Finding decoherence free subspaces without process tomography

Quantum process tomography (QPT) is a resource intensive task. We present an experiment in which a 3 dimensional decoherence free subspace is experimentally identified using 36 measurements, instead of the 256 measurements required for QPT.

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Bibliographic Details
Main Authors: Mahler, D. H., Rozema, L. A., Steinberg, A. M.
Format: Conference Proceeding
Language:English
Subjects:
Logic gates
Measurement by laser beam
Optical variables measurement
Photonics
Protocols
Quantum computing
Tomography
Online Access:Request full text
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Description
Summary:Quantum process tomography (QPT) is a resource intensive task. We present an experiment in which a 3 dimensional decoherence free subspace is experimentally identified using 36 measurements, instead of the 256 measurements required for QPT.
ISSN:2160-8989
2160-9004
DOI:10.1364/QELS.2011.QThO2