Videos

George Booth - A rigorous framework for embedding realistic interacting quantum systems - IPAM UCLA

Presenter
April 1, 2022
Abstract
Recorded 01 April 2022. George Booth of King's College London presents "A rigorous framework for embedding realistic interacting quantum systems" at IPAM's Multiscale Approaches in Quantum Mechanics Workshop. Abstract: We will discuss a recent reformulation of quantum embedding suitable for coupling a fragment of a system with long-range interactions into its environment. Treating these long-range interactions in a practical and efficient way is (I believe) the biggest conceptual and practical limitation of quantum embedding of interacting systems. Current approaches often rely on uncontrolled approximations and lack the systematic improvability to ensure trust and internal checks on the validity of results. The approach will relate to a number of existing methodology in the field, including the embedding of fragments into both mean-field and interacting environments, and detail an approach to systematically fold these interactions with the infinite environment into a finite-size quantum problem. Learn more online at: http://www.ipam.ucla.edu/programs/workshops/workshop-i-multiscale-approaches-in-quantum-mechanics/?tab=schedule