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Supersolids are theoretically predicted quantum states that break the continuous rotational and translational symmetries of liquids while preserving superfluid transport properties. Over the last decade, much progress has been made in…

量子气体 · 物理学 2019-07-03 Vili Heinonen , Keaton J. Burns , Jörn Dunkel

We establish a mathematically rigorous, general and quantitative framework to describe currents of non- (or weakly) interacting, indistinguishable particles driven far from equilibrium. We derive tight upper and lower bounds for the…

量子物理 · 物理学 2017-03-03 Mattia Walschaers , Andreas Buchleitner , Mark Fannes

We revisit the Bogoliubov theory of quantum droplets proposed by Petrov {[}Phys. Rev. Lett. \textbf{115}, 155302 (2015){]} for an ultracold Bose-Bose mixture, where the mean-field collapse is stabilized by the Lee-Huang-Yang quantum…

量子气体 · 物理学 2020-11-09 Hui Hu , Xia-Ji Liu

Hypothesis: Droplet coalescence is a common phenomenon and plays an important role in many applications. When two liquid droplets are brought into contact, a liquid bridge forms and expands quickly. Different from miscible droplets, an…

流体动力学 · 物理学 2023-12-27 Huadan Xu , Tianyou Wang , Zhizhao Che

A recently introduced particle-based model for fluid dynamics with continuous velocities is generalized to model immiscible binary mixtures. Excluded volume interactions between the two components are modeled by stochastic multiparticle…

软凝聚态物质 · 物理学 2015-05-13 Erkan Tuzel , Guoai Pan , Thomas Ihle , Daniel M. Kroll

We report on the formation of multiple quantum droplets in a heteronuclear $^{41}$K-$^{87}$Rb mixture released in an optical waveguide. By a sudden change of the interspecies interaction from the non-interacting to the strongly attractive…

量子气体 · 物理学 2025-03-31 L. Cavicchioli , C. Fort , F. Ancilotto , M. Modugno , F. Minardi , A. Burchianti

We simulate a molecular Bose-Einstein condensate in the strongly dipolar regime, observing the existence of self-bound droplets, as well as their splitting into multiple droplets by confinement-induced frustration. Our quantum Monte Carlo…

量子气体 · 物理学 2024-07-16 Tim Langen , Jordi Boronat , Juan Sánchez-Baena , Raúl Bombín , Tijs Karman , Ferran Mazzanti

Some discrepancies between experimental results on quantum droplets made of a mixture of $^{39}$K atoms in different hyperfine states and their analysis within extended Gross-Pitaevskii theory (which incorporates beyond mean-field…

量子气体 · 物理学 2020-10-28 V. Cikojević , L. Vranješ Markić , M. Pi , M. Barranco , J. Boronat

We investigate the ground-state phase diagram of a binary mixture of Bose-Einstein condensates (BECs) with competing interspecies $s$- and $p$-wave interactions. Exploiting a pseudopotential model for the $l=1$ partial wave, we derive an…

量子气体 · 物理学 2024-04-25 Min Deng , Ming Xue , Jinghan Pang , Hui Luo , Zhiguo Wang , Jinbin Li , Dayou Yang

We consider a system of nonlinear partial differential equations modelling the steady motion of an incompressible non-Newtonian fluid, which is chemically reacting. The governing system consists of a steady convection-diffusion equation for…

数值分析 · 数学 2017-03-16 Seungchan Ko , Petra Pustejovská , Endre Süli

We consider a phase field crystal modeling approach for binary mixtures of interacting active and passive particles. The approach allows to describe generic properties for such systems within a continuum model. We validate the approach by…

软凝聚态物质 · 物理学 2018-09-19 Francesco Alaimo , Axel Voigt

We analyze the microscopic model of quantum Brownian motion, describing a Brownian particle interacting with a bosonic bath through a coupling which is linear in the creation and annihilation operators of the bath, but may be a nonlinear…

量子气体 · 物理学 2015-04-17 Pietro Massignan , Aniello Lampo , Jan Wehr , Maciej Lewenstein

Molecular dynamics simulations of miscible and partially miscible binary Lennard--Jones mixtures are used to study the dynamics and thermodynamics of vapor condensation onto a non-volatile liquid drop in the canonical ensemble. When the…

软凝聚态物质 · 物理学 2015-06-17 Levent Inci , Richard. K. Bowles

In this paper we expand our previous investigation of a quantum particle subject to the action of a random potential plus a fixed harmonic potential at a finite temperature T. In the classical limit the system reduces to a well-known…

凝聚态物理 · 物理学 2009-10-28 Yadin Y. Goldschmidt

Quantum liquid-like states of matter have been realized in an ongoing series of experiments with ultracold Bose gases. Using a combination of analytical and numerical methods we identify the specific criteria for the existence of dark…

量子气体 · 物理学 2023-06-23 Matthew Edmonds

We study the interactions between two atomic species in a binary Bose-Einstein condensate to revisit the conditions for miscibility, oscillatory dynamics between the species, steady state solutions and their stability. By employing a…

量子气体 · 物理学 2010-12-09 R. Navarro , R. Carretero-Gonzalez , P. G. Kevrekidis

We discuss the possibility of making a quasi time crystal. A simple two-state model is studied to clarify our definition. In a superposition of the ground state and the excited state and the probability of observation varies periodically in…

统计力学 · 物理学 2022-03-15 Xintian Wu

With extensive variational simulations, dissipative quantum phase transitions in the sub-Ohmic spin-boson model are numerically studied in a dense limit of environmental modes. By employing a generalized trial wave function composed of…

统计力学 · 物理学 2023-09-06 Yulong Shen , Nengji Zhou

Nuclear matter at finite temperature and barion density exhibits several phase transitions that could happen at the early stages of the Universe evolution and could be realized in heavy-ion or hadron-hadron collisions. Microscopic…

高能物理 - 唯象学 · 物理学 2015-02-26 V. I. Yukalov , E. P. Yukalova

We unravel the existence and stability properties of one-dimensional droplets arising in genuine two-component particle imbalanced bosonic mixtures under the influence of a weak harmonic confinement. A plethora of miscible droplet phases is…

量子气体 · 物理学 2025-02-04 Efstathios G. Charalampidis , Simeon I. Mistakidis