Chandra/LETGS Studies of the Collisional Plasma in 4U 1626-67

Kavli Affiliate: Norbert S. Schulz | First 5 Authors: Paul B. Hemphill, Norbert S. Schulz, Herman M. Marshall, Deepto Chakrabarty, | Summary: We present an analysis of chandra/LETGS observations of the ultracompact X-ray binary (UCXB) 4U 1626$-$67, continuing our project to analyze the existing Chandra gratings data of this interesting source. The extremely low mass, […]


Continue.. Chandra/LETGS Studies of the Collisional Plasma in 4U 1626-67

Renormalization and non-renormalization of scalar EFTs at higher orders

Kavli Affiliate: Tom Melia | First 5 Authors: Weiguang Cao, Franz Herzog, Tom Melia, Jasper Roosmale Nepveu, | Summary: We renormalize massless scalar effective field theories (EFTs) to higher loop orders and higher orders in the EFT expansion. To facilitate EFT calculations with the R* renormalization method, we construct suitable operator bases using Hilbert series […]


Continue.. Renormalization and non-renormalization of scalar EFTs at higher orders

Improving holographic particle characterization by modeling spherical aberration

Kavli Affiliate: Vinothan Manoharan | First 5 Authors: Caroline Martin, Brian Leahy, Vinothan Manoharan, , | Summary: Holographic microscopy combined with forward modeling and inference allows colloidal particles to be characterized and tracked in three dimensions with high precision. However, current models ignore the effects of optical aberrations on hologram formation. We investigate the effects […]


Continue.. Improving holographic particle characterization by modeling spherical aberration

“Worst-Case” Micro-Lensing in the Identification and Modeling of Lensed Quasars

Kavli Affiliate: Paul Schechter | First 5 Authors: Luke Weisenbach, Paul Schechter, Sahil Pontula, , | Summary: Although micro-lensing of macro-lensed quasars and supernovae provides unique opportunities for several kinds of investigations, it can add unwanted and sometimes substantial noise. While micro-lensing flux anomalies may be safely ignored for some observations, they severely limit others. […]


Continue.. “Worst-Case” Micro-Lensing in the Identification and Modeling of Lensed Quasars

Cetacean Translation Initiative: a roadmap to deciphering the communication of sperm whales

Kavli Affiliate: Robert J. Wood | First 5 Authors: Jacob Andreas, Gašper Beguš, Michael M. Bronstein, Roee Diamant, Denley Delaney | Summary: The past decade has witnessed a groundbreaking rise of machine learning for human language analysis, with current methods capable of automatically accurately recovering various aspects of syntax and semantics – including sentence structure […]


Continue.. Cetacean Translation Initiative: a roadmap to deciphering the communication of sperm whales

Apparent nonlinear damping triggered by quantum fluctuations

Kavli Affiliate: Gary A. Steele | First 5 Authors: Mario F. Gely, Adrián Sanz Mora, Shun Yanai, Rik van der Spek, Daniel Bothner | Summary: Nonlinear damping, the change in damping rate with the amplitude of oscillations plays an important role in many electrical, mechanical and even biological oscillators. In novel technologies such as carbon […]


Continue.. Apparent nonlinear damping triggered by quantum fluctuations

Direct visualization of superselective colloid-surface binding mediated by multivalent interactions

Kavli Affiliate: Liedewij Laan | First 5 Authors: Christine Linne, Daniele Visco, Stefano Angioletti-Uberti, Liedewij Laan, Daniela J. Kraft | Summary: Reliably distinguishing between cells based on minute differences in receptor density is crucial for cell-cell or virus-cell recognition, the initiation of signal transduction and selective targeting in directed drug delivery. Such sharp differentiation between […]


Continue.. Direct visualization of superselective colloid-surface binding mediated by multivalent interactions

Inferring simple but precise quantitative models of human oocyte and early embryo development

Kavli Affiliate: Daniel Needleman | First 5 Authors: Brian D Leahy, Catherine Racowsky, Daniel Needleman, , | Summary: Macroscopic, phenomenological models have proven useful as concise framings of our understandings in fields from statistical physics to economics to biology. Constructing a phenomenological model for development would provide a framework for understanding the complicated, regulatory nature […]


Continue.. Inferring simple but precise quantitative models of human oocyte and early embryo development

Inferring simple but precise quantitative models of human oocyte and early embryo development

Kavli Affiliate: Daniel Needleman | First 5 Authors: Brian D Leahy, Catherine Racowsky, Daniel Needleman, , | Summary: Macroscopic, phenomenological models have proven useful as concise framings of our understandings in fields from statistical physics to economics to biology. Constructing a phenomenological model for development would provide a framework for understanding the complicated, regulatory nature […]


Continue.. Inferring simple but precise quantitative models of human oocyte and early embryo development