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Journal article

Transforming pure and mixed states using an NMR quantum homogeniser

Abstract:

The universal quantum homogeniser can transform a qubit from any state to any other state with arbitrary accuracy, using only unitary transformations to perform this task. Here we present an implementation of a finite quantum homogeniser using nuclear magnetic resonance (NMR), with a four-qubit system. We compare the homogenisation of a mixed state to a pure state, and the reverse process. After accounting for the effects of decoherence in the system, we find the experimental results to be co...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevA.103.022414

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
ORCID:
0000-0002-8300-9822
More by this author
Institution:
University of Oxford
Department:
PHYSICS
Sub department:
Atomic & Laser Physics
Role:
Author
ORCID:
0000-0003-1862-587X
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review A Journal website
Volume:
103
Article number:
022414
Publication date:
2021-02-11
Acceptance date:
2021-01-26
DOI:
EISSN:
1094-1622
ISSN:
1050-2947
Language:
English
Keywords:
Pubs id:
1131502
Local pid:
pubs:1131502
Deposit date:
2021-02-22

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