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Shukla, Abhishek
- Ancilla-Assisted Measurements on Quantum Ensembles: General Protocols and Applications in NMR Quantum Information Processing
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Authors
T. S. Mahesh
1,
Abhishek Shukla
1,
Swathi S. Hegde
1,
C. S. Sudheer Kumar
1,
Hemant Katiyar
1,
Sharad Joshi
1,
K. R. Koteswara Rao
2
Affiliations
1 Department of Physics and NMR Research Centre, Indian Institute of Science Education and Research, Pune 411 008, IN
2 Department of Physics and Centre for Quantum Information and Quantum Computation, Indian Institute of Science, Bengaluru 560 012, IN
1 Department of Physics and NMR Research Centre, Indian Institute of Science Education and Research, Pune 411 008, IN
2 Department of Physics and Centre for Quantum Information and Quantum Computation, Indian Institute of Science, Bengaluru 560 012, IN
Source
Current Science, Vol 109, No 11 (2015), Pagination: 1987-1996Abstract
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.Keywords
Contextuality, Expectation Values, Joint Probabilities, Noninvasive Measurement, Process Tomography.References
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