Synchronized states of power grids and oscillator networks by convex optimization

Kavli Affiliate: David Gross | First 5 Authors: Carsten Hartmann, Philipp C. Böttcher, David Gross, Dirk Witthaut, | Summary: Synchronization is essential for the operation of AC power systems: All generators in the power grid must rotate with fixed relative phases to enable a steady flow of electric power. Understanding the conditions for and the […]


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Experimental demonstration of scalable cross-entropy benchmarking to detect measurement-induced phase transitions on a superconducting quantum processor

Kavli Affiliate: Matthew P. A. Fisher | First 5 Authors: Hirsh Kamakari, Jiace Sun, Yaodong Li, Jonathan J. Thio, Tanvi P. Gujarati | 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 […]


Continue.. Experimental demonstration of scalable cross-entropy benchmarking to detect measurement-induced phase transitions on a superconducting quantum processor

Quantum kinetic equation and thermal conductivity tensor for bosons

Kavli Affiliate: Leon Balents | First 5 Authors: Léo Mangeolle, Lucile Savary, Leon Balents, , | Summary: We systematically derive the quantum kinetic equation in full phase space for any quadratic hamiltonian of bosonic fields, including in the absence of translational invariance. This enables the treatment of boundaries, inhomogeneous systems and states with non-trivial textures, […]


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Distinct Optical Excitation Mechanisms of a Coherent Magnon in a van der Waals Antiferromagnet

Kavli Affiliate: Leon Balents | First 5 Authors: Clifford J. Allington, Carina A. Belvin, Urban F. P. Seifert, Mengxing Ye, Tommy Tai | Summary: The control of antiferromagnets with ultrashort optical pulses has emerged as a prominent field of research. Tailored laser excitation can launch coherent spin waves at terahertz frequencies, yet a comprehensive description […]


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Morphology and Mach Number Dependence of Subsonic Bondi-Hoyle Accretion

Kavli Affiliate: Lars Bildsten | First 5 Authors: Logan J. Prust, Hila Glanz, Lars Bildsten, Hagai B. Perets, Friedrich K. Roepke | Summary: We carry out three-dimensional computations of the accretion rate onto an object (of size $R_{rm sink}$ and mass $m$) as it moves through a uniform medium at a subsonic speed $v_{infty}$. The […]


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Learning Continuous 3D Words for Text-to-Image Generation

Kavli Affiliate: Matthew Fisher | First 5 Authors: Ta-Ying Cheng, Matheus Gadelha, Thibault Groueix, Matthew Fisher, Radomir Mech | Summary: Current controls over diffusion models (e.g., through text or ControlNet) for image generation fall short in recognizing abstract, continuous attributes like illumination direction or non-rigid shape change. In this paper, we present an approach for […]


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Learning Subject-Aware Cropping by Outpainting Professional Photos

Kavli Affiliate: Matthew Fisher | First 5 Authors: James Hong, Lu Yuan, Michaël Gharbi, Matthew Fisher, Kayvon Fatahalian | Summary: How to frame (or crop) a photo often depends on the image subject and its context; e.g., a human portrait. Recent works have defined the subject-aware image cropping task as a nuanced and practical version […]


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VecFusion: Vector Font Generation with Diffusion

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 […]


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Secret extraction attacks against obfuscated IQP circuits

Kavli Affiliate: David Gross | First 5 Authors: David Gross, Dominik Hangleiter, , , | Summary: Quantum computing devices can now perform sampling tasks which, according to complexity-theoretic and numerical evidence, are beyond the reach of classical computers. This raises the question of how one can efficiently verify that a quantum computer operating in this […]


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OGLE-BLAP-009 — A Case Study for the Properties and Evolution of Blue Large-Amplitude Pulsators

Kavli Affiliate: Lars Bildsten | First 5 Authors: Corey W. Bradshaw, Matti Dorsch, Thomas Kupfer, Brad N. Barlow, Uli Heber | Summary: Blue large-amplitude pulsators (BLAPs) make up a rare class of hot pulsating stars with effective temperatures of $approx$30,000 K and surface gravities of 4.0 – 5.0 dex (cgs). The evolutionary origin and current […]


Continue.. OGLE-BLAP-009 — A Case Study for the Properties and Evolution of Blue Large-Amplitude Pulsators