Superconductivity in tin telluride films grown by molecular beam epitaxy

Kavli Affiliate: David A. Muller | First 5 Authors: Antonio Gonzalez, Samuel J. Poage, Bernardo Langa, Jr., Deepak Sapkota, Salva Salmani-Rezaie | Summary: The intersection of superconductivity and ferroelectricity hosts a wide range of exotic quantum phenomena. Here, we report on the observation of superconductivity in high-quality tin telluride films grown by molecular beam epitaxy. […]


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The dearth of high-mass hydrogen-atmosphere metal-polluted white dwarfs within 40 pc

Kavli Affiliate: David Charbonneau | First 5 Authors: Tim Cunningham, Pier-Emmanuel Tremblay, Mairi O’Brien, Evan B. Bauer, Mark A. Hollands | Summary: We present a population synthesis model which addresses the different mass distributions of the metal-polluted and non-metal-polluted hydrogen-atmosphere white dwarfs identified in volume-limited samples. Specifically, metal-pollution has been observed to be rare in […]


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The role of effective mass and long-range interactions in the band-gap renormalization of photo-excited semiconductors

Kavli Affiliate: Scott K. Cushing | First 5 Authors: Cian C. Reeves, Scott K. Cushing, Vojtech Vlcek, , | Summary: Understanding how to control changes in electronic structure and related dynamical renormalizations by external driving fields is the key for understanding ultrafast spectroscopy and applications in electronics. Here we focus on the band-gap’s modulation by […]


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Hints of Primordial Magnetic Fields at Recombination and Implications for the Hubble Tension

Kavli Affiliate: Tom Abel | First 5 Authors: Karsten Jedamzik, Levon Pogosian, Tom Abel, , | Summary: Primordial Magnetic Fields (PMFs), long studied as potential relics of the early Universe, accelerate the recombination process and have been proposed as a possible way to relieve the Hubble tension. However, previous studies relied on simplified toy models. […]


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Optimal sensing on an asymmetric exceptional surface

Kavli Affiliate: Birgitta Whaley | First 5 Authors: Robert L. Cook, Liwen Ko, K. Birgitta Whaley, , | Summary: We study the connection between exceptional points (EPs) and optimal parameter estimation, in a simple system consisting of two counter-propagating traveling wave modes in a microring resonator. The unknown parameter to be estimated is the strength […]


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Frequency-resolved time lags due to X-ray disk reprocessing in AGN

Kavli Affiliate: Erin Kara | First 5 Authors: Christos Panagiotou, Iossif Papadakis, Erin Kara, Marios Papoutsis, Edward M. Cackett | Summary: Over the last years, a number of broadband reverberation mapping campaigns have been conducted to explore the short-term UV and optical variability of nearby AGN. Despite the extensive data collected, the origin of the […]


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