Single Spin Readout for the Silicon-Based Quantum Computer
Abstract
This report presents research funded under ARO grant DAAD19-02-1-0310 and conducted during the time period of 07/15/2002 - 07/14/2006. In the course of this research we have made major advancements in the development of Magnetic Resonance Force Microscopy (MRFM) on the way towards its application as a single spin readout for the silicon-based quantum computer. The main achievement of this work is the demonstration of electron spin resonance (ESR) signal detection using MRFM with a sensitivity of better than ten fully polarized electron spins. This exceptional sensitivity was enabled by several advances in ultra sensitive MRFM detection: detection of ESR signal with sensitivity of less than ten fully polarized electron spins, detection of the ESR signal of phosphorus donors in doped Si, demonstration of high magnetic field gradients from rare-earth nanomagnetic probe tips, fabrication of ultrasensitive MRFM force sensing cantilevers, development of light-free cantilever displacement-detection techniques, theoretical understanding of cantilever induced spin relaxation and of the MRFM probe-sample interaction, construction of novel MRFM equipment, and preparation of patterned samples for detection of phosphorus ESR in Si.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 03, 2007
- Accession Number
- ADA471023
Entities
People
- P. C. Hammel
Organizations
- Ohio State University