Loop Quantum Gravity

Quantum Mechanics Study of the very small Matter and energy quantized Discrete packets – “quanta”

The Problem Nothing about the structure of matter Nothing about how gravity is generated Global not local Black holes, the big bang

Loop Quantum Gravity Attempts to reconciles QM, GR Alternative to string theory Quantum space is granular, meters Spacetime links connecting these chunks

Loops Links form braided loops Loops are elementary particles

Twists determine charge Each twist 1/3 electron charge Clockwise negative Counter-clockwise positive Electron 3 clockwise twists Positron complement

The Universe Turbulent, fluctuates seconds A giant quantum computer The chunks are qubits Qubits preserve braids

Space does not exist Space is a web of information Humans are mere tangles No fundamental building blocks Matter emerges as network of relationships Loops not in space, loops are space Requires new quantum theory without background

Names Abhay Ashtekar Lee Smolin Carlo Rovelli Sundance Bilson-Thompson Fotini Markopoulou David Kribs