Quarkonia in Non-commutative Space

Quarkonium bound states are especially promising candidates to test the probable quantum structure of space-time since they represent a system with a reasonably small characteristic distance. In this contribution, we insert this system in a 3-dimensional rotationally-invariant space which is composed of concentric fuzzy spheres of increasing radius called the fuzzy onion. Our aim is to extract some consequences of the space’s non-trivial structure on the quarkonia’s properties. Abstract Published by the Jagiellonian University 2025 authors