JIangfeng Du: Spin-based quantum computing in solids

Wednesday, September 5, 2012 12:00 pm - 1:00 pm EDT (GMT -04:00)

JIangfeng Du, University of Science and Technology, China

Abstract

In the past decade, there has been tremendous progress in the development of the quantum computation, especially in solid-state quantum computing. The quantum information storage, the precise manipulation of quantum bits, the transmission of quantum information and quantum bit high efficiency measurement have been a great development. For example, in quantum dots, nuclear magnetic resonance, electron paramagnetic resonance, superconductivity qubits and so on. But most of the systems are still distance from practical quantum computation tasks. Thus it is necessary to research different quantum systems and combine them together to seek a possible way for scalable quantum computation proposal. Spin plays an important role among lots of proposals and is one of the best way for practical quantum computation.

Herein, we mainly focus on the basic theory and experiment fields of quantum computations which base on spins in solid state. We concern on several respects such as decoherence regime, dynamical decoupling methods for suppressing the noise induced by the environment, the initialization of the quantum spin states, high fidelity quantum operations and readout, the entanglement of multiqubits and seek possible methods for scalable quantum computation.