Kavli Affiliate: Archana Raja| Summary:When Coulomb interactions dominate kinetic energy, dilute two-dimensional carriers form a Wigner solid. Both its melting and disorder-driven localization can drive density-tuned metal-insulator transitions, but their relative roles and interplay have been debated for decades. Atomically thin semiconductors offer a new test because transport and scanning tunneling microscopy can probe the […]
Kavli Affiliate: Bradford Benson | Summary:We present a measurement of the spatial clustering of galaxy clusters selected via the thermal Sunyaev-Zel’dovich (tSZ) signal. Using a cluster catalog derived from five years of SPT-3G Main field survey data, we define a sample spanning $0.25 < z < 1.1$, as well as two subsamples spanning $0.25 < […]
Kavli Affiliate: Giordano Scappucci | Summary:Semiconductor-superconductor hybrid systems form the basis for a broad range of quantum phenomena, such as Andreev bound states, topological superconductivity, and hybrid quantum Hall states. The performance of these hybrid systems can strongly benefit from the exceptional electronic properties of heterostructures with deeply buried quantum wells. However, establishing high-quality superconducting […]
Kavli Affiliate: Kaisey Mandel | Summary:We present photometric and spectroscopic follow-up observations of the strongly-lensed H-poor superluminous supernova (SLSN) 2025wny at $z = 2.0155$. We use integral-field Keck-II/KCWI spectroscopy to obtain rest-frame ultraviolet spectra spanning $11$ to $61$ days after maximum light. We use Pan-STARRS photometry to constrain the brightest image’s magnification, finding $μ_A=19.4pm1.6$, a […]
Kavli Affiliate: Peter Walter | Authors: Chari M Noddings, Rukmini Mukherjee, Carsten Peukert, Thomas G Laughlin, Jing Wang, Benjamin T Walters, Tsan-Wen Lu, Tristan Croll, Deniz Eismann, Shelly Harel, Angela Xu, Kibeom Kim, Meghna Gupta, James Crawford, Christopher P Arthur, Daniel Itzhak, Mauro Costa-Mattioli, Joachim Rudolph, Avi Ashkenazi and Peter Walter | Summary: The endoplasmic […]
Kavli Affiliate: Jin Kang | Authors: Kang Jin, Reuben A. Saunders, Jiahao Zhang, Jiaqi Lu, Aaron A. Halpern, Jaspreet Sandhu, Xingjie Pan, Cosmos Yuqi Wang, Alexander M. Li, William E. Allen, Jonathan S. Weissman and Xiaowei Zhuang | Summary: Genetic perturbations can reshape both the state of a targeted cell and the behavior of neighboring […]
Kavli Affiliate: Andrew Vanderburg | Summary:Transiting Warm Jupiters orbiting bright stars are scarcely known, but a substantial number of these planets have been uncovered by the TESS mission. In this work we report the discovery and confirmation of a transiting Warm Jupiter orbiting the bright ($V$ = 8.70) subgiant star HD 715 (TOI-6893). HD 715 […]
Kavli Affiliate: Masahiro Kawasaki | Summary:The origin of supermassive black holes, especially those already present at high redshift, remains an open problem. We propose that their seeds are primordial black holes formed from rare overdense regions of conventional thermal DM. A spectator scalar with two degenerate vacua gives the DM different masses, and hence different […]
Kavli Affiliate: Menno Veldhorst | Summary:Fault-tolerant quantum computation requires increasing the qubit count while maintaining high performance and connectivity. Semiconductor qubits have demonstrated high-fidelity operation, but growing the system size at sufficient connectivity remains challenging, such that scaling mainly occurred in one spatial direction to preserve access for control lines in the other. Here, we […]
Kavli Affiliate: Wei Gao| Summary:Dexterous manipulation poses a challenging high-dimensional optimization problem, as useful behaviors require coordinated motion across many hand joints. In reinforcement learning (RL) and sampling-based trajectory optimization, exploration commonly relies on independent robot joint perturbations, making coordinated behaviors difficult to discover. Prior work reduces this search space for grasp learning using low-dimensional […]