Events Calendar

 March 2025        
MondayTuesdayWednesdayThursdayFriday
3
Roman Scoccimarro, Pairwise velocities at infinity and the redshift-space power spectrum (12:30 PM - 1:30 PM)

4
JJ Zanazzi, Resonance locking and hot Jupiters (2:00 PM - 3:15 PM)

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5
Giorgio Gratta, nEXO and the quest for neutrino-less double beta decay. (2:00 PM - 3:15 PM)

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6
Janosz Dewberry, Shake, rattle, and roll: waves, tides, and turbulence in stellar and planetary system (1:00 PM - 2:15 PM)

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Giorgio Gratta, Testing Gravity at Ever Shorter Scale: A Trip into Exotic Experimental Physics (4:00 PM - 5:30 PM)

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7
Cara Giovanetti, Cosmology, Astrophysics, and Computation to Advance the Detection Prospects of Dark Matter (10:30 AM - 12:30 PM)

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Calkins (3:30 PM - 4:30 PM)

10
Jesse Liu, Colliding light to measure tau g–2 (12:30 PM - 1:30 PM)

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11
Richard Anantua, A Message from the Horizon Scale by EHT: Deciphering Observational Signatures of Sgr A* and M87* (2:00 PM - 3:15 PM)

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Mathew Calkins, Office Hours (5:30 PM - 6:30 PM)

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

Junwu Huang, Novel string production mechanisms & gravitational wave detectors (2:00 PM - 3:15 PM)

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Mathew Calkins, Office Hours (4:30 PM - 5:30 PM)

13
Jacob Barandes, What's Wrong with Quantum Theory, and How to Fix It (4:00 PM - 5:30 PM)

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14
Calkins (3:30 PM - 4:30 PM)

17
Anthony Pullen, Probing Dusty Galaxies with FIR Surveys (12:30 PM - 1:30 PM)

18
Tony Zhou (host), ACT DR6 Webinar Inbox (11:00 AM - 12:30 PM)

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Carol Cuesta Lazaro, Beyond the Observable: A Machine Learning Perspective on Modern Cosmology (11:15 AM - 12:30 PM)

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19
, HEP Journal Club (12:30 PM - 1:30 PM)

Daniel Harlow, Quantum mechanics and observers for gravity in a closed universe (2:00 PM - 3:15 PM)

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20
21
Tianli Wang, A CFT Dual for Celestial MHV Amplitudes (1:00 PM - 2:00 PM)

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Calkins (3:30 PM - 4:30 PM)

24
, SPRING BREAK; Campus Closed

Rhine Samajdar (2:00 PM - 3:15 PM)

25
, SPRING BREAK; Campus Closed

26
, SPRING BREAK; Campus Closed

27
, SPRING BREAK; Campus Closed

28
, SPRING BREAK; Campus Closed

Calkins (3:30 PM - 4:30 PM)

31
Connor Hainje, A new formula for the area of a triangle, and applications (12:30 PM - 1:30 PM)

Aurelio Amerio, Searching dark matter subhalos among unassociated Fermi-LAT sources (2:00 PM - 3:00 PM)

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William Pannell, Gradient flow and the curvature of theory space (3:10 PM - 4:10 PM)

-- Abstract: The study of monotonicity within renormalization group flow has attracted considerable attention over the years, and gradient flow is the strongest possible version of monotonicity one could demand. After a brief review of monotonicity theorems in general and gradient flow in particular, I will detail the advances in the study of gradient flow in multiscalar systems. Perturbatively, gradient flow can be reduced to a set of constraint equations on the coefficients appearing in the beta function, and using recent results for the generic multiscalar beta function I will show that these constraints are satisfied through all known loop orders. The monotonic quantity appearing in this solution is connected to a weak monotonicity conjecture by Fei, Giombi, Klebanov and Tarnopolsky in d=4-ϵ, suggesting that this conjecture can be strengthened. Interestingly, gradient flow produces a natural metric on the space of couplings, and I will investigate the geometric properties of this metric by writing down its Ricci scalar at next-to-leading order.

1
Bart Ripperda, Are We There Yet? First-principles Modeling of Multimessenger sSignals in the Plasma Universe (11:00 AM - 12:15 PM)

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Raagini Patki, A Novel Bispectrum extracting the Kinematic SZ effect as a Cosmological Probe (2:00 PM - 2:30 PM)

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2
, HEP Journal Club (12:30 PM - 1:30 PM)

Csaba Csaki, Exploring QCD-like dynamics from supersymmetric cousins (2:00 PM - 3:15 PM)

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3
Alessandra Buonanno, Theoretical Challenges in Gravitational-Wave Astronomy (4:00 PM - 5:30 PM)

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4
Dalimil Mazac, Spectral gaps and conformal field theory (10:00 AM - 11:15 AM)

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Calkins (3:30 PM - 4:30 PM)