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Ancilla-assisted measurements on quantum ensembles: general protocols and applications in NMR quantum information processing

Mahesh, TS and Shukla, Abhishek and Hegde, Swathi S and Kumar, Sudheer CS and Katiyar, Hemant and Joshi, Sharad and Rao, Koteswara KR (2015) Ancilla-assisted measurements on quantum ensembles: general protocols and applications in NMR quantum information processing. In: CURRENT SCIENCE, 109 (11). pp. 1987-1996.

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Official URL: http://dx.doi.org/10.1016/j.supflu.2015.09.026

Abstract

Quantum ensembles form easily accessible architectures for studying various phenomena in quantum physics, quantum information science and spectroscopy. Here we review some recent protocols for measurements in quantum ensembles by utilizing ancillary systems. We also illustrate these protocols experimentally via nuclear magnetic resonance techniques. In particular, we shall review noninvasive measurements, extracting expectation values of various operators, characterizations of quantum states and quantum processes, and finally quantum noise engineering.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the INDIAN ACAD SCIENCES, C V RAMAN AVENUE, SADASHIVANAGAR, P B #8005, BANGALORE 560 080, INDIA
Keywords: Contextuality; expectation values; joint probabilities; noninvasive measurement; process tomography
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Depositing User: Id for Latest eprints
Date Deposited: 07 Jan 2016 05:17
Last Modified: 23 Oct 2018 14:47
URI: http://eprints.iisc.ac.in/id/eprint/53035

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