论文标题
通过冷却磁化夸克gluon等离子体来融化全息介子
Melting holographic mesons by cooling a magnetized quark gluon plasma
论文作者
论文摘要
我们扩展了在存在强烈磁场的情况下对全息膜分离的分析。除了介子融化的先前已知的临界温度之外，我们还发现，对于某些磁场强度，存在第二个较低的临界温度，而稳定的介体在此不复存在。尽管我们在此之前表明，可以通过改变磁场强度来融化介体的一系列高温，但在这里我们表明，由于第二个临界点的结果，也可以触发这种现象（mmm）的一系列低温。另外，我们还表明，磁场及其质量降低了介子光谱的质量间隙。我们能够通过构建一种配置来观察这一点，该配置使得可以应用量规/重力方法研究夸克 - 胶原等离子体中的基本自由度，而受到高能量碰撞中预期的磁场的影响。这是通过十维背景对磁化等离子体双重的糖果来实现的，尽管如此，它仍允许在其中嵌入D7-BRANES。与先前的方法的主要区别，因此给出了新的结果，是几何本身中的磁场反射，而不是仅限于探针D7-branes的世界体积。
We extend our analysis of holographic meson dissociation in the presence of an intense magnetic field. In addition to the previously known critical temperature above which the mesons melt, we found that for certain magnetic field intensities there exists a second lower critical temperature, below which stable mesons cease to exist. While we showed before that there is a range of high temperatures for which mesons can be melted by changing the magnetic field intensity, here we show that, as a consequence of the second critical point, there is also a range of low temperatures for which this phenomenom, which we term Magnetic Meson Melting (MMM), can be triggered. Additionaly, we also show that the magnetic field decreases the mass gap of the meson spectrum along with their masses. We are able to observe this by constructing a configuration that makes it possible to apply gauge/gravity methods to study fundamental degrees of freedom in a quark-gluon plasma subject to a magnetic field as intense as that expected in high energy collisions. This is achieved by the confection of a ten-dimensional background that is dual to the magnetized plasma and nonetheless permits the embedding of D7-branes in it. The main difference with previous approaches, which in consequence gives the novel results, is that the magnetic field retroacts in the geometry itself, as opposed to be confined to the world volume of the probe D7-branes.
