Das, Ranabir and Mahesh, TS and Kumar, Anil (2003) Efficient quantum-state tomography for quantum-information processing using a two-dimensional Fourier-transform technique. In: Physical Review A (Atomic, Molecular, and Optical Physics), 67 (6). pp. 62304-1.
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Abstract
A method of quantum-state tomography for quantum-information processing is described. The method is based on the use of the Fourier-transform technique and involves detection of all the diagonal elements of the density matrix in a one-dimensional experiment and all the off-diagonal elements by a two-dimensional experiment. The method is efficient for a large number of qubits (>5). The proposed method is outlined using a two-qubit system and demonstrated using simulations by tomographing arbitrary complex density matrices of two- and four-qubit systems.
Item Type: | Journal Article |
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Publication: | Physical Review A (Atomic, Molecular, and Optical Physics) |
Publisher: | American Physical Society (APS) |
Additional Information: | Copyright for this article belongs to American Physical Society (APS). |
Department/Centre: | Division of Chemical Sciences > Sophisticated Instruments Facility (Continued as NMR Research Centre) Division of Physical & Mathematical Sciences > Physics |
Date Deposited: | 10 Dec 2004 |
Last Modified: | 19 Sep 2010 04:12 |
URI: | http://eprints.iisc.ac.in/id/eprint/289 |
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