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arXiv quant-ph/02100062002-10-01quant-ph

Transient Dynamics in Magnetic Force Microscopy for a Single-Spin Measurement

G. P. Berman, F. Borgonovi, G. V. Lopez, V. I. Tsifrinovich

备注：: 22 pages 2 figures
发表信息：: Phys. Rev. A 68, 012102 (2003)
DOI：: 10.1103/PhysRevA.68.012102

英文摘要：

We analyze a single-spin measurement using a transient process in magnetic force microscopy (MFM) which could increase the maximum operating temperature by a factor of Q (the quality factor of the cantilever) in comparison with the static Stern-Gerlach effect. We obtain an exact solution of the master equation, which confirms this result. We also discuss the conditions required to create a macroscopic Schrodinger cat state in the cantilever.

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