Europe/Lisbon
Online

Gonçalo Quinta & Rui André, Physics of Information and Quantum Technologies Group - IST (GQ); Center for Astrophysics and Gravitation - IST (RA)
Topological Links and Quantum Entanglement

We present a classification scheme for quantum entanglement based on topological links. This is done by identifying a nonrigid ring to a particle, attributing the act of cutting and removing a ring to the operation of tracing out the particle, and associating linked rings to entangled particles. This analogy naturally leads us to a classification of multipartite quantum entanglement based on all possible distinct links for any given number of rings. We demonstrate the use of this new classification scheme for three and four qubits, and introduce a new class of states inspired by topological symmetries of links.

Additional file

document preview

Gonçalo Quinta and Rui André's slides

To join the session on zoom a password is required. Please subscribe to the mailing list for our regular TQFT Club seminars to receive password information and updates about the mini-workshop.

There will be a 20 minute discussion period / coffee break at the end of this talk.