另一种观点认为：暗物质颗粒同时也是自己的反粒子。

Another idea suggests that dark matter particles are their own antiparticles.

粒子与反粒子间的对称性深深地锲入到物理学的基础之中。

The symmetry between particles and antiparticles is woven deep into the foundations of physics.

每个粒子都应该对应着一个反粒子，它们的质量和寿命完全相同，但带有相反的电荷。

For each particle there should be a corresponding antiparticle with exactly the same mass and lifetime but with an opposite electrical charge.

从量子层面来说，空间中一直不断出现由一个正粒子和与其对应的反物质组成的反粒子虚偶。

At the quantum scale, virtual pairs consisting of a particle and its antimatter equivalent are constantly popping into existence.

量子物理学认为，真空并不是真正是空的，而是沸腾的海洋——被称作虚粒子与反粒子的东西不停出现与消失。

According to quantum physics, empty space is not actually barren but is a boiling sea of so-called virtual particles and antiparticles constantly popping in and out of existence.