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- Barak Shoshany

My research in simple terms: I use math to try to understand what spacetime is made of, and what it looks like when you zoom in all the way.

"There is a theory which states that if ever anyone discovers exactly how to quantize gravity, the universe will instantly disappear and be replaced by a universe in which quantizing gravity is even harder.

There is another theory which states that this has already happened."

Barak Shoshany is a PhD student in the quantum gravity group at Perimeter Institute, under the supervision of faculty member Laurent Freidel. He graduated from the Perimeter Scholars International program with an MSc in theoretical physics. Before coming to Perimeter Institute he obtained a BSc in mathematics & physics from Tel Aviv University (Israel) and did summer internships at Weizmann Institute of Science (Israel) and CERN (Switzerland).

Barak's research involves one of the oldest and hardest unsolved problems in physics: the quest for a theory of quantum gravity, which is the unification of quantum mechanics and general relativity. Finding the true theory of quantum gravity is crucial for a full understanding of many of the most fundamental concepts in physics such as black holes, the origin of the universe, and spacetime itself.

Specifically, Barak is currently working on one of the most promising and elegant candidates for a theory of quantum gravity, called loop quantum gravity. He is particularly interested in studying various aspects of the discrete structure of spacetime predicted by the theory, as well as the problem of dynamics and the Hamiltonian constraint.

In addition to research, Barak is also interested in science communication and outreach. He participates in many outreach activities at Perimeter Institute, and in the past has answered more than 1000 math and physics questions on the popular Q&A website Quora.

- "Loop Gravity and Piecewise-Flat Geometry", Quantum Gravity Day, Perimeter Institute (Canada), November 2017.
- "Metastring Theory and Deformations of Worldsheet CFTs", Weizmann Institute (Israel), August 2016.

- "Thinking Quantum": Lectures on Quantum Theory for High-School Students. Lectures given for ISSYP in July 2017. These lectures present quantum theory in the case of a finite Hilbert space with full mathematical detail at a level suitable for high school students, plus a conceptual overview of some advanced topics including quantum field theory and quantum gravity.

- Teaching assistant, PSI Quantum Field Theory 2, November 2017.
- Mentor, ISSYP, July 2017.
- Teaching assistant, PSI String Theory, February 2017.
- Mentor, ISSYP, July 2016.
- Teaching assistant, PSI Explorations in Cosmology, April 2016.
- Teaching assistant, PSI String Theory, February 2016.
- Teaching assistant, PSI Quantum Field Theory 2, November 2015.
- Mentor, ISSYP, July 2015.

- Superduperstring Theory: Introduction
- Superduperstring Theory: What is Duper Symmetry?
- Superduperstring Theory: Fundamental Equations
- The Spin Latte Formulation of Quantum Gravity (with Matthew VonHippel)
- The E = ER = EPR = EPRL Conjecture

- Follow Barak's public posts on Facebook.
- To download Barak's old notes for Tel Aviv University courses (in Hebrew only), please click here.
- For Barak's D&D campaign, please click here.

©2012 Perimeter Institute for Theoretical Physics