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DC Field | Value | Language |
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dc.contributor.author | Shukla, Abhishek | en_US |
dc.contributor.author | Rao, K. Rama Koteswara | en_US |
dc.contributor.author | MAHESH, T. S. | en_US |
dc.date.accessioned | 2019-02-14T05:02:28Z | - |
dc.date.available | 2019-02-14T05:02:28Z | - |
dc.date.issued | 2013-06 | en_US |
dc.identifier.citation | Physical Review A, 87(6),062317. | en_US |
dc.identifier.issn | 1050-2947 | en_US |
dc.identifier.issn | 1094-1622 | en_US |
dc.identifier.uri | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/1663 | - |
dc.identifier.uri | https://doi.org/10.1103/PhysRevA.87.062317 | en_US |
dc.description.abstract | The standard method of quantum state tomography (QST) relies on the measurement of a set of noncommuting observables, realized in a series of independent experiments. Ancilla-assisted QST (AAQST) proposed by Nieuwenhuizen and co-workers [Phys. Rev. Lett. 92, 120402 (2004)] greatly reduces the number of independent measurements by exploiting an ancilla register in a known initial state. In suitable conditions AAQST allows mapping out density matrix of an input register in a single experiment. Here we describe methods for explicit construction of AAQST experiments in multiqubit registers. We also report nuclear magnetic resonance studies on AAQST of (i) a two-qubit input register using a one-qubit ancilla in an isotropic liquid-state system and (ii) a three-qubit input register using a two-qubit ancilla register in a partially oriented system. The experimental results confirm the effectiveness of AAQST in such multiqubit registers. | en_US |
dc.language.iso | en | en_US |
dc.publisher | American Physical Society | en_US |
dc.subject | Ancilla-assisted quantum | en_US |
dc.subject | Multiqubit registers | en_US |
dc.subject | AAQST | en_US |
dc.subject | Multiqubit registers | en_US |
dc.subject | Nieuwenhuizen | en_US |
dc.subject | 2013 | en_US |
dc.title | Ancilla-assisted quantum state tomography in multiqubit registers | en_US |
dc.type | Article | en_US |
dc.contributor.department | Dept. of Physics | en_US |
dc.identifier.sourcetitle | Physical Review A | en_US |
dc.publication.originofpublisher | Foreign | en_US |
Appears in Collections: | JOURNAL ARTICLES |
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