Abhay Ashtekar

Horizons and Null Infinity: A Fugue in 4 voices

Open Discussion with today's speakers (Ashtekar, Surya, Vieira)

• Abhay Ashtekar Pennsylvania State University

• Sumati Surya Raman Research Institute

• Pedro Vieira Perimeter Institute for Theoretical Physics

Panel Discussion - Cosmological Puzzles (Ashtekar, Brandenberger, Geshnizjani, Sakellariadou, Yazdi)

• Abhay Ashtekar Pennsylvania State University

• Robert Brandenberger McGill University - Department of Physics

• Ghazal Geshnizjani Perimeter Institute for Theoretical Physics

• Mairi Sakellariadou King's College London

• Yasaman Kouchekzadeh Yazdi Dublin Institute For Advanced Studies

Glimpses into Loop Quantum Gravity

A New Perspective on Time Reversal Motivated by Quantum Gravity

Implications of the Quantum Nature Space-time for the Big Bang and Black Holes

Bounce in Loop Quantum Cosmology and its Implications

The BMS group, conservation laws and soft gravitons

The fate of the big bang

• Abhay Ashtekar Pennsylvania State University

• Neil Turok University of Edinburgh

Even a tiny positive cosmological constant casts a long shadow

Even a tiny cosmological constant casts a long shadow

Loop Quantum Cosmology & The Very Early Universe Interplay between theory and Observations