论文标题
在费米和抗激素的自由下降
On free fall of fermions and antifermions
论文作者
论文摘要
我们提出了一个模型，描述了量子场理论框架中弯曲时空中旋转半量子颗粒的模型。我们的模型基于在量子粒子状态的定义中体现爱因斯坦的等效原理和一般协方差。在手头模型的情况下，我们计算了几个可观察到的可观测值，这些可观察力表征了重力场中的旋转半量子颗粒。特别是，即使在没有扭转的情况下，我们也会发现，即使在正常的费米框架中，自旋进攻也会在正常的费米框架中。该效果似乎是我们最近报道的无旋量子颗粒的自由落体非宇宙性的补充。此外，我们发现量子粒子重力电位能量对地球重力场中的波包扩散不敏感，这是量子理论中自由下落的非宇宙性的原因。该理论结果通过使用重力光谱仪为我们的量子粒子模型进行了另一个通道。最后，我们还发现（基本的）效率和抗激素在重力上是无法区分的。
We propose a model describing spin-half quantum particles in curved spacetime in the framework of quantum field theory. Our model is based on embodying Einstein's equivalence principle and general covariance in the definition of quantum-particle states. With this model at hand, we compute several observables which characterise spin-half quantum particles in a gravitational field. In particular, we find that spin precesses in a normal Fermi frame, even in the absence of torsion. The effect appears to be complementary to free-fall non-universality we have recently reported about for spinless quantum particles. Furthermore, we find that quantum-particle gravitational-potential energy is insensitive to wave-packet spreading in the Earth's gravitational field, that is responsible for the non-universality of free fall in quantum theory. This theoretical result provides another channel for the experimental study of our quantum-particle model by using gravitational spectrometers. Finally, we also find that (elementary) fermions and antifermions are indistinguishable in gravity.
