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February 17, 2023 past

GAPP Seminar - Pietro Dona

320 Whitmore

GAPP Seminar - Pietro Dona

GAPP SEMINAR (Gravity, Astroparticle & Particle Physics)
Friday, February 17th
11:00 am, 320 Whitmore
Zoom link: https://psu.zoom.us/j/93737760341?pwd=Qlc4bWFDU0taSHhJK0RHeWMvendHZz09
Meeting: 937 3776 0341
Passcode: 150786

Speaker: Pietro Dona (CSTQ, Marseille)

Title: An Overview of Covariant Loop Quantum Gravity
Abstract: Covariant loop quantum gravity (or spin foam theory) defines a background-independent Lorentzian path integral for gravity. I will review its formulation and highlight its successes, open questions, and physical applications. Numerical calculations have been a major driving force in recent developments. I will overview the leading frameworks, their ingredients, and regimes of validity.

Program

Date Time Speaker Title
2023-02-17 11:00 Pietro Dona An Overview of Covariant Loop Quantum Gravity
About our wordmark
Monica Rincon Ramirez

The IGC wordmark was created by Monica Rincon Ramirez while she was a graduate student at the Institute. Monica enjoys drawing new connections between fundamental theory and observations. Her graduate work included general relativity, loop quantum gravity, and quantum fields in cosmological backgrounds; her thesis focused on effective quantum corrections to gravitational phenomena from spinfoams and applications to cosmology. She received her PhD in 2024.

The wordmark symbolizes the scope of research at the IGC. The base represents quantum gravity, evoking the quantum geometrical picture from spinfoams and loop quantum gravity — approaches studied at the Center for Fundamental Theory. The middle shows galaxies embedded in a smooth surface characteristic of spacetime in general relativity and the larger physical scales studied at the Center for Theoretical and Observational Cosmology. The top curves to an extreme representing a supermassive black hole accompanied by an energetic jet, with a binary black hole pair nearby — the high-energy phenomena studied at the Center for Multimessenger Astrophysics.