Anisotropies in Cosmological 21 cm Background by Oscillons/I-balls of Ultra-light Axion-like Particle

Posted by klaurent Tokyo

Kavli Affiliate: Masahiro Kawasaki | First 5 Authors: Masahiro Kawasaki, Kazuyoshi Miyazaki, Kai Murai, Hiromasa Nakatsuka, Eisuke Sonomoto | Summary: Ultra-light axion-like particle (ULAP) with mass $m sim 10^{-22} ~mathrm{eV}$ has recently been attracting attention as a possible solution to the small-scale crisis. ULAP forms quasi-stable objects called oscillons/I-balls, which can survive up to a […]


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A background-free optically levitated charge sensor

Posted by dbos Stanford

Kavli Affiliate: Giorgio Gratta | First 5 Authors: Nadav Priel, Alexander Fieguth, Charles P. Blakemore, Emmett Hough, Akio Kawasaki | Summary: Optically levitated macroscopic objects are a powerful tool in the field of force sensing, owing to high sensitivity, absolute force calibration, environmental isolation and the advanced degree of control over their dynamics that have […]


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Note on the absence of the second clock effect in Weyl gauge theories of gravity

Posted by klaurent Cambridge

Kavli Affiliate: Anthony Lasenby | First 5 Authors: Michael Hobson, Anthony Lasenby, , , | Summary: We reconsider the status of the so-called second clock effect in Weyl gauge theories of gravity, which are invariant both under local Poincar’e transformations and local changes of scale. In particular, we revisit and extend our previous demonstration that […]


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Earth as a transducer for axion dark-matter detection

Posted by klaurent Stanford

Kavli Affiliate: Peter W. Graham | First 5 Authors: Ariel Arza, Michael A. Fedderke, Peter W. Graham, Derek F. Jackson Kimball, Saarik Kalia | Summary: We demonstrate that ultralight axion dark matter with a coupling to photons induces an oscillating global terrestrial magnetic field signal in the presence of the background geomagnetic field of the […]


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EUSO-SPB2 Telescope Optics and Testing

Posted by klaurent Chicago

Kavli Affiliate: Angela V. Olinto | First 5 Authors: Viktoria Kungel, Randy Bachman, Jerod Brewster, Madeline Dawes, Julianna Desiato | Summary: The Extreme Universe Space Observatory – Super Pressure Balloon (EUSO-SPB2) mission will fly two custom telescopes that feature Schmidt optics to measure v{C}erenkov- and fluorescence-emission of extensive air-showers from cosmic rays at the PeV […]


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Ultrafast time- and angle-resolved photoemission spectroscopy with widely tunable probe photon energy of 5.3-7.0 eV for investigating dynamics of three-dimensional materials

Posted by klaurent Peking

Kavli Affiliate: Feng Yuan | First 5 Authors: Changhua Bao, Haoyuan Zhong, Shaohua Zhou, Runfa Feng, Yuan Wang | Summary: Time- and angle-resolved photoemission spectroscopy (TrARPES) is a powerful technique for capturing the ultrafast dynamics of charge carriers and revealing photo-induced phase transitions in quantum materials. However, the lack of widely tunable probe photon energy, […]


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The Early Dark Sector, the Hubble Tension, and the Swampland

Posted by klaurent Chicago

Kavli Affiliate: Wayne Hu | First 5 Authors: Evan McDonough, Meng-Xiang Lin, J. Colin Hill, Wayne Hu, Shengjia Zhou | Summary: We consider the interplay of the Early Dark Energy (EDE) model, the Swampland Distance Conjecture (SDC), and cosmological parameter tensions. EDE is a proposed resolution of the Hubble tension relying upon a near-Planckian scalar […]


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Cluster cosmology with anisotropic boosts: Validation of a novel forward modeling analysis and application on SDSS redMaPPer clusters

Posted by klaurent Tokyo

Kavli Affiliate: Masahiro Takada | First 5 Authors: Youngsoo Park, Tomomi Sunayama, Masahiro Takada, Yosuke Kobayashi, Hironao Miyatake | Summary: We present a novel analysis for cluster cosmology that fully forward models the abundances, weak lensing, and the clustering of galaxy clusters. Our analysis notably includes an empirical model for the anisotropic boosts impacting the […]


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Critical Stellar Central Densities Drive Galaxy Quenching in the Nearby Universe

Posted by klaurent Peking

Kavli Affiliate: Yingjie Peng | First 5 Authors: Bingxiao Xu, Yingjie Peng, , , | Summary: We study the structural and environmental dependence of the star formation on the plane of stellar mass versus central core density ($Sigma_{rm 1 kpc}$) in the nearby universe. We study the central galaxies in the sparse environment and find […]


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