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Thermal-induced Local Imbalance in Repulsive Binary Bose Mixtures
Gerard Pascual, Gabriele Spada, Sebastiano Pilati +2
We study repulsive two-component Bose mixtures with equal populations and confined in a finite-size box through path-integral Monte Carlo simulations. For different values of the $…
Thermal fading of the -tail of the momentum distribution induced by the hole anomaly
Giulia De Rosi, Grigori E. Astrakharchik, Maxim Olshanii +1
We study the thermal behavior of correlations in a one-dimensional Bose gas with tunable interaction strength, crossing from weakly-repulsive to Tonks-Girardeau regime. A reference…
Correlation properties of a one-dimensional repulsive Bose gas at finite temperature
Giulia De Rosi, Riccardo Rota, Grigori E. Astrakharchik +1
We present a comprehensive study shedding light on how thermal fluctuations affect correlations in a Bose gas with contact repulsive interactions in one spatial dimension. The pair…
Theoretical approaches to liquid Helium
Jordi Boronat
In this article, we review the main theoretical methods applied to the study of liquid Helium adopting a microscopic approach, that is, starting from the many-particle Hamiltonian…
Van der Waals five-body size-energy universality
Petar Stipanović, Leandra Vranješ Markić, Jordi Boronat
A universal relationship between scaled size and scaled energy is explored in five-body self-bound quantum systems. The ground-state binding energy and structure properties are obt…
Beyond universality in repulsive SU(N) Fermi gases
Jordi Pera, Joaquim Casulleras, Jordi Boronat
Itinerant ferromagnetism in dilute Fermi gases is predicted to emerge at values of the gas parameter where second-order perturbation theory is not accurate enough to properly descr…