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arXiv · 0710.3307

The theory of the "0.7 anomaly" in quantum point contacts

Yigal Meir
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Abstract

The phenomenology of the "0.7 anomaly" in quantum point contacts is fully explained in terms of a quasi-localized state, which forms as the point contact opens up. Detailed numerical calculations within spin-density functional theory indeed con rm the emergence of such a state. Quantitative calculations of the conductance and the noise are obtained using a model based on these observations, and are in excellent agreement with existing experimental observations.

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Yigal Meir. 2007-10-17. The theory of the "0.7 anomaly" in quantum point contacts. https://doi.org/10.1088/0953-8984%2F20%2F16%2F164208

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