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Related Experiment Video

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Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section

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Creating order from random fluctuations in small spin ensembles.

R Budakian¹, H J Mamin, B W Chui

¹IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, CA 95120, USA. budakian@us.ibm.com

Science (New York, N.Y.)

|January 22, 2005

Summary

Researchers harnessed statistical spin fluctuations to create spin order using a magnetic resonance force microscope. This spin order can be stored for 30 seconds and then read out.

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Area of Science:

Physics
Quantum Mechanics
Materials Science

Background:

Statistical fluctuations in electron spins are inherent in small ensembles.
Controlling and utilizing these fluctuations for ordered spin states is challenging.

Purpose of the Study:

To demonstrate methods for creating and controlling spin order from natural spin fluctuations.
To investigate the storage and readout capabilities of the created spin order.

Main Methods:

Utilized a magnetic resonance force microscope (MRFM) to interact with electron spins.
Employed two distinct techniques: selective capture of transient spin order and real-time feedback rectification of spin fluctuations.

Main Results:

Successfully created spin order by harnessing statistical fluctuations in electron spin ensembles.
Demonstrated two novel methods for spin hyperpolarization and fluctuation rectification.
Achieved storage of the created spin order for approximately 30 seconds (longitudinal relaxation time).

Conclusions:

Spin order can be actively generated and controlled from inherent statistical spin fluctuations.
The developed methods offer new pathways for manipulating spin states at the nanoscale.
The ability to store and read out spin order has implications for quantum information processing and sensing.