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Chemistry

Research project: Kuprov: Decoherence-free subspaces in large quantum spin systems

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This is a theoretical project exploring the unusual property of large interacting spin systems - the existence of multiple states that are immune to the external noise and show lifetimes several orders of magnitude longer than those commonly found in magnetic resonance spectroscopy. Subspaces containing these states may be used to store DNP hyperpolarization and facilitate MRI experiments as well as, potentially, as memory registers for quantum information processing devices.

We have recently developed theoretical and computational approaches for the identification of long-lived states in large spin systems. This project will conduct a survey of commercially available molecules with large decoherence-free subspaces, predict new chemical structures and use the best of the resulting structures to facilitate NMR, MRI and DNP experiments.

The project will likely lead to the identification of simple biocompatible spin systems possessing significant numbers (between 3 and 10 states were found in preliminary calculations) of decoherence-free states. The methods for long-term storage of magnetization in these states will be developed using Optimal Control theory and implemented into user-friendly pulse sequences for practical applications on NMR, ESR and MRI instruments.

For PhD opportunites in this project contact Ilya Kuprov  or iMR.CDT@warwick.ac.uk.

The Centre for Doctoral Training in Integrated Magnetic Resonance (IMR) is a collaboration between researchers at the Universities of Warwick, St Andrews, Southampton, Aberdeen and Nottingham.

Related research groups

Computational Systems Chemistry
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