Exploring fundamental physics and astrophysics with gravitational-wave sources by Ng, Kwan Yeung (Ken)

“…With the current observations, I study how multiple binary black hole (BBH) spin measurements can be combined by hierarchical Bayesian framework to search for ultralight bosons (e.g., axions). This search relies on the process called superradiance, in which boson clouds form around fast spinning black holes (BHs), reduce the BH spins to characteristic values, and lead to an exclusion region in the parameter space of BH mass and spin. …”
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Recommended conventions for reporting results from direct dark matter searches by D. Baxter, I. M. Bloch, E. Bodnia, X. Chen, J. Conrad, P. Di Gangi, J. E. Y. Dobson, D. Durnford, S. J. Haselschwardt, A. Kaboth, R. F. Lang, Q. Lin, W. H. Lippincott, J. Liu, A. Manalaysay, C. McCabe, K. D. Morå, D. Naim, R. Neilson, I. Olcina, M. -C. Piro, M. Selvi, B. von Krosigk, S. Westerdale, Y. Yang, N. Zhou

“…In this paper, we propose recommendations for presenting dark matter direct detection results particularly suited for weak-scale dark matter searches, although we believe the spirit of the recommendations can apply more broadly to searches for other dark matter candidates, such as very light dark matter or axions. To translate experimental data into a final published result, direct detection collaborations must make a series of choices in their analysis, ranging from how to model astrophysical parameters to how to make statistical inferences based on observed data. …”
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Symmetry-protected topological phases with charge and spin symmetries: Response theory and dynamical gauge theory in two and three dimensions by Ye, Peng, Wang, Juven

“…For the SPT examples we consider, the corresponding SET states are described by dynamical topological gauge theory with topological BF term and axionic Θ term in 3D bulk. In addition, the surface of SET is described by the chiral boson theory with quantum anomaly.…”
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Can light dark matter solve the core-cusp problem? by Deng, Heling, Hertzberg, Mark P., Namjoo, Mohammad Hossein, Masoumi, Ali

“…Recently, there has been much interest in light dark matter, especially ultralight axions, as they may provide a solution to the core-cusp problem at the center of galaxies. …”
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