Geometry Field Splatting with Gaussian Surfels

Kavli Affiliate: Cheng Peng | First 5 Authors: Kaiwen Jiang, Venkataram Sivaram, Cheng Peng, Ravi Ramamoorthi, | Summary: Geometric reconstruction of opaque surfaces from images is a longstanding challenge in computer vision, with renewed interest from volumetric view synthesis algorithms using radiance fields. We leverage the geometry field proposed in recent work for stochastic opaque […]


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Postselection in lattice bosons undergoing continuous measurements

Kavli Affiliate: Matthew P. A. Fisher | First 5 Authors: Diego Barberena, Matthew P. A. Fisher, , , | Summary: We study in detail the postselection problem in a specific model: bosons hopping on a lattice subjected to continuous local measurements of quadrature observables. We solve the model analytically and show that the postselection overhead […]


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Rigidity Results for Compact Submanifolds with Pinched Ricci Curvature in Euclidean and Spherical Space Forms

Kavli Affiliate: Yi Zhou | First 5 Authors: Jianquan Ge, Ya Tao, Yi Zhou, , | Summary: For compact submanifolds in Euclidean and Spherical space forms with Ricci curvature bounded below by a function $alpha(n,k,H,c)$ of mean curvature, we prove that the submanifold is either isometric to the Einstein Clifford torus, or a topological sphere […]


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Preparation and observation of anomalous counterpropagating edge states in a periodically driven optical Raman lattice

Kavli Affiliate: Long Zhang | First 5 Authors: Hongting Hou, Long Zhang, , , | Summary: Motivated by the recent observation of real-space edge modes with ultracold atoms [Braun et al., Nat. Phys. 20, 1306 (2024)], we investigate the preparation and detection of anomalous counterpropagating edge states — a defining feature of the anomalous Floquet […]


Continue.. Preparation and observation of anomalous counterpropagating edge states in a periodically driven optical Raman lattice

Preparation and observation of anomalous counterpropagating edge states in a periodically driven optical Raman lattice

Kavli Affiliate: Long Zhang | First 5 Authors: Hongting Hou, Long Zhang, , , | Summary: Motivated by the recent observation of real-space edge modes with ultracold atoms [Braun et al., Nat. Phys. 20, 1306 (2024)], we investigate the preparation and detection of anomalous counterpropagating edge states — a defining feature of the anomalous Floquet […]


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D-commuting SYK model: building quantum chaos from integrable blocks

Kavli Affiliate: Cheng Peng | First 5 Authors: Ping Gao, Han Lin, Cheng Peng, , | Summary: We construct a new family of quantum chaotic models by combining multiple copies of integrable commuting SYK models. As each copy of the commuting SYK model does not commute with others, this construction breaks the integrability of each […]


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Sobolev Versus Homogeneous Sobolev Extension

Kavli Affiliate: Zheng Zhu | First 5 Authors: Pekka Koskela, Riddhi Mishra, Zheng Zhu, , | Summary: In this paper, we study the relationship between Sobolev extension domains and homogeneous Sobolev extension domains. Precisely, we obtain the following results. 1- Let $1leq qleq pleq infty$. Then a bounded $(L^{1, p}, L^{1, q})$-extension domain is also […]


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Nonresonant nonlinear magnonics in an antiferromagnet

Kavli Affiliate: Leon Balents | First 5 Authors: Gu-Feng Zhang, Sheikh Rubaiat Ul Haque Kelson J. Kaj, Xiang Chen, Urban F. P. Seifert, Jingdi Zhang | Summary: Antiferromagnets exhibit rapid spin dynamics in a net zero magnetic background which enables novel spintronic applications and interrogation of many-body quantum phenomena. The layered antiferromagnet Sr$_2$IrO$_4$ hosts an […]


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SPARS3R: Semantic Prior Alignment and Regularization for Sparse 3D Reconstruction

Kavli Affiliate: Cheng Peng | First 5 Authors: Yutao Tang, Yuxiang Guo, Deming Li, Cheng Peng, | Summary: Recent efforts in Gaussian-Splat-based Novel View Synthesis can achieve photorealistic rendering; however, such capability is limited in sparse-view scenarios due to sparse initialization and over-fitting floaters. Recent progress in depth estimation and alignment can provide dense point […]


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Diffusive dynamics of charge regulated macro-ion solutions

Kavli Affiliate: Rudolf Podgornik | First 5 Authors: Bin Zheng, Shigeyuki Komura, David Andelman, Rudolf Podgornik, | Summary: Onsager’s variational principle is generalized to address the diffusive dynamics of an electrolyte solution composed of charge-regulated macro-ions and counterions. The free energy entering the Rayleighian corresponds to the Poisson-Boltzmann theory augmented by the charge-regulation mechanism. The […]


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