Geonium atom

A geonium atom, so named because it is bound to the earth, is a pseudo-atomic system created in a magnetic Penning trap, useful for measuring fundamental parameters of particles. A Penning trap is a combination of a homogeneous magnetic field and an electrostatic quadrupole potential. A single charged particle can be trapped indefinitely. Hans Dehmelt of the University of Washington created the first geonium atom in 1973, stably trapping an electron.

单词	Geonium
释义	Geonium 英语百科 Geonium atom A geonium atom, so named because it is bound to the earth, is a pseudo-atomic system created in a magnetic Penning trap, useful for measuring fundamental parameters of particles. A Penning trap is a combination of a homogeneous magnetic field and an electrostatic quadrupole potential. A single charged particle can be trapped indefinitely. Hans Dehmelt of the University of Washington created the first geonium atom in 1973, stably trapping an electron.
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