# Group Invariant Quantum Many-Body Scars and Unconventional Electron Pairing

- Institution: CERN
- Speaker: Kiryl Pakrouski
- Year: 2026
- Language: English
- Subjects: Physics
- Source: [CERN](https://videos.cern.ch/record/3025651)
- Licence: [CERN](https://copyright.web.cern)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Many-body scar subspaces decouple from the rest of the Hilbert space which protects the order present in scar states from thermalisation. I will discuss a form of general conditions leading to this phenomenon known as the Group Invariant formalism. As an example, I will show that the Yang's eta-pairing states are many-body scars in many standard condensed matter models such as the 1-orbital Fermi-Hubbard model of spin-1/2 electrons on a lattice. In the 2-orbital case scar states feature strong unconventional superconducting pairing. I will also show that scars themselves may be non-integrable, forming an independent thermal bath with distinct thermal expectation values.

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## Lectures

1. [Group Invariant Quantum Many-Body Scars and Unconventional Electron Pairing](https://invisiblenetwork.ai/learn/cern/3025651/2bcc54c0f240), 58 min (CERN's player)