Quantum Skyrmion Liquid
Dhiman Bhowmick, Andreas Haller, Deepak S. Kathyat, Thomas L. Schmidt,, Pinaki Sengupta

TL;DR
This paper provides numerical evidence for a novel quantum skyrmion liquid phase in quasi-one-dimensional lattices, characterized by fluid-like behavior, entanglement concentration, and a second-order transition from a skyrmion crystal, highlighting quantum effects absent in classical models.
Contribution
It introduces the quantum skyrmion liquid phase, demonstrating its distinct properties and transition behavior, and links quantum kinetic energy to skyrmion fluidity and potential Bose-Einstein condensation.
Findings
Identification of a quantum skyrmion liquid phase with no classical counterpart.
Second-order transition from skyrmion crystal to polarized phase.
Exponential decay of spin correlations indicating fluid-like skyrmion behavior.
Abstract
Skyrmions are topological magnetic textures, mostly treated classically, studied extensively due to their potential spintronics applications due to their topological stability. However, it remains unclear what physical phenomena differentiate a classical from a quantum skyrmion. We present numerical evidence for the existence of a quantum skyrmion liquid (SkL) phase in quasi-one-dimensional lattices which has no classical counterpart. The transition from a conventional quantum skyrmion crystal (SkX) to a field-polarized phase (FP) is found to be of second order while the analogous classical transition near zero temperature is first-order due to a missing SkL phase. As an indicator of the quantum mechanical origin of the SkL phase, we find concentrated entanglement (indicated by the concurrence) around the skyrmion center, which we attribute to the uncertainty in the skyrmion position…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAdvanced Thermodynamics and Statistical Mechanics · Optical properties and cooling technologies in crystalline materials
