Trapping Anti-Matter: Difficulties & Quantum Fluctuations

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Y is trapping anti-matter so difficult...if we create a vacuum and trap the particles via magnetic field y will it still annihilate?? are quantum fluctuations in vacuum responsible for it??
 
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Well, we can't create a perfect vaccuum.
 
Trapping ONE particle in a magnetic field and then not doing anything else with that particle is relatively easy. Trapping thousands or more at the same time, and trying to move them around and do other experiments with them is much much more difficult.
 

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