Phase-induced vortex pinning in rotating supersolid dipolar systems
Year: 2024
Type: article
Abstract: We analyze the pinning of vortices for a stationary rotating dipolar supersolid along the low-density paths between droplets as a function of the rotation frequency. We restrict ourselves to the stationary configurations of vortices with the same symmetry as that of the array of droplets. In particular, such an analysis clearly reveals that vortices are not only pinned at local density minima, but instead their coordinates are smooth functions of the rotation frequency. Our approach to explaining such a behavior exploits the fact that the wave function of each rotating droplet acquires a linear phase on the coordinates. Hence, the relative phases between the nearest neighboring droplets allow us to predict the position of the vortices in the intermediate low-density region. Here, we show that, for a droplet distribution forming a triangular lattice, the phases of three neighboring droplets are needed for the correct description of the vortex location. In particular, for our confined system, we demonstrate that the estimate accurately reproduces the extended Gross-Pitaevskii results in the spatial regions where the neighboring droplets are well defined.
Source: Physical Review A
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: Consejo Nacional de Investigaciones Científicas y Técnicas, Eusko Jaurlaritza, Universidad de Buenos Aires, European Research Council, European Regional Development Fund, Secretaría de Ciencia y Técnica, Universidad de Buenos Aires, Agencia Estatal de Investigación, HORIZON EUROPE European Research Council
Awards: G2262748287, G2439265903, G2754259821, G34346518, G3480869486, G3777708657, G3861891927, G425668148, G4352007914, G4428483902, G451917667, G5462412021, G5604461982, G5967599077, G6293336981, G6338344309, Supersolids: unveiling an extraordinary quantum phase of matter, G67347242, G7678057804, G8953647516
OpenAlex ID: W4396817050