PIRSA:15110080

Long-range entangled many-body states

Haah, J. (2015). Long-range entangled many-body states. Perimeter Institute. https://pirsa.org/15110080

Haah, Jeongwan. Long-range entangled many-body states. Perimeter Institute, Nov. 11, 2015, https://pirsa.org/15110080 

          @misc{ pirsa_PIRSA:15110080,
            doi = {10.48660/15110080},
            url = {https://pirsa.org/15110080},
            author = {Haah, Jeongwan},
            keywords = {Other},
            language = {en},
            title = {Long-range entangled many-body states},
            publisher = {Perimeter Institute},
            year = {2015},
            month = {nov},
            note = {PIRSA:15110080 see, \url{https://pirsa.org}}
          }

Jeongwan Haah

Massachusetts Institute of Technology (MIT) - Department of Physics

Talk number
PIRSA:15110080
Collection
Talk Type
Subject
Abstract

A quantum entanglement is a special kind of correlation; it may yield a strong correlation that is not possible in a classical ensemble, or hide the correlation from all local observables. Especially important is the entanglement that arises from local interactions for its implications in many-body physics and future’s quantum technologies.
I will review a few characteristics of entangled qubits in connection to fault-tolerant quantum information processing, and present a class of long-range entangled many-body states that are ground states of gapped local Hamiltonians on lattices. The class is qualitatively unconventional in many ways, and substantially boosts the richness of many-body entanglement. Implications in mechanisms of localization, renormalization group flow, quantum information storage, and topological order will be discussed.