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18 results for “Bose-Einstein condensate”
Vortices and vortex stripes in a dipolar Bose-Einstein condensate
<p>Quantized vortices are a prototypical feature of superfluidity that have been observed in multiple quantum gas experiments. But the occurrence of vortices in dipolar quantum gases — a class of ultracold gases characterized by long-range anisotropic interactions — has not been reported yet. Here, we exploit the anisotropic nature of the dipole-dipole interaction of a dysprosium Bose-Einstein condensate to induce angular symmetry breaking in an otherwise cylindrically symmetric pancake-shaped trap. Tilting the magnetic field towards the radial plane deforms the cloud into an ellipsoid, which is then set into rotation. At stirring frequencies approaching the radial trap frequency, we observe the generation of dynamically unstable surface excitations, which cause angular momentum to be pumped into the system through vortices. Under continuous rotation, the vortices arrange into a stripe configuration along the field, in close agreement with numerical simulations.</p>
Bose-Einstein condensation of non-ground state caesium atoms
<p>We report the Bose-Einstein condensation of caesium atoms in the Zeeman-excited<br> mf = 2 state. As the magnetic field is varied, we identify two regions in which the<br> dipolar relaxation rate is sufficiently suppressed so that condensation becomes possible.<br> We characterize the phase transition and quantify the loss processes, finding unusually<br> high three-body losses in one of the two regions. Our experimental results otherwise<br> agree well with the theoretical expectation. In particular, we confirm the presence of<br> a narrow Feshbach resonance near a zero crossing in the background scattering length.<br> Our results open up new possibilities for the mixing of quantum-degenerate gases and<br> the study of impurity transport in strongly correlated one-dimensional quantum wires.</p>
Quantum Fluctuations in Quasi-One-Dimensional Dipolar Bose-Einstein Condensates
<p>Raw data for the depicted graphs in the given paper/letter</p>
Dataset from 'Topological interfaces crossed by defects and textures of continuous and discrete point group symmetries in spin-2 Bose-Einstein condensates'
<p>Dataset associated with the publication 'Topological interfaces crossed by defects and textures of continuous and discrete<br>point group symmetries in spin-2 Bose-Einstein condensates' in Physical Review Research. <br>Source data for Figures 3-8 in the manuscript.</p>
Dataset from 'Composite cores of monopoles and Alice rings in spin-2 Bose-Einstein condensates'
<p>Dataset associated with the publication 'Composite cores of monopoles and Alice rings in spin-2 Bose-Einstein condensates ' in Physical Review Research. <br>Source data for Figures 2-5 in the manuscript.</p>
Dataset: Field-induced Bose-Einstein condensation and supersolid in the two-dimensional Kondo necklace
<p>The open Dataset for "Field-induced Bose-Einstein condensation and supersolid in the two-dimensional Kondo necklace". </p>
Exploring Bifurcations in Bose-Einstein Condensates via Phase Field Crystal Models
<p>Supplementary data for the following paper: Alina Barbara Steinberg, Fabian Maucher, Svetlana Gurevich, Uwe Thiele, "Exploring Bifurcations in Bose-Einstein Condensates via Phase Field Crystal Models"</p>
Observation of fragmentation of a spinor Bose-Einstein condensate
<p>Data and theory curve for the figures of the publication "Observation of fragmentation of a spinor Bose-Einstein condensate".</p>
Data for the article "Evidence for spin current driven Bose-Einstein condensation of magnons"
<p>Data for the article "Evidence for spin current driven Bose-Einstein condensation of magnons"</p>
Research data supporting "Observation of nonlinear response and Onsager regression in a photon Bose-Einstein condensate"
<p>This repository contains the data presented in the manuscript titled "Observation of nonlinear response and Onsager regression in a photon Bose-Einstein condensate" by A. Sazhin et al., Nature Communications <strong>15</strong>, Article number: <span>4730</span> (<span>2024</span>), arXiv:2403.04705. The files named 'fig{1,2,3,4}.xlsx' contain the final data sets relevant to reproduce all plots shown in the paper.</p>
Fluctuation-dissipation relation for a Bose-Einstein condensate of photons
<p>This repository contains the data presented in the manuscript titled "Fluctuation-dissipation relation for a Bose-Einstein condensate of photons" by F. E. Öztürk et al., <em>Phys. Rev. Lett. </em><strong>130</strong>, 033602 (2023)</p> <p>The files named 'fig{1,2,3,4}.xlsx' contain the final data sets relevant to reproduce all plots shown in the paper.</p>
Lattice Polaron in a Bose-Einstein Condensate of Hard-Core Bosons
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Data for the paper "Microcanonical and canonical fluctuations in atomic Bose-Einstein condensates – Fock state sampling approach"
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Oscillating superflow in multicomponent Bose-Einstein condensates
<p>Two movies 1) "<a href="../api/records/12714022/draft/files/Oscillatorysuperflow_supp1.mov/content" target="_blank" rel="noopener noreferrer">Oscillatorysuperflow_supp1.mov</a>" shows superflow with an oscillating direction of flow around an elliptical potential while 2) "<a href="../api/records/12714022/draft/files/Superflow_supp2.mov/content" target="_blank" rel="noopener noreferrer">Superflow_supp2.mov</a>" shows superflow of a two-component condensate around the same elliptical potential. Simulation parameters are included in the movies and the accompanying manuscript. </p>
Simulation script and data for "Second sound in the crossover from the Bose-Einstein condensate to the Bardeen-Cooper-Schrieffer superfluid"
<p>This upload includes numerical scripts and data used for the results in the main text and the supplementary material of the paper "Second sound in the crossover from the Bose-Einstein condensate to the Bardeen-Cooper-Schrieffer superfluid", arXiv:2003.06847.</p>
Data: Collective excitations of a Bose-Einstein condensate of hard-core bosons and their mediated interactions: from two-body bound states to mediated superfluidity
<p>Data set for the manuscript: Collective excitations of a Bose-Einstein condensate of hard-core bosons and their mediated interactions: from two-body bound states to mediated superfluidity </p>
Source Data for Blinova et al., Observation of an Alice Ring in a Bose-Einstein Condensate (2023).
<p>Source data.</p>
Bose-Einstein Condensation of Light in a Semiconductor Quantum Well Microcavity
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.