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We exemplify the impact of beyond Lee-Huang-Yang (LHY) physics, especially due to intercomponent correlations, in the ground state and the quench dynamics of one-dimensional so-called quantum droplets using an ab-initio nonperturbative…

量子气体 · 物理学 2021-11-23 S. I. Mistakidis , T. Mithun , P. G. Kevrekidis , H. R. Sadeghpour , P. Schmelcher

The collective excitation modes in quantum droplets trapped in a two-dimensional harmonic potential in the context of symmetric weakly interacting binary bosonic mixtures are studied. By utilizing the linearization technique, the…

量子气体 · 物理学 2024-08-30 Yifan Fei , Xucong Du , Xiao-Long Chen , Yunbo Zhang

This work theoretically investigates \textcolor{black}{the stationary properties} and the dynamics of the rotating quantum liquid droplets confined in a two-dimensional symmetric anharmonic trap. Mimicking the quantum Hall systems, the…

量子气体 · 物理学 2024-06-05 Szu-Cheng Cheng , Yu-Wen Wang , Wen-Hsuan Kuan

Great effort has been invested over the past decade in studying the properties of quantum droplets, a phase of bosonic quantum matter that arises as a consequence of the fluctuating Lee-Huang-Yang correction. However, the dynamics of…

量子气体 · 物理学 2026-01-27 Enrique Calderoli , Gerardo Martinez

We explore the formation of one-dimensional two-component quantum droplets with intercomponent particle imbalance using an ab-initio many-body method. It is shown that for moderate particle imbalance each component maintains its droplet…

量子气体 · 物理学 2024-09-02 I. A. Englezos , P. Schmelcher , S. I. Mistakidis

A two-component quantum droplet is an attractive mixture of ultracold bosons stabilised against collapse by quantum fluctuations. Commonly, two-component quantum droplets are studied within a balanced mixture. However, the mixture can be…

量子气体 · 物理学 2023-09-11 Thomas A. Flynn , Nick A. Keepfer , Nick G. Parker , Thomas P. Billam

We predict that Lee-Huang-Yang effect makes it possible to create stable quantum droplets (QDs) in binary Bose-Einstein condensates with a hetero-symmetric or hetero-multipole structure, i.e., different vorticities or multipolarities in…

量子气体 · 物理学 2020-10-07 Yaroslav V. Kartashov , Boris A. Malomed , Lluis Torner

We apply the framework of non-equilibrium quantum thermodynamics to the physics of quenched small-sized bosonic quantum gases in a one-dimensional harmonic trap. We show that dynamical orthogonality can occur in these few-body systems with…

A temporal response of two interacting particles to a quench of the coupling strength in one-dimensional harmonic and anharmonic traps is explored. The coupling strength is changed from repulsive to attractive interactions and vice versa.…

原子物理 · 物理学 2022-04-27 I. S. Ishmukhamedov

The correlated non-equilibrium dynamics of few-boson systems in one-dimensional finite lattices is investigated. Starting from weak interactions we perform a sudden interaction quench and employ the numerically exact Multi-Layer…

量子气体 · 物理学 2017-10-31 S. I. Mistakidis , L. Cao , P. Schmelcher

We describe a quantum droplet of a Bose-Bose mixture squeezed by an external harmonic forces in one spatial direction. Our approach is based on the self-consistent method formulated in [1]. The true spatial droplet profile in the direction…

量子气体 · 物理学 2022-08-17 Paweł Zin , Maciej Pylak , Mariusz Gajda

We investigate the collective dynamics of self-propelled droplets, confined in a one dimensional micro-fluidic channel. On one hand, neighboring droplets align and form large trains of droplets moving in the same direction. On the other…

软凝聚态物质 · 物理学 2020-05-14 Pierre Illien , Charlotte de Blois , Yang Liu , Marjolein N. van der Linden , Olivier Dauchot

We explore the dynamics and interactions of multiple bright droplets and bubbles, as well as the interactions of kinks with droplets and with antikinks, in the extended one-dimensional Gross-Pitaevskii model including the Lee-Huang-Yang…

The Lee-Huang-Yang (LHY) energy correction at the edge of the mean-field stability regime is known to give rise to beyond mean-field structures in a wide variety of systems. In this work, we analytically derive the LHY energy for two-,…

量子气体 · 物理学 2025-11-26 I. A. Englezos , P. Schmelcher , S. I. Mistakidis

We theoretically investigate ground-state properties and collective excitations of one-dimensional quantum droplets in asymmetric Bose-Bose mixtures with unequal intraspin interactions. Using the extended Gross-Pitaevskii equation supported…

量子气体 · 物理学 2026-01-26 Huiyun Xiao , Xinran Zhang , Junli Liu , Xucong Du , Xiao-Long Chen , Yunbo Zhang

We investigate the rotational response of a confined, two-dimensional quantum droplet, which emerges in an attractive binary Bose mixture that is stabilized against collapse by beyond-mean-field effects. We consider both a harmonic and an…

量子气体 · 物理学 2026-03-24 S. Nikolaou , G. M. Kavoulakis , M. Ogren

While binary atomic Bose-Einstein condensates are typically prone to collapse under strong interspecies attraction, it has been shown that higher-order fluctuation corrections, known as Lee-Huang-Yang corrections, can stabilize the mixture.…

量子气体 · 物理学 2025-08-25 Wen-Bin He , Su Yi , Thomas Busch

We analyze the relaxation dynamics in an open system, composed by a quantum gas of bosons in a lattice interacting via both contact and global interactions. We report the onset of periodic oscillations of the atomic coherences exhibiting…

量子气体 · 物理学 2025-02-25 Catalin-Mihai Halati , Ameneh Sheikhan , Giovanna Morigi , Corinna Kollath

This work deals with the effects of an anharmonic trap on an interacting two-boson system in one dimension. Our primary focus is on the role of the induced coupling between the center of mass and the relative motion as both anharmonicity…

其他凝聚态物理 · 物理学 2007-08-09 Christian Matthies , Sascha Zöllner , Hans-Dieter Meyer , Peter Schmelcher

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
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