A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä

Pure steered states of Einstein-Podolsky-Rosen steering




TekijätNguyen H Chau, Luoma Kimmo

KustantajaAMER PHYSICAL SOC

Julkaisuvuosi2017

JournalPhysical Review A

Tietokannassa oleva lehden nimiPHYSICAL REVIEW A

Lehden akronyymiPHYS REV A

Artikkelin numeroARTN 042117

Vuosikerta95

Numero4

Sivujen määrä7

ISSN2469-9926

DOIhttps://doi.org/10.1103/PhysRevA.95.042117


Tiivistelmä
In the Einstein-Podolsky-Rosen experiment, when Alice makes a measurement on her part of a bipartite system, Bob's part is collapsed to, or steered to, a specific ensemble. Moreover, by reading her measurement outcome, Alice can specify which state in the ensemble Bob's system is steered to and with which probability. The possible states that Alice can steer Bob's system to are called steered states. In this work, we study the subset of steered states which are pure after normalization. We illustrate that these pure steered states, if they exist, often carry interesting information about the shared bipartite state. This information content becomes particularly clear when we study the purification of the shared state. Some applications are discussed. These include a generalization of the fundamental lemma in the so-called "all-versus-nothing proof of steerability" for systems of arbitrary dimension.



Last updated on 2024-26-11 at 15:19