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The MagAO-X instrument is an upgrade of the Magellan AO system that will introduce extreme adaptive optics capabilities for high-contrast imaging at visible and near-infrared wavelengths. A central component of this system is a…

Instrumentation and Methods for Astrophysics · Physics 2018-07-13 Kyle Van Gorkom , Kelsey L. Miller , Jared R. Males , Olivier Guyon , Alexander T. Rodack , Jennifer Lumbres , Justin M. Knight

We comment on a recently published paper, Phys. Rev. Applied 9, 014028 (2018), which presents frequency-tuning mechanisms for dielectric resonators and demonstrates their potential application to axion haloscopes. One of the schemes…

Instrumentation and Detectors · Physics 2018-12-10 Jinsu Kim , SungWoo Youn , Junu Jeong , Yannis K. Semertzidis

We present a performance analysis of the DiskMass Survey. The survey uses collisionless tracers in the form of disk stars to measure the surface-density of spiral disks, to provide an absolute calibration of the stellar mass-to-light ratio,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Matthew A. Bershady , Marc A. W. Verheijen , Kyle B. Westfall , David R. Andersen , Rob A. Swaters , Thomas Martinsson

Cosmological simulations indicate that cold dark matter (CDM) halos should be triaxial. Verifying observationally this theoretical prediction is, however, less than straightforward because the assembly of galaxies is expected to modify the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Stelios Kazantzidis , Mario G. Abadi , Julio F. Navarro

We analyze the Axion Electrodynamics in a two-dimensional slab of finite width $L$ containing a homogeneous and isotropic dielectric medium with constant permittivity and permeability. We start from the known decomposition of modes in the…

High Energy Physics - Theory · Physics 2024-11-25 Iver Brevik , Masud Chaichian , Amedeo M. Favitta

The standard model axion seesaw Higgs portal inflation (SMASH) model is a well motivated, self-contained description of particle physics over a range of energy scales that predicts axion dark matter particles to exist within the mass range…

High Energy Physics - Experiment · Physics 2022-07-12 Aaron P. Quiskamp , Ben T. McAllister , Paul Altin , Eugene N. Ivanov , Maxim Goryachev , Michael E. Tobar

The ADMX collaboration gathered data for its Run 1A axion dark matter search from January to June 2017, scanning with an axion haloscope over the frequency range 645-680 MHz (2.66-2.81 ueV in axion mass) at DFSZ sensitivity. The resulting…

Based on a recent claim [Phys. Rev. Lett. 116, 127203 (2016)] that electron vortex can be used to image magnetism at the nanoscale in elastic scattering experiments, using transmission electron microscopy, a comprehensive computational…

Materials Science · Physics 2016-11-23 Alexander Edström , Axel Lubk , Ján Rusz

The development of a directional, small-divergence, and short-duration picosecond x-ray probe beam with an energy greater than 50 keV is desirable for high energy density science experiments. We therefore explore through particle-in-cell…

Plasma Physics · Physics 2016-03-23 N. Lemos , J. L. Martins , F. S. Tsung , J. L. Shaw , K. A. Marsh , F. Albert , B. B. Pollock , C. Joshi

Magnetic light and matter interactions are generally too weak to be detected, studied and applied technologically. However, if one can increase the magnetic power density of light by several orders of magnitude, the coupling between…

Mesoscale and Nanoscale Physics · Physics 2019-01-23 Nicolas Bonod , Sebastien Bidault , Geoffrey W. Burr , Mathieu Mivelle

This manuscript presents a novel method for characterizing the permittivities of low-loss dielectric slabs in sub-terahertz (sub-THz) frequencies, specifically above 100 GHz using a quasi-optical system. The algorithm is introduced with…

Optics · Physics 2024-09-06 Bing Xue , Katsuyuki Haneda , Clemens Icheln , Juha Tuomela

The dark photon is a well-motivated ultralight dark-matter candidate that may couple to the Standard Model through kinetic mixing. We search for dark-photon dark matter in the mass range $m_{A'}c^2 =…

High Energy Physics - Phenomenology · Physics 2026-02-27 Joel Barir , Itay M. Bloch , Yair Goldszeft , Gal Goldstein , Constantine Feinberg , Or Katz , Tomer Volansky

The observed rotation curves of dark matter-dominated dwarf galaxies indicate low density cores, contrary to the predictions of CDM models. A possible solution of this problem involves stellar feedback. A strong baryonic wind driven by…

Astrophysics · Physics 2009-11-07 Oleg Y. Gnedin , HongSheng Zhao

We investigate the impact that warm dark matter (WDM) has in terms of 21cm intensity mapping in the post-reionization Universe at z = 3 - 5. We perform hydrodynamic simulations for 5 different models: cold dark matter and WDM with 1,2,3,4…

Cosmology and Nongalactic Astrophysics · Physics 2015-07-31 Isabella P. Carucci , Francisco Villaescusa-Navarro , Matteo Viel , Andrea Lapi

The Madison plasma dynamo experiment (MPDX) is a novel, versatile, basic plasma research device designed to investigate flow driven magnetohydrodynamic (MHD) instabilities and other high-$\beta$ phenomena with astrophysically relevant…

We describe the results of a haloscope axion search performed with an 11.7 T dipole magnet at CERN. The search used a custom-made radio-frequency cavity coated with high-temperature superconducting tape. A set of 27 h of data at a resonant…

Artificial metasurfaces are capable of completely manipulating the phase, amplitude, and polarization of light with high spatial resolutions. The emerging design based on high-index and low-loss dielectrics has led to the realization of…

Dark matter (DM) direct detections are investigated for models with the following properties: isospin-violating couplings, exothermic scatterings, and/or a light mediator, with the aim to reduce the tension between the CDMS-Si positive…

High Energy Physics - Phenomenology · Physics 2017-10-06 Chao-Qiang Geng , Da Huang , Chun-Hao Lee

The dark (or hidden) photon is a massive U(1) gauge boson theorized as a dark force mediator and as a dark matter candidate. Dark photons can be detected with axion cavity haloscopes by probing for a power excess caused by the dark photon's…

High Energy Physics - Phenomenology · Physics 2021-12-01 Sumita Ghosh , Liz Ruddy , Michael J. Jewell , Alexander F. Leder , Reina H. Maruyama

The cavity haloscope provides a highly sensitive method to search for dark matter axions in the microwave regime. Experimental attempts to enhance the sensitivity have focused on improving major aspects, such as producing strong magnetic…

High Energy Physics - Experiment · Physics 2022-06-01 Junu Jeong , SungWoo Youn , Sungjae Bae , Dongok Kim , Younggeun Kim , Yannis K. Semertzidis