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Related Experiment Video

Updated: Jun 23, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

Spin field effect transistors with ultracold atoms.

J Y Vaishnav¹, Julius Ruseckas, Charles W Clark

¹Joint Quantum Institute, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.

Physical Review Letters

|May 14, 2009

Summary

Researchers propose novel atomic analogs of the Datta-Das transistor (DDT), a spintronic device. These cold atom schemes mimic electron spin-orbit coupling, offering a potential pathway to realizing the DDT concept.

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Area of Science:

Quantum physics
Spintronics
Atomic physics

Background:

The Datta-Das transistor (DDT) is a foundational concept in spintronics.
The DDT has not been successfully realized using electrons due to experimental challenges.

Purpose of the Study:

To propose and describe two novel schemes for constructing cold atom analogs of the Datta-Das transistor (DDT).
To explore alternative experimental approaches for realizing the DDT concept.

Main Methods:

Utilizing cold atom systems.
Adapting the experimental setup for tripod stimulated Raman adiabatic passage.
Employing laser fields to mimic relativistic spin-orbit coupling.

Main Results:

Two distinct schemes for an atomic DDT are proposed.
The proposed methods leverage established atomic physics techniques.
The schemes offer a viable route to emulate the DDT's spin manipulation principles.

Conclusions:

Cold atom analogs provide a promising platform for realizing the Datta-Das transistor.
These atomic schemes circumvent the difficulties associated with electron-based DDT realization.
The proposed methods could advance spintronic research and applications.