We investigate both the intermediate late-time tail and the asymptotic tail behavior of the charged massive Dirac fields in the background of the Kerr-Newman black hole. We find that the intermediate late-time behavior of charged massive Dirac fields is dominated by an inverse power-law decaying tail without any oscillation, which is different from the oscillatory decaying tails of the scalar field. We note that the dumping exponent depends not only on the angular quantum numbers $m$, the separation constant $\lambda$ and the rotating parameter $a$, but also on the product $seQ$ of the spin weight of the Dirac field and the charges of the black hole and the fields. We also find that the decay rate of the asymptotically late-time tail is $t^{-5/6}$, and the oscillation of the tail has the period of $2\pi / \mu$ which is modulated by two types of long-term phase shifts.
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机译：我们研究了在Kerr-Newman黑洞背景下带电的大量Dirac场的中间晚期尾部和渐近尾部行为。我们发现带电块狄拉克场的中间后期行为主要是由反幂律衰减尾巴所主导，而没有任何振荡，这与标量场的振荡衰减尾巴不同。我们注意到，倾销指数不仅取决于角量子数$ m $，分离常数$ \ lambda $和旋转参数$ a $，还取决于Dirac场自旋权重的乘积$ seQ $和黑洞和田野的电荷。我们还发现渐近末尾的衰减率是$ t ^ {-5/6} $，并且尾部的振荡具有$ 2 \ pi / \ mu $的周期，该周期由两种类型的长期相移。
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