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Observations of Quantum Dynamics by Solution-State NMR Spectroscopy

M. A. Pravia·E. Fortunato·Y. Weinstein·M. D. Price·G. Teklemariam·R. J. Nelson·Y. Sharf·S. Somaroo·C. H. Tseng·T. F. Havel·D. G. Cory
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Abstract

NMR is emerging as a valuable testbed for the investigation of foundational questions in quantum mechanics. The present paper outlines the preparation of a class of mixed states, called pseudo-pure states, that emulate pure quantum states in the highly mixed environment typically used to describe solution-state NMR samples. It also describes the NMR observation of spinor behavior in spin 1/2 nuclei, the simulation of wave function collapse using a magnetic field gradient, the creation of entangled (or Bell) pseudo-pure states, and a brief discussion of quantum computing logic gates, including the Quantum Fourier Transform. These experiments show that liquid-state NMR can be used to demonstrate quantum dynamics at a level suitable for laboratory exercises.

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M. A. Pravia, E. Fortunato, Y. Weinstein, M. D. Price, G. Teklemariam, R. J. Nelson, Y. Sharf, S. Somaroo, C. H. Tseng, T. F. Havel, D. G. Cory. 1999-06-18. Observations of Quantum Dynamics by Solution-State NMR Spectroscopy. https://arxiv.org/abs/quant-ph/9905061

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