Astrophysics – Page 557 – Kavli Institute Pre-Print Publications

Dynamic scaling properties of multistep polarization response in ferroelectrics

Posted by klaurent March 31, 2022Peking

Kavli Affiliate: Ke Wang | First 5 Authors: Yuri A. Genenko, Sergey Zhukov, Maohua Zhang, Ke Wang, Jurij Koruza | Summary: Ferroelectrics are multifunctional smart materials finding applications in sensor technology, micromechanical actuation, digital information storage etc. Their most fundamental property is the ability of polarization switching under applied electric field. In particular, understanding of […]

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Undecidable problems in quantum field theory

Posted by dbos March 30, 2022Tokyo

Kavli Affiliate: Yuji Tachikawa | First 5 Authors: Yuji Tachikawa, , , , | Summary: We point out that some questions in quantum field theory are undecidable in a precise mathematical sense. More concretely, it will be demonstrated that there is no algorithm answering whether a given 2d supersymmetric Lagrangian theory breaks supersymmetry or not. […]

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Searching for axion-like time-dependent cosmic birefringence with data from SPT-3G

Posted by March 30, 2022Stanford

Kavli Affiliate: Chao-Lin Kuo | First 5 Authors: K. R. Ferguson, A. J. Anderson, N. Whitehorn, P. A. R. Ade, M. Archipley | Summary: Ultralight axionlike particles (ALPs) are compelling dark matter candidates because of their potential to resolve small-scale discrepancies between $Lambda$CDM predictions and cosmological observations. Axion-photon coupling induces a polarization rotation in linearly […]

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The Latest Constraints on Inflationary B-modes from the BICEP/Keck Telescopes

Posted by March 30, 2022Stanford

Kavli Affiliate: Chao-Lin Kuo | First 5 Authors: BICEP/Keck Collaboration, :, P. A. R. Ade, Z. Ahmed, M. Amiri | Summary: For the past decade, the BICEP/Keck collaboration has been operating a series of telescopes at the Amundsen-Scott South Pole Station measuring degree-scale $B$-mode polarization imprinted in the Cosmic Microwave Background (CMB) by primordial gravitational […]

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Why are we still using 3D masses for cluster cosmology?

Posted by klaurent March 30, 2022April 11, 2022Chicago

Kavli Affiliate: Salman Habib | First 5 Authors: Stijn N. B. Debackere, Henk Hoekstra, Joop Schaye, Katrin Heitmann, Salman Habib | Summary: The abundance of clusters of galaxies is highly sensitive to the late-time evolution of the matter distribution, since clusters form at the highest density peaks. However, the 3D cluster mass cannot be inferred […]

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Learning to Socially Navigate in Pedestrian-rich Environments with Interaction Capacity

Posted by klaurent March 30, 2022Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Quecheng Qiu, Shunyi Yao, Jing Wang, Jun Ma, Guangda Chen | Summary: Existing navigation policies for autonomous robots tend to focus on collision avoidance while ignoring human-robot interactions in social life. For instance, robots can pass along the corridor safer and easier if pedestrians notice them. Sounds […]

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Snowmass 2021: Superconducting Sensor Fabrication Capabilities for HEP Science

Posted by klaurent March 30, 2022Stanford

Kavli Affiliate: Dale Li | First 5 Authors: Thomas Cecil, Clarence L. Chang, Shannon M. Duff, Dale Li, Rupak Mahapatra | Summary: Superconducting sensors are a key enabling technology for many HEP experiments with advances in sensor capabilities leading directly to expanded science reach. The unique materials and processes required for the fabrication of these […]

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Snowmass 2021: Superconducting Sensor Fabrication Capabilities for HEP Science

Posted by klaurent March 30, 2022Stanford

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Snowmass 2021: Superconducting Sensor Fabrication Capabilities for HEP Science

Posted by March 30, 2022Chicago

Kavli Affiliate: Clarence L. Chang | First 5 Authors: Thomas Cecil, Clarence L. Chang, Shannon M. Duff, Dale Li, Rupak Mahapatra | Summary: Superconducting sensors are a key enabling technology for many HEP experiments with advances in sensor capabilities leading directly to expanded science reach. The unique materials and processes required for the fabrication of […]

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Pressure-induced superconductivity in flat-band Kagome compounds Pd$_3$P$_2$(S$_{1-x}$Se$_x$)$_8$

Posted by klaurent March 30, 2022Peking

Kavli Affiliate: Feng Yuan | First 5 Authors: Shuo Li, Shuo Han, Shaohua Yan, Yi Cui, Le Wang | Summary: We performed high-pressure transport studies on the flat-band Kagome compounds, Pd$_3$P$_2$(S$_{1-x}$Se$_x$)$_8$ ($x$ = 0, 0.25), with a diamond anvil cell. For both compounds, the resistivity exhibits an insulating behavior with pressure up to 17 GPa. […]

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