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  <span dir="ltr" style="margin-top:0; margin-bottom:0;">It switches with constructive and destructive quantum interference. </span>
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  <br><span dir="ltr" style="margin-top:0; margin-bottom:0;"><a href="https://spectrum.ieee.org/quantum-interference-transistor">https://spectrum.ieee.org/quantum-interference-transistor</a></span>
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