| May 2025 |
| Monday | Tuesday | Wednesday | Thursday | Friday |
| 28 Marcus DuPont, Spherical Bondi accretion in a binary black hole system (12:30 PM - 1:30 PM) | 29 Risa Wechsler, Unveiling the nature of dark matter with small-scale cosmic structure (2:00 PM - 3:15 PM) + Abstract: Joan La Madrid, Comments on Gravity (4:00 PM - 5:30 PM) + Abstract: | 30 Calvin Chen, The Power of Precision Astrometry (10:00 AM - 11:30 AM) + Abstract: , HEP Journal Club (12:30 PM - 1:30 PM) Harikrishnan Ramani, Improving prospects for the direct detection of Higgsino dark matter (2:00 PM - 3:15 PM) + Abstract: | 1 Lyman Page, A New Experiment to Search for QCD Axions as Dark Matter (12:30 PM - 1:30 PM) + Abstract: Lyman Page, Exploring the Birth of the Universe with the CMB (4:00 PM - 5:30 PM) + Abstract: | 2 Calkins (3:30 PM - 4:30 PM) |
| 5 Wenzer Qin, A new way to form supermassive black holes (12:30 PM - 1:30 PM) | 6 Tetyana Pitik, Accretion-Induced Collapse of White Dwarfs: A Pathway to Gamma-Ray Bursts and Heavy Element Nucleosynthesis (2:00 PM - 3:15 PM) + Abstract: | 7 , HEP Journal Club (12:30 PM - 1:30 PM) Howie Haber, RG-stable parameter relations of a scalar field theory in absence of a symmetry (2:00 PM - 3:15 PM) + Abstract: | 8 | 9 Vladimir Rosenhaus, Renormalization Group in wave turbulence (11:10 AM - 12:30 PM) + Abstract: Calkins (3:30 PM - 4:30 PM) |
| 12 | 13 | 14 Sebastian Ellis, Classical and Quantum Detection of Gravitational Waves (11:00 AM - 12:15 PM) + Abstract: , HEP Journal Club (12:30 PM - 1:30 PM) Zach Weiner, Searching for coupled, hyperlight scalars across cosmic history (4:00 PM - 4:30 PM) + Abstract: | 15 | 16 Soichiro Shimamori, Boundary Scattering and Non-invertible Symmetries in 1+1 Dimensions (1:00 PM - 2:00 PM) -- Abstract: Recent studies by Copetti, Córdova and Komatsu have revealed that when non-invertible symmetries are spontaneously broken, the conventional crossing relation of the S-matrix is modified by the effects of the corresponding topological quantum field theory (TQFT). We extend these considerations to (1+1)-dimensional quantum field theories (QFTs) with boundaries. In the presence of a boundary, one can define not only the bulk S-matrix but also the boundary S-matrix, which is subject to a consistency condition known as the boundary crossing relation. We show that when the boundary is weakly-symmetric under the non-invertible symmetry, the conventional boundary crossing relation also receives a modification due to the TQFT effects. As a concrete example of the boundary scattering, we analyze kink scattering in the gapped theory obtained from the Φ(1,3)-deformation of a minimal model. We explicitly construct the boundary S-matrix that satisfies the Ward-Takahashi identities associated with non-invertible symmetries. This talk is based on the collaboration with Satoshi Yamaguchi. |
| 19 | 20 | 21 Louis Hamaide, New insights into optomechanical detection of ultralight dark matter (2:00 PM - 3:00 PM) + Abstract: | 22 | 23 |
| 26 | 27 | 28 , Binary Accretion Discussion (11:00 AM - 12:30 PM) Sebastian Cespedes, Causality Bounds on the Primordial Power Spectrum (2:00 PM - 3:15 PM) + Abstract: | 29 | 30 |