A fast radio burst localized at detection to a galactic disk using very long baseline interferometry

Posted by dbos MIT

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Tomas Cassanelli, Calvin Leung, Pranav Sanghavi, Juan Mena-Parra, Savannah Cary | Summary: Fast radio bursts (FRBs) are millisecond-duration, luminous radio transients of extragalactic origin. These events have been used to trace the baryonic structure of the Universe using their dispersion measure (DM) assuming that the contribution […]


Continue.. A fast radio burst localized at detection to a galactic disk using very long baseline interferometry

A fast radio burst localized at detection to a galactic disk using very long baseline interferometry

Posted by klaurent MIT

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Tomas Cassanelli, Calvin Leung, Pranav Sanghavi, Juan Mena-Parra, Savannah Cary | Summary: Fast radio bursts (FRBs) are millisecond-duration, luminous radio transients of extragalactic origin. These events have been used to trace the baryonic structure of the Universe using their dispersion measure (DM) assuming that the contribution […]


Continue.. A fast radio burst localized at detection to a galactic disk using very long baseline interferometry

A fast radio burst localized at detection to a galactic disk using very long baseline interferometry

Posted by klaurent MIT

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Tomas Cassanelli, Calvin Leung, Pranav Sanghavi, Juan Mena-Parra, Savannah Cary | Summary: Fast radio bursts (FRBs) are millisecond-duration, luminous radio transients of extragalactic origin. These events have been used to trace the baryonic structure of the Universe using their dispersion measure (DM) assuming that the contribution […]


Continue.. A fast radio burst localized at detection to a galactic disk using very long baseline interferometry

The Classical Equations of Motion of Quantized Gauge Theories, Part 2: Electromagnetism

Posted by klaurent Tokyo

Kavli Affiliate: Tom Melia | First 5 Authors: David E. Kaplan, Tom Melia, Surjeet Rajendran, , | Summary: In this and companion papers, we show that quantum field theories with gauge symmetries permit a broader class of classical dynamics than typically assumed. In this article, we show that the quantization of electromagnetism permits the existence […]


Continue.. The Classical Equations of Motion of Quantized Gauge Theories, Part 2: Electromagnetism

Giant anisotropic band flattening in twisted $Γ$ valley semiconductor bilayers

Posted by dbos Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Huan Wang, Zhaochen Liu, Yadong Jiang, Jing Wang, | Summary: We propose a general theory of anisotropic band flattening in moir’e systems at the $Gamma$ valley. For a two-dimensional semiconductor with a rectangular unit cell of $C_{2z}$ or mirror symmetries, we find that a larger effective mass […]


Continue.. Giant anisotropic band flattening in twisted $Γ$ valley semiconductor bilayers

Giant anisotropic band flattening in twisted $Γ$ valley semiconductor bilayers

Posted by klaurent Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Huan Wang, Zhaochen Liu, Yadong Jiang, Jing Wang, | Summary: We propose a theory of anisotropic band flattening in moir’e systems at the $Gamma$ valley. We find that in twisted anisotropic two-dimensional crystals with a rectangular unit cell of $C_{2z}$ or mirror symmetries, a larger effective mass […]


Continue.. Giant anisotropic band flattening in twisted $Γ$ valley semiconductor bilayers

Company for the ultra-high density, ultra-short period sub-Earth GJ 367 b: discovery of two additional low-mass planets at 11.5 and 34 days

Posted by klaurent MIT

Kavli Affiliate: George R. Ricker | First 5 Authors: Elisa Goffo, Davide Gandolfi, Jo Ann Egger, Alexander J. Mustill, Simon H. Albrecht | Summary: GJ 367 is a bright (V $approx$ 10.2) M1 V star that has been recently found to host a transiting ultra-short period sub-Earth on a 7.7 hr orbit. With the aim […]


Continue.. Company for the ultra-high density, ultra-short period sub-Earth GJ 367 b: discovery of two additional low-mass planets at 11.5 and 34 days

Recent Advances in Metasurface Design and Quantum Optics Applications with Machine Learning, Physics-Informed Neural Networks, and Topology Optimization Methods

Posted by klaurent Delft

Kavli Affiliate: Simon Groblacher | First 5 Authors: Wenye Ji, Jin Chang2, He-Xiu Xu, Jian Rong Gao, Simon Gröblacher | Summary: As a two-dimensional planar material with low depth profile, a metasurface can generate non-classical phase distributions for the transmitted and reflected electromagnetic waves at its interface. Thus, it offers more flexibility to control the […]


Continue.. Recent Advances in Metasurface Design and Quantum Optics Applications with Machine Learning, Physics-Informed Neural Networks, and Topology Optimization Methods

A Large and Variable Leading Tail of Helium in a Hot Saturn Undergoing Runaway Inflation

Posted by klaurent MIT

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Michael Gully-Santiago, Caroline V. Morley, Jessica Luna, Morgan MacLeod, Antonija Oklopčić | Summary: Atmospheric escape shapes the fate of exoplanets, with statistical evidence for transformative mass loss imprinted across the mass-radius-insolation distribution. Here we present transit spectroscopy of the highly irradiated, low-gravity, inflated hot Saturn HAT-P-67 b. […]


Continue.. A Large and Variable Leading Tail of Helium in a Hot Saturn Undergoing Runaway Inflation

Photonic chip-based low noise microwave oscillator

Posted by dbos Caltech

Kavli Affiliate: Kerry Vahala | First 5 Authors: Igor Kudelin, William Groman, Qing-Xin Ji, Joel Guo, Megan L. Kelleher | Summary: Numerous modern technologies are reliant on the low-phase noise and exquisite timing stability of microwave signals. Substantial progress has been made in the field of microwave photonics, whereby low noise microwave signals are generated […]


Continue.. Photonic chip-based low noise microwave oscillator