Warsaw Quantum Computing Group

We invite you to an online-only Episode LXXVII
of Warsaw Quantum Computing Group meetup!

"Quantum Computing for Quantum Gravity"

Grzegorz Czelusta

7.05.2026, 18:00 CEST

Video recording

Organized by Fundacja Quantum AI i QPoland

Abstract:

The pursuit of a consistent quantum theory of gravity remains one of the most profound challenges in theoretical physics. Loop Quantum Gravity (LQG) provides a non-perturbative framework in which the fabric of space is described by superpositions of spin network states, SU(2) gauge invariant graphs, that encode quantum geometry at the Planck scale. However, the computational complexity of these states has long hindered the exploration of realistic and highly complex configurations.

This talk discusses the application of quantum computing to overcome these limitations, enabling the simulation and analysis of increasingly intricate quantum gravitational systems. A general framework is introduced for the construction of quantum circuits corresponding to four-valent spin networks with two-dimensional intertwiner Hilbert spaces (“qubits of space”). By integrating quantum computing, tensor networks, and LQG, this work demonstrates that hybrid computational approaches can significantly extend the tractable frontier of quantum gravity research, opening new pathways for simulating and probing Planck-scale physics.

Furthermore, beyond serving as a computational tool, this approach offers new insights into the quantum informational structure of quantum gravity states.

BIO prelegenta:

Grzegorz Czelusta is a PhD graduate of the Faculty of Physics, Astronomy and Applied Computer Science at Jagiellonian University. His doctoral research focused on quantum computation in the context of quantum gravity. In addition, he works on applications of quantum machine learning to satellite-based Earth observation.

He is currently involved in a project aimed at developing a quantum computer based on ion-trap technology, and he has also worked in the field of cryptography. Beyond his research activities, he is actively engaged in science communication and outreach.