High-homogeneity superconducting magnet system for magnetic resonance approaches to quantum computing

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As classical information processing has shaped today's society, technology and economy through advances in computing and communication, harnessing quantum information will lead to fundamentally more powerful devices and even greater impacts.  The power of quantum information lies in the mathematical structure of quantum mechanics, in which the non-classical concepts of superposition, entanglement and quantum parallelism arise.  Not only are quantum algorithms such as Shor's factoring algorithm more powerful than their classical counterparts, quantum information processing (QIP) is the key to continuing to make computers smaller and faster. Taking the ideas and concepts of quantum information theory and implementing them physically is crucial to the development of quantum technologies that will dominate in the 21st century.The goal of our research is to significantly impact the science and technology of physically realized quantum devices, by developing prototype devices and the quantum control and measurement techniques necessary for QIP.  Our particular focus is on using the particle property of spin to encode quantum information in a robust way.  Realizing spin-based quantum bits (qubits) in solid-state systems offers a technologically attractive path to scalable quantum devices: this approach is reminiscent of (and builds on) the semiconductor electronics industry, and is poised to benefit from cutting edge technologies now being developed based on novel nanostructured materials.  This Research Tools and Instruments Grant will fund a high-homogeneity superconducting magnet system to be incorporated with a low-temperature measurement apparatus. It will enable investigations of magnetic resonance approaches to QIP and quantum device studies.