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12 papers · 1 filter
On Design Choices in Similarity-Preserving Sparse Randomized Embeddings
Denis Kleyko, Dmitri A. Rachkovskij
Expand & Sparsify is a principle that is observed in anatomically similar neural circuits found in the mushroom body (insects) and the cerebellum (mammals). Sensory data are projec…
Yrast states of quantum droplets confined in a ring potential
M. Ögren, G. M. Kavoulakis
We consider a quantum droplet which is confined in a ring potential. We investigate the so-called "yrast" state, i.e., the lowest-energy state of the droplet assuming that it has s…
Spin-lattice couplings in ferromagnets: analysis from first-principles
I. P. Miranda, M. Pankratova, M. Weißenhofer +8
Magnetoelasticity plays a crucial role in numerous magnetic phenomena, including magnetocalorics, magnon excitation via acoustic waves, and ultrafast demagnetization/Einstein-de Ha…
Rapidly-rotating quantum droplets confined in a harmonic potential
S. Nikolaou, G. M. Kavoulakis, M. Ogren
We consider a "symmetric" quantum droplet in two spatial dimensions, which rotates in a harmonic potential, focusing mostly on the limit of "rapid" rotation. We examine this proble…
Transverse optical gradient force in untethered rotating metaspinners
Einstom Engay, Mahdi Shanei, Vasilii Mylnikov +4
Nanostructured dielectric metasurfaces offer unprecedented opportunities to control light-matter momentum exchange, and thereby the forces and torques that light can exert on matte…
Discrete Lehmann representation of three-point functions
Dominik Kiese, Hugo U. R. Strand, Kun Chen +3
We present a generalization of the discrete Lehmann representation (DLR) to three-point correlation and vertex functions in imaginary time and Matsubara frequency. The representati…