Show simple item record

dc.contributor.advisorDavid G. Cory.en_US
dc.contributor.authorAbutaleb, Mohamed Osamaen_US
dc.contributor.otherMassachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.en_US
dc.date.accessioned2010-08-31T14:35:43Z
dc.date.available2010-08-31T14:35:43Z
dc.date.copyright2010en_US
dc.date.issued2010en_US
dc.identifier.urihttp://hdl.handle.net/1721.1/57778
dc.descriptionThesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.en_US
dc.descriptionCataloged from PDF version of thesis.en_US
dc.descriptionIncludes bibliographical references (p. 81-85).en_US
dc.description.abstractCoherent control is a fundamental challenge in quantum information processing (QIP). Our system of interest employs a local, isolated electron spin to coherently control nuclear spins. Coupled electron/nuclear spins are a promising candidate for QIP: nuclear spins are used for information storage and computation due to their long coherence times, while the electron is used as a spin actuator for initialization, information transfer, control, and readout. This is the first implementation of a local processor using the central qubit architecture. In this work, a robust integrated system for coherent control of these spins is proposed. The system includes a mechanical and cryogenic system for sample handling, cooling, and suspension; computer software for experimental control and optimal control pulse determination; and a custom-designed pulsed electron spin resonance (ESR) spectrometer with digital signal acquisition and processing. The spectrometer enhances and expands past contributions of J. S. Hodges and J. C. Yang, who built a first generation device capable of amplitude modulated control pulses. The new device features improved noise properties, higher power, better carrier and sideband rejection, and a more customizable analysis via digital signal processing. It also implements both amplitude and phase modulation of control pulses. Further, it introduces the ability to address different resonances in the spin system by switching intermediate frequencies while maintaining phase coherence. Our work concludes with a signal-to-noise ratio (SNR) analysis that demonstrates improvement of more than a factor of 15 compared to the earlier device.en_US
dc.description.statementofresponsibilityby Mohamed Osama Abutaleb.en_US
dc.format.extent85 p.en_US
dc.language.isoengen_US
dc.publisherMassachusetts Institute of Technologyen_US
dc.rightsM.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.en_US
dc.rights.urihttp://dspace.mit.edu/handle/1721.1/7582en_US
dc.subjectElectrical Engineering and Computer Science.en_US
dc.titleRF instrumentation and system design for coherent control of anisotropic hyperfine-coupled electron/nuclear spin qubitsen_US
dc.typeThesisen_US
dc.description.degreeS.M.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.en_US
dc.identifier.oclc635536428en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record