Experimental characterization of a telecommunications-band quantum controlled-not gate

Monika Patel; Joseph B. Altepeter; Matthew A. Hall; Milja Medic; Prem Kumar

doi:10.1109/JSTQE.2009.2025704

Experimental characterization of a telecommunications-band quantum controlled-not gate

Monika Patel^*, Joseph B. Altepeter, Matthew A. Hall, Milja Medic, Prem Kumar

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The quantum controlled-not gate is an example of the maximally entangling gate, which is a broad class of operations that are necessary for scalable linear optics quantum computation. Here, we characterize a telecommunications- wavelength (1550 nm) quantum controlled- not gate, and for the first time, experimentally bound its process fidelity by measuring its operation in two complementary polarization bases. The gates final process fidelity F is given by 91% ≤ F ≤ 95%.

Original language	English (US)
Article number	5325885
Pages (from-to)	1685-1693
Number of pages	9
Journal	IEEE Journal on Selected Topics in Quantum Electronics
Volume	15
Issue number	6
DOIs	https://doi.org/10.1109/JSTQE.2009.2025704
State	Published - Nov 2009

Keywords

Controlled-not (cnot)
Entangling gate
Process tomography

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/JSTQE.2009.2025704

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title = "Experimental characterization of a telecommunications-band quantum controlled-not gate",

abstract = "The quantum controlled-not gate is an example of the maximally entangling gate, which is a broad class of operations that are necessary for scalable linear optics quantum computation. Here, we characterize a telecommunications- wavelength (1550 nm) quantum controlled- not gate, and for the first time, experimentally bound its process fidelity by measuring its operation in two complementary polarization bases. The gates final process fidelity F is given by 91% ≤ F ≤ 95%.",

keywords = "Controlled-not (cnot), Entangling gate, Process tomography",

author = "Monika Patel and Altepeter, {Joseph B.} and Hall, {Matthew A.} and Milja Medic and Prem Kumar",

note = "Funding Information: Manuscript received February 20, 2009; revised May 18, 2009. First published November 10, 2009; current version published December 3, 2009. This work was supported in part by Defense Advanced Research Projects Agency (DARPA) under Grant W31P4Q-08-1-0006. The work of M. A. Hall was supported by the National Science Foundation (NSF) Integrative Graduate Education and Research Traineeship (IGERT) Fellowship under Grant DGE-0801685.",

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doi = "10.1109/JSTQE.2009.2025704",

language = "English (US)",

volume = "15",

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AU - Patel, Monika

AU - Altepeter, Joseph B.

AU - Hall, Matthew A.

AU - Medic, Milja

AU - Kumar, Prem

N1 - Funding Information: Manuscript received February 20, 2009; revised May 18, 2009. First published November 10, 2009; current version published December 3, 2009. This work was supported in part by Defense Advanced Research Projects Agency (DARPA) under Grant W31P4Q-08-1-0006. The work of M. A. Hall was supported by the National Science Foundation (NSF) Integrative Graduate Education and Research Traineeship (IGERT) Fellowship under Grant DGE-0801685.

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N2 - The quantum controlled-not gate is an example of the maximally entangling gate, which is a broad class of operations that are necessary for scalable linear optics quantum computation. Here, we characterize a telecommunications- wavelength (1550 nm) quantum controlled- not gate, and for the first time, experimentally bound its process fidelity by measuring its operation in two complementary polarization bases. The gates final process fidelity F is given by 91% ≤ F ≤ 95%.

AB - The quantum controlled-not gate is an example of the maximally entangling gate, which is a broad class of operations that are necessary for scalable linear optics quantum computation. Here, we characterize a telecommunications- wavelength (1550 nm) quantum controlled- not gate, and for the first time, experimentally bound its process fidelity by measuring its operation in two complementary polarization bases. The gates final process fidelity F is given by 91% ≤ F ≤ 95%.

KW - Controlled-not (cnot)

KW - Entangling gate

KW - Process tomography

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Experimental characterization of a telecommunications-band quantum controlled-not gate

Abstract

Keywords

ASJC Scopus subject areas

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