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In the landscape picture, the disappearance of a flux line or other change of topology is a quantum jump over a mountain ridge into a lower valley. 在地景圖像里，一條通量線的消失或其他拓?fù)涞母淖儯痛硪粋€(gè)翻越山脊進(jìn)入低谷的量子躍遷。