Identifying genuine quantum teleportation
نویسندگان
چکیده
An unknown quantum state can be teleported by using measurements and the maximally entangled Einstein-Podolsky-Rosen (EPR) pair. It is well known that usual nonclassical teleportation cannot simulated seminal classical measure-prepare strategy demonstrated with all states. Herein, we propose a benchmark which reveals not such teleportations are truly mechanical. Rather, there exists more robust classical-teleportation model, includes mimicry as special case, describe certain teleportations. Invalidating general model indicates genuine wherein both pair measurement We prove EPR steering empowers teleportations, rather than entanglement. The readily used in practical experiments for ensuring implemented. results presented herein provide strict criteria implementing quantum-information processing where indispensable.
منابع مشابه
Faithful Teleportation with Genuine Multipartite Entanglement
In this letter we present an explicit protocol B2 for faithfully teleporting an arbitrary 2-qubit state with a class of 4-qubit entangled states. We construct these states in a way different from that of Yeo and Chua [Phys. Rev. Lett. 94, 060502 (2006)]. We will show that the genuine states presented by Yeo and Chua are only a subset of our entangled states. The generalizations of the protocol ...
متن کاملQuantum teleportation.
For continuous variable systems, some protocols for entanglement swapping, establishing entanglement between distant stations through teleportation, testing the efficiency of teleportation with the aid of a third party, and combining teleportation with cloning have been proposed. But no protocol for the explicit teleportation of an entangled continuous variable state exists in the literature, a...
متن کاملQuantum Teleportation
Teleportation the transmission and reconstruction of objects over arbitrary distances is a spectacular process, which actually has been invented by science fiction authors some decades ago. Unbelievable as it seems in 1993 a theoretical scheme has been found by Charles Bennett et al. that predicts the existence of teleportation in reality at least for quantum systems. This scheme exploits some ...
متن کاملQuantum Teleportation
Given a single copy of an unknown quantum state, it is impossible in principle to identify it. The mostly inaccessible information carried by the state is termed quantum information. In contrast to classical information, it cannot be copied or cloned. This concept provides a theoretical underpinning for all aspects of quantum communication and quantum computation. Here we use it to consider qua...
متن کاملTeleportation and dense coding with genuine multipartite entanglement.
We present an explicit protocol E0 for faithfully teleporting an arbitrary two-qubit state via a genuine four-qubit entangled state. By construction, our four-partite state is not reducible to a pair of Bell states. Its properties are compared and contrasted with those of the four-party Greenberger-Horne-Zeilinger and W states. We also give a dense coding scheme D0 involving our state as a shar...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physreva.104.052429