PIRSA:08110020

The Toric Code, Perturbed

Kay, A. (2008). The Toric Code, Perturbed. Perimeter Institute. https://pirsa.org/08110020

Kay, Alastair. The Toric Code, Perturbed. Perimeter Institute, Nov. 12, 2008, https://pirsa.org/08110020 

          @misc{ pirsa_PIRSA:08110020,
            doi = {10.48660/08110020},
            url = {https://pirsa.org/08110020},
            author = {Kay, Alastair},
            keywords = {Quantum Information},
            language = {en},
            title = {The Toric Code, Perturbed},
            publisher = {Perimeter Institute},
            year = {2008},
            month = {nov},
            note = {PIRSA:08110020 see, \url{https://pirsa.org}}
          }

Alastair Kay University of London

Talk numberPIRSA:08110020
DOI10.48660/08110020
Collection
Talk Type Scientific Series
Subject

Abstract

By storing quantum information in the degenerate ground state of a Hamiltonian, it is hoped that it can be made quite robust against noise processes. We will examine this situation, with particular emphasis on the Toric code in 2D, and show how adversarial effects, either perturbations to the Hamiltonian or interactions with an environment, destroy the stored information extremely quickly.