Galilean invariance of Omega vortex identification method
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DOI: 10.1007/s42241-019-0024-2
Abstract: In the new vortex identification method (Liu et al. 2016) to represent the rotation level and capture and visualize the vortices, proposed in our previous study, the independence of the reference frame and the Galilean… read more here.
Keywords: identification method; vortex identification; galilean invariance;
Filtered lattice Boltzmann collision formulation enforcing isotropy and Galilean invariance
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DOI: 10.1088/1402-4896/ab4b4d
Abstract: The central framework of a filtered lattice Boltzmann collision operator formulation is to remove hydrodynamic moments that are not supported by the order of isotropy of a given lattice velocity set. Due to the natural… read more here.
Keywords: collision operator; velocity; formulation; collision ... See more keywords
Two-fluid dynamics of one-dimensional quantum liquids in the absence of Galilean invariance
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DOI: 10.1103/physrevb.100.035418
Abstract: Luttinger liquid theory of one-dimensional quantum systems ignores exponentially weak backscattering of particles. This endows Luttinger liquids with superfluid properties. The corresponding two-fluid hydrodynamic description available at present applies only to Galilean-invariant systems, whereas most… read more here.
Keywords: galilean invariance; quantum liquids; two fluid; one dimensional ... See more keywords
Three-body interactions in generic fractional quantum Hall systems and impact of Galilean invariance breaking
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DOI: 10.1103/physrevb.98.201101
Abstract: We derive full analytic expressions of three-body interactions from Landau level (LL) mixing in fractional quantum Hall (FQH) systems with Schrieffer-Wolff transformation. The formalism can be applied to any LL, and to very general systems… read more here.
Keywords: three body; fractional quantum; body interactions; body ... See more keywords