On the on-shell equivalence of general relativity and Holst theories with nonmetricity, torsion, and boundaries

Kavli Affiliate: J. S. Villasenor | First 5 Authors: J. Fernando Barbero G., Juan Margalef-Bentabol, Valle Varo, Eduardo J. S. Villaseñor, | Summary: We study a generalization of the Holst action where we admit nonmetricity and torsion in manifolds with timelike boundaries (both in the metric and tetrad formalism). We prove that its space of […]


Continue.. On the on-shell equivalence of general relativity and Holst theories with nonmetricity, torsion, and boundaries

Modular representation and control of floppy networks

Kavli Affiliate: L. Mahadevan | First 5 Authors: Siheng Chen, Fabio Giardina, Gary P. T. Choi, L. Mahadevan, | Summary: Geometric graph models of systems as diverse as proteins, robots, and mechanical structures from DNA assemblies to architected materials point towards a unified way to represent and control them in space and time. While much […]


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High-field transport and hot electron noise in GaAs from first principles: role of two-phonon scattering

Kavli Affiliate: Austin J. Minnich | First 5 Authors: Peishi S. Cheng, Shi-Ning Sun, Alexander Y. Choi, Austin J. Minnich, | Summary: High-field charge transport in semiconductors is of fundamental interest and practical importance. While the ab initio treatment of low-field transport is well-developed, the treatment of high-field transport is much less so, particularly for […]


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Monitoring inner regions in the RY Tau jet

Kavli Affiliate: Moritz Guenther | First 5 Authors: Taichi Uyama, Michihiro Takami, Gabriele Cugno, Vincent Deo, Olivier Guyon | Summary: We present multi-epoch observations of the RY~Tau jet for H$alpha$ and [ion{Fe}{2}] 1.644 micron~emission lines obtained with Subaru/SCExAO+VAMPIRES, Gemini/NIFS, and Keck/OSIRIS in 2019–2021. These data show a series of four knots within 1$arcsec$ consistent with […]


Continue.. Monitoring inner regions in the RY Tau jet

Monitoring inner regions in the RY Tau jet

Kavli Affiliate: Moritz Guenther | First 5 Authors: Taichi Uyama, Michihiro Takami, Gabriele Cugno, Vincent Deo, Olivier Guyon | Summary: We present multi-epoch observations of the RY~Tau jet for H$alpha$ and [ion{Fe}{2}] 1.644 micron~emission lines obtained with Subaru/SCExAO+VAMPIRES, Gemini/NIFS, and Keck/OSIRIS in 2019–2021. These data show a series of four knots within 1$arcsec$ consistent with […]


Continue.. Monitoring inner regions in the RY Tau jet

Using the Sun to Measure the Primary Beam Response of the Canadian Hydrogen Intensity Mapping Experiment

Kavli Affiliate: Kiyoshi Masui | First 5 Authors: CHIME Collaboration, Mandana Amiri, Kevin Bandura, Anja Boskovic, Jean-François Cliche | Summary: We present a beam pattern measurement of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) made using the Sun as a calibration source. As CHIME is a pure drift scan instrument, we rely on the seasonal […]


Continue.. Using the Sun to Measure the Primary Beam Response of the Canadian Hydrogen Intensity Mapping Experiment

Using the Sun to Measure the Primary Beam Response of the Canadian Hydrogen Intensity Mapping Experiment

Kavli Affiliate: Kiyoshi Masui | First 5 Authors: CHIME Collaboration, Mandana Amiri, Kevin Bandura, Anja Boskovic, Jean-François Cliche | Summary: We present a beam pattern measurement of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) made using the Sun as a calibration source. As CHIME is a pure drift scan instrument, we rely on the seasonal […]


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Stable pairs and Gopakumar-Vafa type invariants on holomorphic symplectic 4-folds

Kavli Affiliate: Yukinobu Toda | First 5 Authors: Yalong Cao, Georg Oberdieck, Yukinobu Toda, , | Summary: As an analogy to Gopakumar-Vafa conjecture on Calabi-Yau 3-folds, Klemm-Pandharipande defined Gopakumar-Vafa type invariants of a Calabi-Yau 4-fold $X$ using Gromov-Witten theory. When $X$ is holomorphic symplectic, Gromov-Witten invariants vanish and one can consider the corresponding reduced theory. […]


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High throughput data-driven design of laser crystallized 2D MoS2 chemical sensors

Kavli Affiliate: Xiang Zhang | First 5 Authors: Drake Austin, Paige Miesle, Deanna Sessions, Michael Motala, David Moore | Summary: High throughput characterization and processing techniques are becoming increasingly necessary to navigate multivariable, data-driven design challenges for sensors and electronic devices. For two-dimensional materials, device performance is highly dependent upon a vast array of material […]


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Broadband Squeezed Microwaves and Amplification with a Josephson Traveling-Wave Parametric Amplifier

Kavli Affiliate: Irfan Siddiqi | First 5 Authors: Jack Y. Qiu, Arne Grimsmo, Kaidong Peng, Bharath Kannan, Benjamin Lienhard | Summary: Squeezing of the electromagnetic vacuum is an essential metrological technique that is used to reduce quantum noise in applications spanning gravitational wave detection, biological microscopy, and quantum information science. In circuit quantum electrodynamics, squeezed […]


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