Practical implementations of twirl operations

M S  Anwar; L  Xiao; A J  Short; J A  Jones; D  Blazina; S B  Duckett; H A  Carteret

doi:10.1103/PhysRevA.71.032327

Practical implementations of twirl operations

M S Anwar, L Xiao, A J Short, J A Jones, D Blazina, S B Duckett, H A Carteret

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

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Abstract

Twirl operations, which convert impure singlet states into Werner states, play an important role in many schemes for entanglement purification. In this paper we describe strategies for implementing twirl operations, with an emphasis on methods suitable for ensemble quantum information processors such as nuclear magnetic resonance (NMR) quantum computers. We implement our twirl operation on a general two-spin mixed state using liquid-state NMR techniques, demonstrating that we can obtain the singlet Werner state with high fidelity.

Original language	English
Article number	032327
Pages (from-to)	-
Number of pages	7
Journal	Physical Review A: Atomic, Molecular and Optical Physics
Volume	71
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevA.71.032327
Publication status	Published - Mar 2005

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title = "Practical implementations of twirl operations",

abstract = "Twirl operations, which convert impure singlet states into Werner states, play an important role in many schemes for entanglement purification. In this paper we describe strategies for implementing twirl operations, with an emphasis on methods suitable for ensemble quantum information processors such as nuclear magnetic resonance (NMR) quantum computers. We implement our twirl operation on a general two-spin mixed state using liquid-state NMR techniques, demonstrating that we can obtain the singlet Werner state with high fidelity.",

author = "Anwar, {M S} and L Xiao and Short, {A J} and Jones, {J A} and D Blazina and Duckett, {S B} and Carteret, {H A}",

year = "2005",

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AU - Anwar, M S

AU - Xiao, L

AU - Short, A J

AU - Jones, J A

AU - Blazina, D

AU - Duckett, S B

AU - Carteret, H A

PY - 2005/3

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N2 - Twirl operations, which convert impure singlet states into Werner states, play an important role in many schemes for entanglement purification. In this paper we describe strategies for implementing twirl operations, with an emphasis on methods suitable for ensemble quantum information processors such as nuclear magnetic resonance (NMR) quantum computers. We implement our twirl operation on a general two-spin mixed state using liquid-state NMR techniques, demonstrating that we can obtain the singlet Werner state with high fidelity.

AB - Twirl operations, which convert impure singlet states into Werner states, play an important role in many schemes for entanglement purification. In this paper we describe strategies for implementing twirl operations, with an emphasis on methods suitable for ensemble quantum information processors such as nuclear magnetic resonance (NMR) quantum computers. We implement our twirl operation on a general two-spin mixed state using liquid-state NMR techniques, demonstrating that we can obtain the singlet Werner state with high fidelity.

U2 - 10.1103/PhysRevA.71.032327

DO - 10.1103/PhysRevA.71.032327

M3 - Article (Academic Journal)

SN - 1050-2947

VL - 71

SP - -

JO - Physical Review A: Atomic, Molecular and Optical Physics

JF - Physical Review A: Atomic, Molecular and Optical Physics

IS - 3

M1 - 032327

ER -

Practical implementations of twirl operations

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