Kavli Affiliate: Leon Balents| First 5 Authors: Chuang Chen, Chuang Chen, , , | Summary:We design a lattice model of non-compact U(1) gauge field coupled to fermions with a flavor chemical potential and solve it with large-scale determinant quantum Monte Carlo simulations. For zero flavor chemical potential, the model realizes three-dimensional quantum electrodynamics (QED$_3$) which […]

Kavli Affiliate: Mark Bowick| First 5 Authors: Fridtjof Brauns, Fridtjof Brauns, , , | Summary:The self-propulsion of +1/2 topological defects is a hallmark of active nematic fluids, where the defects are advected by the flow field they themselves generate. In this paper we propose a minimal model for defect self-propulsion in a nematic active solid: […]

Kavli Affiliate: David J. Gross| First 5 Authors: Claudius Krause, Claudius Krause, , , | Summary:We present the results of the "Fast Calorimeter Simulation Challenge 2022" – the CaloChallenge. We study state-of-the-art generative models on four calorimeter shower datasets of increasing dimensionality, ranging from a few hundred voxels to a few tens of thousand voxels. […]

Kavli Affiliate: Mark Bowick| First 5 Authors: Jin-Sheng Wu, Jin-Sheng Wu, , , | Summary:We study topologically stable defect structures in systems where the defect line classification in three dimensions and associated algebra of interactions (the fundamental group) are governed by the non-Abelian 8-element group, the quaternions Q_8. The non-Abelian character of the defect algebra […]

Kavli Affiliate: Leon Balents | First 5 Authors: Ren-Bo Wang, Naveen Nishad, Anna Keselman, Leon Balents, Oleg A. Starykh | Summary: We present the theory of the longitudinal spin Seebeck effect between a Heisenberg spin-1/2 chain and a conductor. The effect consists of the generation of a spin current across the spin chain-conductor interface in […]

Kavli Affiliate: Mark Bowick| First 5 Authors: John Berezney, John Berezney, , , | Summary:Equilibrium self-assembly and conventional materials processing techniques fall far short of mimicking dynamic self-actuating processes that are commonplace throughout biology. To bridge the gap between living and synthetic matter, we study adhesive non-thermal fibers immersed in an active fluid. Autonomous chaotic […]

Kavli Affiliate: Matthew P. A. Fisher| First 5 Authors: Hirsh Kamakari, Hirsh Kamakari, , , | Summary:Quantum systems subject to random unitary evolution and measurements at random points in spacetime exhibit entanglement phase transitions which depend on the frequency of these measurements. Past work has experimentally observed entanglement phase transitions on near-term quantum computers, but […]

Kavli Affiliate: Matthew Fisher | First 5 Authors: Vikas Thamizharasan, Difan Liu, Shantanu Agarwal, Matthew Fisher, Michael Gharbi | Summary: We present VecFusion, a new neural architecture that can generate vector fonts with varying topological structures and precise control point positions. Our approach is a cascaded diffusion model which consists of a raster diffusion model […]

Kavli Affiliate: Boris I. Shraiman| First 5 Authors: Nikolas H. Claussen, Nikolas H. Claussen, , , | Summary:Convergent extension of epithelial tissue is a key motif of animal morphogenesis. On a coarse scale, cell motion resembles laminar fluid flow; yet in contrast to a fluid, epithelial cells adhere to each other and maintain the tissue […]

Kavli Affiliate: Leon Balents | First 5 Authors: Zhenhao Song, Urban F. P. Seifert, Zhu-Xi Luo, Leon Balents, | Summary: In this work, we study a slave-rotor mean-field theory of an extended Hubbard model, applicable to transition metal dichalcogenide moir’e systems, that captures both the formation of Wigner crystals as well as exotic spin states […]