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Harmonically trapped Bose-Bose mixtures: a quantum Monte Carlo study (CROSBI ID 255869)

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Cikojević, Viktor ; Vranješ Markić, Leandra ; Boronat, Jordi Harmonically trapped Bose-Bose mixtures: a quantum Monte Carlo study // New journal of physics, 20 (2018), 085002, 13. doi: 10.1088/1367-2630/aad6cc

Podaci o odgovornosti

Cikojević, Viktor ; Vranješ Markić, Leandra ; Boronat, Jordi

engleski

Harmonically trapped Bose-Bose mixtures: a quantum Monte Carlo study

We study a harmonically confined Bose-Bose mixture using quantum Monte Carlo methods. Our results for the density profiles are systematically compared with mean-field predictions derived through the Gross- Pitaevskii (GP) equation in the same conditions. The phase space as a function of the interaction strengths and the relation between masses is quite rich. The miscibility criterion for the homogeneous system applies rather well to the system, with some discrepancies close to the critical line for separation. We observe significant differences between the mean-field results and the Monte Carlo ones, that magnify when the asymmetry between masses increases. In the analyzed interaction regime, we observe universality of our results which extend beyond the applicability regime for the GP equation.

Bose-Bose mixtures ; quantum Monte Carlo ; ultracold gases

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Podaci o izdanju

20

2018.

085002

13

objavljeno

1367-2630

10.1088/1367-2630/aad6cc

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Fizika

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