Mitrajyoti Ghosh, The 2-neutrino force and where to find it (2:00 PM - 3:00 PM)

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Yuri Levin, Resonant Friction on discs in galactic nuclei (2:00 PM - 3:00 PM)

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Shu-Heng Shao, Non-invertible Symmetries in Nature (2:00 PM - 3:00 PM)

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Chandralekha Singh, Facilitating Thinking and Learning In and Beyond the Physics Classrooms using Research-based Approaches (4:00 PM)

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Lingfeng Li, Jupiter missions as probes of dark matter (2:00 PM - 3:00 PM)

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, Grad Pheno Journal Club (3:30 PM - 4:30 PM)

Matias Zaldarriaga, Gravitational Waves: Astrophysics with the LIGO/VIRGO data Gravitational Waves: Astrophysics with the LIGO/VIRGO data Gravitational Waves: Astrophysics with the LIGO/VIRGO data (2:00 PM - 3:00 PM)

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Zare, HET Discussion Session (3:00 PM - 5:00 PM)

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Igor Klebanov, Strong Interactions, Confinement and Strings (4:00 PM)

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Sangmin Choi, Holography from Singular Supertranslations on a Black Hole Horizon (2:00 PM - 3:00 PM)

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Blakesley Burkhart, Evidence for Long-range AGN Jet Feedback in the Low Redshift Lyman-alpha Forest (2:00 PM - 3:00 PM)

-- Abstract: The Lyman-α forest is a key diagnostic for the state of diffuse baryons in the intergalactic medium (IGM) and for fundamental cosmological parameters. At high redshift (i.e., z ≥ 2) the Lyman-α forest is observed in optical wavelengths from ground-based observatories and has been used to constrain small-scale cosmic structure, the dark matter distribution, the IGM gas temperature, and the evolution of the ultraviolet ionizing background (UVB) radiation. However, the low redshift (z~0.1) Lyman-α forest, observed from space-based UV instruments such as HST COS, has challenged our theoretical understanding of the Lyman-α forest as the choice of AGN feedback and UVB models both affect the Lyman-α forest statistics. In this talk, I will show how black hole feedback physics can be at least as important (or more!) as the UVB for the neutral gas in the low redshift IGM. The AGN feedback signatures appear in the neutral gas statistics beginning around z~1, thus possibly affecting 21-cm intensity mapping programs that target this redshift range (i.e., HIRAX). These findings herald a significant paradigm shift for cosmological simulations and observations that target the low redshift IGM.

Adrian Tanasa, Tensor models, large N limit and double scaling limit (4:00 PM - 5:00 PM)

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HEP Journal Club (12:30 PM - 1:30 PM)

Patrick Meade, A leptonic vision of the future (2:00 PM - 3:00 PM)

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