Experimental Simulation of Spin Squeezing by Nuclear Magnetic Resonance

Experimental Simulation of Spin Squeezing by Nuclear Magnetic Resonance

We report on the experimental simulation of spin squeezing using a liquid-state nuclear magnetic resonance (NMR) quantum information processor. This was done by identifying the energy levels within the symmetric subspace of a system of n spin-1/2 nuclei with the energy levels of the simulated spin-(n/2) system. The results obtained for our simulations of spin-1 and spin-3/2 systems are consiste...

Plused Nuclear Magnetic Spin Resonance

THEORY: The physics behind NMR/MRI signal production lies in the physics of spin. This section will cover enough aspects of spin to understand the generation of NMR signals. Although this initial spin discussion is inherently quantum mechanical in nature, we will later need to employ some simple principles from thermodynamics and classical dynamics to further describe the art of NMR. These topi...

Pulsed Spin Decoupling in Nuclear Magnetic Resonance

group. The spectra, as shown in Figure 2 , can be semiquantitatively reproduced using the LAOCOON computer program with reduced values for the carbon-proton coupling constant^.^ These calculations are approximate because they do not include the asymmetry introduced by the decoupling field or any relaxation effects. We have performed additional experiments which show that it is not necessary for...

Pulsed Nuclear Magnetic Resonance and Spin Echo

This experiment is an example of magnetic resonance a class of experiments in which very small energy separations (typically 10−7 eV) of quantum mechanical states are determined by measuring the frequency of a sinusoidally varying magnetic field, which induces transitions between the states. Some examples of magnetic resonance experiments are: nuclear magnetic resonance [1, 8], nuclear quadrupo...

Pulsed Nuclear Magnetic Resonance: Spin Echoes