NMR implementation of a quantum delayed-choice experiment

Soumya Singha Roy, Abhishek Shukla, and T. S. Mahesh
Phys. Rev. A 85, 022109 – Published 7 February 2012

Abstract

We report an experimental demonstration of a quantum delayed-choice experiment via nuclear magnetic resonance techniques. Two spin-1/2 nuclei from each molecule of a liquid ensemble are used as target and ancilla qubits. The circuit corresponding to the recently proposed quantum delayed-choice setup has been implemented with different states of an ancilla qubit. As expected theoretically, our experiments clearly demonstrate continuous morphing of the target qubit between particle-like and wave-like behaviors. The experimental visibility of the interference patterns shows good agreement with theory.

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  • Received 23 December 2011

DOI:https://doi.org/10.1103/PhysRevA.85.022109

©2012 American Physical Society

Authors & Affiliations

Soumya Singha Roy, Abhishek Shukla, and T. S. Mahesh*

  • Department of Physics and NMR Research Center, Indian Institute of Science Education and Research, Pune 411008, India

  • *mahesh.ts@iiserpune.ac.in

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Vol. 85, Iss. 2 — February 2012

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