupled ultracold Bose gases

Author
Sánchez, J.; Boronat, J.; Mazzanti, F.
Type of activity
Journal article
Journal
Physical review A
Date of publication
2018-11-27
Volume
98
Number
5
First page
053632-1
Last page
053632-16
DOI
https://doi.org/10.1103/PhysRevA.98.053632 Open in new window
Project funding
Ultracold quantum matter
Repository
http://hdl.handle.net/2117/126326 Open in new window
https://arxiv.org/abs/1807.08123 Open in new window
URL
https://journals.aps.org/pra/abstract/10.1103/PhysRevA.98.053632 Open in new window
Abstract
We present two diffusion Monte Carlo (DMC) algorithms for systems of ultracold quantum gases featuring synthetic spin-orbit interactions. The first one is a spin-integrated DMC method which provides fixed-phase energy estimates. The second one is a discrete spin generalisation of the T-moves spin-orbit DMC [Melton et al., J. Chem. Phys. 144, 244113 (2016)], which provides an upper bound to the fixed-phase energy. The former is a more accurate method but it is restricted to spin-independent two-b...
Citation
Sánchez, J., Boronat, J., Mazzanti, F. Diffusion Monte Carlo methods for spin-orbit-coupled ultracold Bose gases. "Physical review A", 27 Novembre 2018, vol. 98, núm. 5, p. 053632-1-053632-16.
Group of research
SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity

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