When positrons are absent from the nested trap, no antiprotons are detected, proving that lone antiprotons cannot surmount the potential barrier to get into the far trap.

 
  • 当这样的双重阱里没有正子,就侦测不到反质子,这证明了,单一反质子没办法克服位能障碍而飞到远处另一个阱里。
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