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- W2789777716 abstract "We present a Quantum Monte Carlo study of the ground state properties of a two dimensional system of Bose particle with dipole moment in a harmonic trap. The direction of the dipoles is assumed to be fixed by an external field. We study how the system behaves when the direction of the dipole moments is changed. Our analysis is made using Path Integral Monte Carlo simulations in the Grand Canonical ensemble, using the Worm Algorithm. We study systems of increasing size, focusing on the spatial distribution of the atoms inside the trap and on the superfluid fraction of the sample. We find that vertical dipoles form a crystal, characterized by a shell structure, while tilting the dipoles has the effect of inducing a striped structure. We find that similar behaviour can be found in the analogue classical system. Vertical dipoles display nonclassical inertia while a strong tilting decreases superfluidity." @default.
- W2789777716 created "2018-03-29" @default.
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- W2789777716 date "2013-05-26" @default.
- W2789777716 modified "2023-09-27" @default.
- W2789777716 title "Path Integral Monte Carlo study of ultra cold atoms with dipolar moment in a harmonic trap" @default.
- W2789777716 hasPublicationYear "2013" @default.
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