vix.ing · top · new · best · stats

Quantum measurement in two-dimensional conformal field theories: Application to quantum energy teleportation

2017/08/31 by Wu-zhong Guo, Wu-Zhong Guo, Feng-Li Lin · 2 citations
Computer Science · Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Conformal field theory #Conformal map #Mathematical analysis #Mathematics #Open quantum system #Operator (biology) #Physics #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum channel #Quantum correlation #Quantum discord #Quantum information #Quantum mechanics #Quantum teleportation #Superdense coding #Theoretical physics #hep-th #quant-ph

paper · pdf · doi:10.1016/j.physletb.2018.05.007

published in Physics Letters B 782, 61-68 (Elsevier BV) · match the version published on PLB, the main conclusion didn't change, some techincal details can be found in the previous version

openalex publication_date 2018/05/17 · arxiv created 2018/06/20 · arxiv updated 2018/06/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We construct a set of quasi-local measurement operators in 2D CFT, and then use them to proceed the quantum energy teleportation (QET) protocol and show it is viable. These measurement operators are constructed out of the projectors constructed from shadow operators, but further acting on the product of two spatially separated primary fields. They are equivalently the OPE blocks in the large central charge limit up to some UV-cutoff dependent normalization but the associated probabilities of outcomes are UV-cutoff independent. We then adopt these quantum measurement operators to show that the QET protocol is viable in general. We also check the CHSH inequality a la OPE blocks.

Citations