Canonical Quantum Gravity Dynamics

• Thomas Thiemann (FAU Erlangen)

Room: Broward County Main Library Auditorium The purpose of this talk is to give an overview of the development and the various branches of the Hamiltonian approach to quantum gravity, with focus on its dynamics, over the past decades.

The Hilbert Space of de Sitter Quantum Gravity

• Suvrat Raju (ICTS - Bengaluru)

Room: Broward County Main Library Auditorium

Complex Critical Point Methods

• Dongxue Qu (PI - Waterloo)

Room: Broward County Main Library Auditorium

sl2cfoam-next: New developments and applications

• Pietro Dona (CPT - Marseille)

Room: Broward County Main Library Auditorium

Shell Crossings and Shocks during Gravitational Collapse in Effective LQG

• Viqar Hussain (UNB - New Brunswick)

Room: Broward County Main Library Auditorium

Dust Collapse in Effective LQG: Fate of Shocks and Covariance

• Hongguang Liu (FAU - Erlangen)

Room: Broward County Main Library Auditorium

Quantum Oppenheimer-Snyder & Swiss Cheese Model

• Cong Zhang (FAU - Erlangen)

Room: Broward County Main Library Auditorium

Horizons and Null Infinity

• Abhay Ashtekar (PennState)

Room: Broward County Main Library Auditorium While there are many fascinating results on quantum black holes and their evaporation in LQG, the focus tends to be on singularity resolution and the structure of the quantum-extended space-time. Issues of entanglement and recovery of information, that originally sparked interest in black hole evaporation in the wider physics community, have not received the attention they deserve. The goal of this talk is to point directions for future work by the LQG community –especially by researchers who have focused on null surfaces– to address these issues. The talk is based on recent work with Simone Speziale (arXiv:2401.15618 and arXiv:2402.17977).

Physics of Loop Quantum Cosmology: New Answers to Old Questions

• Parampreet Singh (LSU)

Room: Broward County Main Library Auditorium In the last two decades several groups have extensively explored detailed physics of standard LQC. Given the lack of a direct bridge to LQG, the role of quantization ambiguities in physical implications, and how one can generalize beyond standard LQC remain open. After a brief overview, we revisit some old questions in LQC on the quantum bounce, inflationary paradigm and its alternatives, the role of matter, and potential observable signatures, and indicate the way answers may change given some recent developments.

Loop Quantum Gravity and Cosmology

• Edward Wilson-Ewing (University of New Brunswick)

Room: Broward County Main Library Auditorium My talk will review how cosmological observations can be used to test quantum gravity, and also to provide some guidance for future progress. I will discuss how to make contact with cosmological data from loop quantum cosmology, observational constraints on the realization of various cosmological scenarios (such as inflation, ekpyrosis and the matter bounce) within loop quantum cosmology, as well as the connection between loop quantum cosmology and full loop quantum gravity. Finally, I will describe some open problems in cosmology, and present potential mechanisms whereby loop quantum gravity may be able to resolve them.

Corner Symmetry and Quantum Geometry

• Marc Geiller

Room: Broward County Main Library Auditorium

Entanglement aspects of Hawking radiation in evaporating black hole

• Beatriz Elizaga de Navascues

Room: Broward County Main Library Auditorium

Gravitational Path Integral and Entropy

• Eugenia Colafranceschi

Room: Broward County Main Library Auditorium

Effective Spin Foams

• Seth Asante (UNI - Jena)

Room: Broward County Main Library Auditorium

A finite and computable spinfoam model with cosmological constant

• Qiaoyin Pan (FAU - Florida)

Room: Broward County Main Library Auditorium In this talk, I will overview the 4-dimensional Lorentzian spinfoam model with a non-vanishing cosmological constant and discuss its inviting properties, namely (1) that it gives finite spinfoam amplitude for any spinfoam graph, (2) that it is consistent with general relativity with a non-zero cosmological constant at its classical regime and (3) that there exists a feasible, concrete and computable program to calculate physical quantities and quantum corrections with this spinfoam model using stationary phase analysis.

Group Field Theory and Spin Foam Renormalization

• Andreas Pithis (LMU - München)

Room: Broward County Main Library Auditorium

Black holes panel Room: Broward County Main Library Auditorium

Isolated Horizons

• Wojciech Kaminski (University of Warsaw)

Room: Broward County Main Library Auditorium

Towards covariant LQG 2.0

• Florian Girelli (University of Waterloo)

Room: Broward County Main Library Auditorium

CANCELLED - Phenomenology of Modified Loop Quantum Cosmological Models

• Baofei Li

Room: Broward County Main Library Auditorium In recent years, new progress has been made in the direction of the alternative loop cosmological models as compared with standard loop quantum cosmology (LQC). These modified loop quantum cosmological (mLQC) models arise from different quantization prescriptions of the classical Hamiltonian constraint in loop quantum gravity (LQG) for a spatially-flat Friedmann-Lema\^itre-Robertson-Walker (FLRW) universe. In this talk, I will focus on the phenomenology of two of the mLQC models, namely mLQC-I and mLQC-II. The former is also called Dapor-Liegener model in the literature. In particular, I will first summarize the main properties of the background evolution of the mLQC-I/II universes and then concentrate on the results of the primordial power spectra in these two models. Finally, I will address the potential issues which are still to be resolved in these models.

Quantum Geometry of the Light Cone

• Wolfgang Wieland (FAU - Erlangen)

Room: Broward County Main Library Auditorium

Summary and Outlook Panel Room: Broward County Main Library Auditorium

Concluding Remarks

• Abhay Ashtekar

Room: Broward County Main Library Auditorium