Effective Equations for Repulsive Quasi-One Dimensional Bose-Einstein Condensates Trapped with Anharmonic Transverse Potentials
Sign Up to like & getrecommendations! Published in 2018 at "Annalen der Physik"
DOI: 10.1002/andp.201700352
Abstract: One-dimensional nonlinear Schr\"odinger equations are derived to describe the axial effective dynamics of cigar-shaped atomic repulsive Bose-Einstein condensates trapped with anharmonic transverse potentials. The accuracy of these equations in the perturbative, Thomas-Fermi, and crossover regimes… read more here.
Keywords: bose einstein; anharmonic transverse; one dimensional; einstein condensates ... See more keywords
Entanglement in Bose-Einstein Condensates with One-Body Losses
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-017-3321-y
Abstract: We investigate quantum entanglement in two mutually non-interacting and spatially non-overlapping Bose-Einstein condensates in two harmonic potentials with one-body losses. One-body losses play an important role in the dynamical process of generating quantum entanglement. The… read more here.
Keywords: bose einstein; body losses; einstein condensates; entanglement bose ... See more keywords
Effects of Higher Order Interaction on Vortex Formation in Bose-Einstein Condensates
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-021-04801-4
Abstract: We consider theoretically the formation of vortex in rotating Bose-Einstein condensates (BECs) with higher order interaction (HOI). Our results are obtained from the twodimensional Gross-Pitaevskii equation. As the first step, for the certain number vortices,… read more here.
Keywords: formation; einstein condensates; bose einstein; higher order ... See more keywords
Common Features in Multi-species Bose–Einstein Condensates and the Origin of the Inherent Critical Phenomena
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Low Temperature Physics"
DOI: 10.1007/s10909-018-2072-3
Abstract: A general approach is proposed to solve the coupled Gross–Pitaevskii equations (CGP) for K-species Bose–Einstein condensates under the Thomas–Fermi approximation. We aim at finding out the common features of these condensates different in K. In… read more here.
Keywords: bose einstein; multi species; features multi; einstein condensates ... See more keywords
Merging of Rotating Bose–Einstein Condensates
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Low Temperature Physics"
DOI: 10.1007/s10909-018-2110-1
Abstract: Merging of isolated Bose–Einstein condensates (BECs) is an important topic due to its relevance to matter-wave interferometry and the Kibble–Zurek mechanism. Many past research focused on merging of BECs with uniform initial phases. In our… read more here.
Keywords: bose einstein; number; einstein condensates; merging rotating ... See more keywords
A Regularized Newton Method for Computing Ground States of Bose–Einstein Condensates
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Scientific Computing"
DOI: 10.1007/s10915-017-0412-0
Abstract: In this paper, we compute ground states of Bose–Einstein condensates (BECs), which can be formulated as an energy minimization problem with a spherical constraint. The energy functional and constraint are discretized by either the finite… read more here.
Keywords: regularized newton; minimization problem; bose einstein; states bose ... See more keywords
Dynamical and energetic instabilities of F=2 spinor Bose–Einstein condensates in an optical lattice
Sign Up to like & getrecommendations! Published in 2017 at "Physica D: Nonlinear Phenomena"
DOI: 10.1016/j.physd.2017.04.002
Abstract: Abstract The dynamical and energetic instabilities of the F = 2 spinor Bose–Einstein condensates in an optical lattice are investigated theoretically and numerically. By analyzing the dynamical response of different carrier waves to an additional… read more here.
Keywords: bose einstein; energetic instabilities; dynamical energetic; einstein condensates ... See more keywords
Spatiotemporal engineering of matter-wave solitons in Bose–Einstein condensates
Sign Up to like & getrecommendations! Published in 2020 at "Physics Reports"
DOI: 10.1016/j.physrep.2020.11.001
Abstract: Abstract Since the realization of Bose–Einstein condensates (BECs) trapped in optical potentials, intensive experimental and theoretical investigations have been carried out for bright and dark matter-wave solitons, coherent structures, modulational instability (MI), and nonlinear excitation… read more here.
Keywords: matter wave; bose einstein; wave solitons; matter ... See more keywords
Dynamics of rotating spin–orbit-coupled Bose–Einstein condensates in a quasicrystalline optical lattice
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DOI: 10.1016/j.rinp.2020.103755
Abstract: Abstract We investigate the dynamics of rotating pseudo-spin-1/2 Bose–Einstein condensates (BECs) with Rashba spin–orbit coupling (SOC) in a quasicrystalline optical lattice (QOL). For given parameters, the system evolves from an initial heliciform-stripe phase into a… read more here.
Keywords: dynamics rotating; bose einstein; quasicrystalline optical; einstein condensates ... See more keywords
Collective emission of matter-wave jets from driven Bose–Einstein condensates
Sign Up to like & getrecommendations! Published in 2017 at "Nature"
DOI: 10.1038/nature24272
Abstract: Scattering is used to probe matter and its interactions in all areas of physics. In ultracold atomic gases, control over pairwise interactions enables us to investigate scattering in quantum many-body systems. Previous experiments on colliding… read more here.
Keywords: matter wave; collective emission; bose einstein; matter ... See more keywords
Coherent inflationary dynamics for Bose–Einstein condensates crossing a quantum critical point
Sign Up to like & getrecommendations! Published in 2017 at "Nature Physics"
DOI: 10.1038/s41567-017-0011-x
Abstract: Quantum phase transitions, transitions between many-body ground states, are of extensive interest in research ranging from condensed-matter physics to cosmology1–4. Key features of the phase transitions include a stage with rapidly growing new order, called… read more here.
Keywords: bose einstein; coherent inflationary; quantum critical; critical point ... See more keywords