Single-spin measurement by magnetic resonance force microscopy: effects of measurement device, thermal noise, and spin relaxation

Hsi-Sheng Goan; Todd A. Brun

doi:10.1117/12.522234

2 April 2004 Single-spin measurement by magnetic resonance force microscopy: effects of measurement device, thermal noise, and spin relaxation

Hsi-Sheng Goan, Todd A. Brun

Author Affiliations +

Proceedings Volume 5276, Device and Process Technologies for MEMS, Microelectronics, and Photonics III; (2004) https://doi.org/10.1117/12.522234
Event: Microelectronics, MEMS, and Nanotechnology, 2003, Perth, Australia

Abstract

Single-spin measurement is an extremely important challenge, and necessary for the future successful development of several recent spin-based proposals for quantum information processing. Magnetic resonance force microscopy (MRFM) has been suggested as a promising technique for single-spin detection. We discuss how to read out the quantum state of a single spin using the MRFM technique based on cyclic adiabatic inversion (CAI). We include, in our analysis, a measurement device (an optical interferometer) to monitor the position of the cantilever, which then provides us with information of the spin state. We consider various relevant sources of noise and taken into account the effect of spin relaxation on the single-spin detection scheme. We also present a realistic continuous measurement model, and discuss the approximations and conditions to achieve a quantum non-demolition measurement of a single spin by MRFM. Finally we will present some simulation results for the single-spin measurement process.

Citation Download Citation

Hsi-Sheng Goan and Todd A. Brun "Single-spin measurement by magnetic resonance force microscopy: effects of measurement device, thermal noise, and spin relaxation", Proc. SPIE 5276, Device and Process Technologies for MEMS, Microelectronics, and Photonics III, (2 April 2004); https://doi.org/10.1117/12.522234

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available