Quote:
Originally Posted by Flyndaran
I thought super insanely strong fields required loads of power or intensities beyond that of any permanent magnets.
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It depends what you mean by insanely strong fields. Permanent rare earth magnets have fields around 1.4 Teslas and use no power (iron magnets are only about half as powerful). Superconducting electro magnets require little power, and can get to fields of about 10 Teslas.
To get higher fields you need massive copper electromagnets. These are huge facilities and pipes of water flow inside the copper could to cool it. These need lots of power but allow you to get to 30-70 Teslas. Higher, you can build a smaller electro-magnet and surround it with explosives. When detonated, the magnetic field implodes. This would not be suitable to hold antimatter!
Current antimatter traps (such as a Penning trap) use a superconducting magnets with an electric potential to trap to particles. Of course, now these only hold a minuscule amount of anti-matter.