Improving cosmological reach of a gravitational wave observatory using Deep Loop Shaping

Posted by klaurent Caltech

Kavli Affiliate: Rana Adhikari | Summary:Improved low-frequency sensitivity of gravitational wave observatories would unlock study of intermediate-mass black hole mergers, binary black hole eccentricity, and provide early warnings for multi-messenger observations of binary neutron star mergers. Today’s mirror stabilization control injects harmful noise, constituting a major obstacle to sensitivity improvements. We eliminated this noise through […]


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Improved systematic evaluation of a strontium optical clock with uncertainty below $1times 10^-18$

Posted by klaurent Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Zhi-Peng Jia, Zhi-Peng Jia, , , | Summary: We report a systematic uncertainty of $9.2times 10^-19$ for the USTC Sr1 optical lattice clock, achieving accuracy at the level required for the roadmap of the redefinition of the SI second. A finite-element model with it in situ-validated, spatially-resolved […]


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Scientific Objectives of the Xue-shan-mu-chang 15-meter Submillimeter Telescope

Posted by klaurent Peking

Kavli Affiliate: Gregory Herczeg | Summary:Submillimeter astronomy is poised to revolutionize our understanding of the Universe by revealing cosmic phenomena hidden from optical and near-infrared observations, particularly those associated with interstellar dust, molecular gas, and star formation. The Xue-shan-mu-chang 15-meter submillimeter telescope (XSMT-15m), to be constructed at a premier high-altitude site (4813 m) in Qinghai, […]


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Algebra of the Infrared, secondary polytopes and perverse schobers

Posted by klaurent Tokyo

Kavli Affiliate: Mikhail Kapranov | Summary:This survey paper, based on a talk at the International Congress of Basic Science in Beijing in July 2025, summarizes joint work of the authors with M. Kontsevich [1408.2673] establishing the relation between the “Algebra of the Infrared" of D. Gaiotto, G. Moore and E. Witten [1506.04087] and the theory […]


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Cosmic Birefringence from the Atacama Cosmology Telescope Data Release 6

Posted by klaurent Tokyo

Kavli Affiliate: Eiichiro Komatsu | Summary:The polarized light of the cosmic microwave background is sensitive to new physics that violates parity symmetry. For example, the interaction of photons with the fields of elusive dark matter and dark energy could cause a uniform rotation of the plane of linear polarization across the sky, an effect known […]


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Cosmic Birefringence from the Atacama Cosmology Telescope Data Release 6

Posted by klaurent Tokyo

Kavli Affiliate: Eiichiro Komatsu | Summary:The polarized light of the cosmic microwave background is sensitive to new physics that violates parity symmetry. For example, the interaction of photons with the fields of elusive dark matter and dark energy could cause a uniform rotation of the plane of linear polarization across the sky, an effect known […]


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Separating the control of moving and holding still in post-stroke arm paresis

Posted by klaurent Hopkins

Kavli Affiliate: Reza Shadmehr | Authors: Alkis M. Hadjiosif, Kahori Kita, Scott T. Albert, Robert A. Scheidt, Reza Shadmehr and John W. Krakauer | Summary: Moving and holding still have been posited to be under separate control regimes for both eye and arm movements. The paretic arm after stroke is notable for abnormalities both at […]


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10-W Sub-100-fs Ultrafast Cr:ZnS/ZnSe MOPA System enabled by doping gradient engineering

Posted by klaurent UCAS

Kavli Affiliate: Long Zhang | First 5 Authors: Guangzi Feng, Guangzi Feng, , , | Summary: We report on a high-power mid-infrared femtosecond master oscillator power amplifier (MOPA) system, employing Cr:ZnS and Cr:ZnSe polycrystals with fine-tuned doping profiles. Based on the soft-aperture Kerr-lens mode-locking in the soliton regime, the seed oscillator generates ~40-fs pulses with […]


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Aeos is Mixing it Up: The (In)homogeneity of Metal Mixing Following Population III Star Formation

Posted by klaurent MIT

Kavli Affiliate: Anna Frebel | Summary:Stellar surface abundances are records of the state of the gas from which stars formed, and thus trace how individual elements have mixed into the surrounding medium following their ejection from stars. In this work, we test the common assumption of instantaneous and homogeneous metal mixing during the formation of […]


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MemGS: Memory-Efficient Gaussian Splatting for Real-Time SLAM

Posted by klaurent UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Yinlong Bai, Yinlong Bai, , , | Summary: Recent advancements in 3D Gaussian Splatting (3DGS) have made a significant impact on rendering and reconstruction techniques. Current research predominantly focuses on improving rendering performance and reconstruction quality using high-performance desktop GPUs, largely overlooking applications for embedded platforms like […]


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