Frontiers in multidimensional self-trapping of nonlinear fields and matter

YV Kartashov, GE Astrakharchik, BA Malomed… - Nature Reviews …, 2019 - nature.com
Abstract 2D and 3D solitons and related states, such as quantum droplets, can appear in
optical systems, atomic Bose–Einstein condensates (BECs) and liquid crystals, among other …

Few-body Bose gases in low dimensions—A laboratory for quantum dynamics

SI Mistakidis, AG Volosniev, RE Barfknecht, T Fogarty… - Physics Reports, 2023 - Elsevier
Cold atomic gases have become a paradigmatic system for exploring fundamental physics,
which at the same time allows for applications in quantum technologies. The accelerating …

New states of matter with fine-tuned interactions: quantum droplets and dipolar supersolids

F Böttcher, JN Schmidt, J Hertkorn… - Reports on Progress …, 2020 - iopscience.iop.org
Quantum fluctuations can stabilize Bose–Einstein condensates (BEC) against the mean-
field collapse. Stabilization of the condensate has been observed in quantum degenerate …

Observation of quantum droplets in a heteronuclear bosonic mixture

C D'Errico, A Burchianti, M Prevedelli, L Salasnich… - Physical Review …, 2019 - APS
We report on the formation of heteronuclear quantum droplets in an attractive bosonic
mixture of K 41 and Rb 87. We observe long-lived self-bound states, both in free space and …

Lee-Huang-Yang effects in the ultracold mixture of and with attractive interspecies interactions

Z Guo, F Jia, L Li, Y Ma, JM Hutson, X Cui… - Physical Review …, 2021 - APS
The beyond-mean-field Lee-Huang-Yang (LHY) correction is ubiquitous in dilute ultracold
quantum gases. However, its effects are often elusive due to the typically much larger …

Probing the roton excitation spectrum of a stable dipolar Bose gas

D Petter, G Natale, RMW van Bijnen, A Patscheider… - Physical Review Letters, 2019 - APS
We measure the excitation spectrum of a stable dipolar Bose-Einstein condensate over a
wide momentum range via Bragg spectroscopy. We precisely control the relative strength ε …

One-dimensional mixtures of several ultracold atoms: a review

T Sowiński, MÁ García-March - Reports on Progress in Physics, 2019 - iopscience.iop.org
Recent theoretical and experimental progress on studying one-dimensional systems of
bosonic, fermionic, and Bose–Fermi mixtures of a few ultracold atoms confined in traps is …

Ground-state properties and Bogoliubov modes of a harmonically trapped one-dimensional quantum droplet

X Du, Y Fei, XL Chen, Y Zhang - Physical Review A, 2023 - APS
We study the stationary and excitation properties of a one-dimensional quantum droplet in a
two-component Bose mixture trapped in a harmonic potential. By constructing the energy …

Beyond Lee-Huang-Yang description of self-bound Bose mixtures

M Ota, GE Astrakharchik - SciPost Physics, 2020 - scipost.org
We investigate the properties of self-bound ultradilute Bose-Bose mixtures, beyond the Lee-
Huang-Yang description. Our approach is based on the determination of the beyond mean …

Stable higher-charge vortex droplets governed by quantum fluctuations in three dimensions

L Dong, M Fan - Chaos, Solitons & Fractals, 2023 - Elsevier
We predict the existence, stability and evolutionary dynamics of three-dimensional (3D)
fundamental and vortex droplets governed by quantum fluctuations in a mixture of Bose …