This is reflected in the fact that the vacuum expectation value of the field squared is nonzero in quantum field theory. Therefore there exist the so called vacuum fluctuations.
这反映在量子场论中场量平方的真空平均值不为零，这就是所谓的真空涨落。
This is reflected in the fact that the vacuum expectation value of the field squared is nonzero in quantum field theory. Therefore there exist the so called vacuum fluctuations.
这反映在量子场论中场量平方的真空平均值不为零，这就是所谓的真空涨落。
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