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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Realizing symmetry-protected topological phases in a spin-1/2 chain with next-nearest neighbor hopping on superconducting qubits

Posted by klaurent Caltech

Kavli Affiliate: Austin J. Minnich | First 5 Authors: Adrian T. K. Tan, Shi-Ning Sun, Ruslan N. Tazhigulov, Garnet Kin-Lic Chan, Austin J. Minnich | Summary: The realization of novel phases of matter on quantum simulators is a topic of intense interest. Digital quantum computers offer a route to prepare topological phases with interactions that […]


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TECM: Transfer Evidential C-means Clustering

Posted by klaurent Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Lianmeng Jiao, Feng Wang, Zhun-ga Liu, Quan Pan, | Summary: Clustering is widely used in text analysis, natural language processing, image segmentation, and other data mining fields. As a promising clustering algorithm, the evidential c-means (ECM) can provide a deeper insight on the data by allowing an […]


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TECM: Transfer Learning-based Evidential C-Means Clustering

Posted by klaurent Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Lianmeng Jiao, Feng Wang, Zhun-ga Liu, Quan Pan, | Summary: As a representative evidential clustering algorithm, evidential c-means (ECM) provides a deeper insight into the data by allowing an object to belong not only to a single class, but also to any subset of a collection of […]


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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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Atomic fluctuations lifting the energy degeneracy in Si/SiGe quantum dots

Posted by klaurent Delft

Kavli Affiliate: Giordano Scappucci | First 5 Authors: Brian Paquelet Wuetz, Merritt P. Losert, Sebastian Koelling, Lucas E. A. Stehouwer, Anne-Marije J. Zwerver | Summary: Electron spins in Si/SiGe quantum wells suffer from nearly degenerate conduction band valleys, which compete with the spin degree of freedom in the formation of qubits. Despite attempts to enhance […]


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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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