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Condens. Matter 2019, 4(1), 20; https://doi.org/10.3390/condmat4010020

Zero-Temperature Equation of State of a Two-Dimensional Bosonic Quantum Fluid with Finite-Range Interaction

Dipartimento di Fisica e Astronomia “Galileo Galilei” and CNISM, Università di Padova, Via Marzolo 8, I-35131 Padova, Italy
Received: 20 January 2019 / Revised: 30 January 2019 / Accepted: 30 January 2019 / Published: 3 February 2019
Full-Text   |   PDF [255 KB, uploaded 3 February 2019]   |   Review Reports

Abstract

We derive the two-dimensional equation of state for a bosonic system of ultracold atoms interacting with a finite-range effective interaction. Within a functional integration approach, we employ a hydrodynamic parameterization of the bosonic field to calculate the superfluid equations of motion and the zero-temperature pressure. The ultraviolet divergences, naturally arising from the finite-range interaction, are regularized with an improved dimensional regularization technique. View Full-Text
Keywords: Bose–Einstein condensation; ultracold atoms; finite-range; equation of state; two-dimensional Bose–Einstein condensation; ultracold atoms; finite-range; equation of state; two-dimensional
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Tononi, A. Zero-Temperature Equation of State of a Two-Dimensional Bosonic Quantum Fluid with Finite-Range Interaction. Condens. Matter 2019, 4, 20.

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