A family of quantum protocols

I Devetek; AW Harrow; AJ Winter

doi:10.1103/PhysRevLett.93.230504

A family of quantum protocols

I Devetek, AW Harrow, AJ Winter

School of Mathematics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

79 Citations (Scopus)

Abstract

We introduce three new quantum protocols involving noisy quantum channels and entangled states, and relate them operationally and conceptually with four well-known old protocols. Two of the new protocols (the mother and father) can generate the other five "child" protocols by direct application of teleportation and superdense coding, and can be derived in turn by making the old protocols "coherent." This gives very simple proofs for two famous old protocols (the hashing inequality and quantum channel capacity) and provides the basis for optimal trade-off curves in several quantum information processing tasks.

Translated title of the contribution	A family of quantum protocols
Original language	English
Pages (from-to)	1 - 4
Number of pages	4
Journal	Physical Review Letters
Volume	93 (23, 230504)
DOIs	https://doi.org/10.1103/PhysRevLett.93.230504
Publication status	Published - Dec 2004

Bibliographical note

Publisher: American Physical Society
Other identifier: IDS Number: 876OY

Access to Document

10.1103/PhysRevLett.93.230504

http://link.aps.org/abstract/PRL/v93/e230504

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AU - Devetek, I

AU - Harrow, AW

AU - Winter, AJ

N1 - Publisher: American Physical Society Other identifier: IDS Number: 876OY

PY - 2004/12

Y1 - 2004/12

N2 - We introduce three new quantum protocols involving noisy quantum channels and entangled states, and relate them operationally and conceptually with four well-known old protocols. Two of the new protocols (the mother and father) can generate the other five "child" protocols by direct application of teleportation and superdense coding, and can be derived in turn by making the old protocols "coherent." This gives very simple proofs for two famous old protocols (the hashing inequality and quantum channel capacity) and provides the basis for optimal trade-off curves in several quantum information processing tasks.

AB - We introduce three new quantum protocols involving noisy quantum channels and entangled states, and relate them operationally and conceptually with four well-known old protocols. Two of the new protocols (the mother and father) can generate the other five "child" protocols by direct application of teleportation and superdense coding, and can be derived in turn by making the old protocols "coherent." This gives very simple proofs for two famous old protocols (the hashing inequality and quantum channel capacity) and provides the basis for optimal trade-off curves in several quantum information processing tasks.

U2 - 10.1103/PhysRevLett.93.230504

DO - 10.1103/PhysRevLett.93.230504

M3 - Article (Academic Journal)

VL - 93 (23, 230504)

SP - 1

EP - 4

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

ER -