Searching for exotic spin-dependent interactions with diamond-based vector magnetometer
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2024-03-19 |
| Journal | Physical review. D/Physical review. D. |
| Authors | A. R. Guo, Runqi Kang, Man Jiao, Xing Rong |
| Institutions | Zhejiang University, University of Science and Technology of China |
Abstract
Section titled “Abstract”We propose a new method to search for exotic spin-spin interactions between electrons and nucleons using a diamond-based vector magnetometer. The vector magnetometer can be constructed from ensembles of nitrogen-vacancy centers along different axes in a diamond. The <a:math xmlns:a=“http://www.w3.org/1998/Math/MathML” display=“inline”><a:mrow><a:mmultiscripts><a:mrow><a:mi mathvariant=“normal”>N</a:mi></a:mrow><a:mprescripts/><a:none/><a:mrow><a:mn>14</a:mn></a:mrow></a:mmultiscripts></a:mrow></a:math> nuclear spins of nitrogen-vacancy centers in the same diamond can be polarized through the dynamic nuclear polarization method to serve as spin sources. With the vector magnetometer, the sought-after exotic interactions can be distinguished from the magnetic dipole-dipole interaction. For the axion-mediated interaction <d:math xmlns:d=“http://www.w3.org/1998/Math/MathML” display=“inline”><d:msub><d:mi>V</d:mi><d:mrow><d:mi>P</d:mi><d:mi>P</d:mi></d:mrow></d:msub></d:math>, new upper bounds of the coupling <f:math xmlns:f=“http://www.w3.org/1998/Math/MathML” display=“inline”><f:mrow><f:mo stretchy=“false”>|</f:mo><f:msubsup><f:mrow><f:mi>g</f:mi></f:mrow><f:mrow><f:mi>P</f:mi></f:mrow><f:mrow><f:mi>e</f:mi></f:mrow></f:msubsup><f:msubsup><f:mrow><f:mi>g</f:mi></f:mrow><f:mrow><f:mi>P</f:mi></f:mrow><f:mrow><f:mi>N</f:mi></f:mrow></f:msubsup><f:mo stretchy=“false”>|</f:mo></f:mrow></f:math> are expected within the force range from 10 nm to <j:math xmlns:j=“http://www.w3.org/1998/Math/MathML” display=“inline”><j:mrow><j:mn>100</j:mn><j:mtext> </j:mtext><j:mtext> </j:mtext><j:mi>μm</j:mi></j:mrow></j:math>. For the <l:math xmlns:l=“http://www.w3.org/1998/Math/MathML” display=“inline”><l:msup><l:mi>Z</l:mi><l:mo>′</l:mo></l:msup></l:math>-mediated interaction <n:math xmlns:n=“http://www.w3.org/1998/Math/MathML” display=“inline”><n:msub><n:mi>V</n:mi><n:mrow><n:mi>A</n:mi><n:mi>A</n:mi></n:mrow></n:msub></n:math>, new upper bounds of the coupling <p:math xmlns:p=“http://www.w3.org/1998/Math/MathML” display=“inline”><p:mo stretchy=“false”>|</p:mo><p:msubsup><p:mi>g</p:mi><p:mi>A</p:mi><p:mi>e</p:mi></p:msubsup><p:msubsup><p:mi>g</p:mi><p:mi>A</p:mi><p:mi>N</p:mi></p:msubsup><p:mo stretchy=“false”>|</p:mo></p:math> are expected within the force range from 10 nm to 1 cm. The new upper bounds for <t:math xmlns:t=“http://www.w3.org/1998/Math/MathML” display=“inline”><t:msub><t:mi>V</t:mi><t:mrow><t:mi>P</t:mi><t:mi>P</t:mi></t:mrow></t:msub></t:math> and <v:math xmlns:v=“http://www.w3.org/1998/Math/MathML” display=“inline”><v:msub><v:mi>V</v:mi><v:mrow><v:mi>A</v:mi><v:mi>A</v:mi></v:mrow></v:msub></v:math> are both expected to be more than 5 orders of magnitude more stringent than existing constraints at the force range of <x:math xmlns:x=“http://www.w3.org/1998/Math/MathML” display=“inline”><x:mrow><x:mn>1</x:mn><x:mtext> </x:mtext><x:mtext> </x:mtext><x:mi>μm</x:mi></x:mrow></x:math> with the total measurement time of 1 day. Published by the American Physical Society 2024