The story starts with quantum field theory, which is incredibly complex, but the simplified version is that even empty space is filled with fields that could govern the interactions of any quantum objects in or near that space. You can think of different particles as energetic excitements of these fields—so a photon is simply an energetic state of the quantum field.
中國在2022北京冬奧愛上了這位「冰雪公主」——作為冬奧形象代言人，她完美兌現了承諾。
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