Holographic Multiquarks in the Quark-Gluon Plasma: A Review

<table>The phase diagram of the dense nuclear phases involving multiquarks when gluons are deconfined for (a) <svg height="10.9125" id="M780" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 55.462502 10.9125" width="55.462502" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.9125)">
<g transform="translate(72,-63.27)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑇</tspan>
<tspan style="font-size: 12.50px; " x="10.339981" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="22.380369" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="28.63187" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="31.75762" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="38.009121" y="0">0</tspan>
</text>
</g>
</g>
</svg> and (b) <svg height="10.9125" id="M781" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 57.737499 10.9125" width="57.737499" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.9125)">
<g transform="translate(72,-63.27)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐵</tspan>
<tspan style="font-size: 12.50px; " x="12.165419" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="24.205809" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="30.457308" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="33.583057" y="0">2</tspan>
<tspan style="font-size: 12.50px; " x="39.834557" y="0">0</tspan>
</text>
</g>
</g>
</svg>. The chiral-symmetric quark-gluon plasma and the chirally broken MQ-<svg height="13.325" id="M782" style="vertical-align:-2.29482pt" version="1.1" viewbox="0 0 21.9625 13.325" width="21.9625" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,13.325)">
<g transform="translate(72,-61.34)">
<text transform="matrix(1,0,0,-1,-71.95,63.67)">
<tspan style="font-size: 12.50px; " x="0" y="0">∇</tspan>
<tspan style="font-size: 12.50px; " x="9.1396933" y="0">𝜑</tspan>
</text>
</g>
</g>
</svg> phase are represented by <svg height="10.175" id="M783" style="vertical-align:-2.53308pt" version="1.1" viewbox="0 0 10.825 10.175" width="10.825" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.175)">
<g transform="translate(72,-63.86)">
<text transform="matrix(1,0,0,-1,-71.95,66.44)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝜒</tspan>
</text>
</g>
</g>
</svg>S and <svg height="10.175" id="M784" style="vertical-align:-2.53308pt" version="1.1" viewbox="0 0 10.825 10.175" width="10.825" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.175)">
<g transform="translate(72,-63.86)">
<text transform="matrix(1,0,0,-1,-71.95,66.44)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝜒</tspan>
</text>
</g>
</g>
</svg>SB, respectively, <svg height="11.05" id="M785" style="vertical-align:-3.2316pt" version="1.1" viewbox="0 0 13.325 11.05" width="13.325" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.05)">
<g transform="translate(72,-63.16)">
<text transform="matrix(1,0,0,-1,-71.95,66.44)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑛</tspan>
</text>
<text transform="matrix(1,0,0,-1,-65.74,63.31)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑠</tspan>
</text>
</g>
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</svg> is the number of colour strings in fractions of <svg height="14.7125" id="M786" style="vertical-align:-3.2316pt" version="1.1" viewbox="0 0 31.299999 14.7125" width="31.299999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.7125)">
<g transform="translate(72,-60.23)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="6.2515001" y="0">/</tspan>
<tspan style="font-size: 12.50px; " x="9.727334" y="0">𝑁</tspan>
</text>
<text transform="matrix(1,0,0,-1,-51.58,60.37)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑐</tspan>
</text>
</g>
</g>
</svg>.</table>

Advances in High Energy Physics

Holographic Multiquarks in the Quark-Gluon Plasma: A Review

Figure 19