A single positron is held indefinitely in a Penning trap to create a quantum cyclotron for high-precision magnetic moment measurements and CPT tests.
One-Positron Quantum Cyclotron
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abstract
A one-positron quantum cyclotron is realized with a single positron suspended indefinitely in the magnetic field of a Penning trap. This opens the way to quantum measurements of the positron magnetic moment, to a precision much higher than attained with classical cyclotron motion. Comparing the magnetic moments measured using positron and electron quantum cyclotrons should provide the most stringent test of the fundamental CPT invariance of the Standard Model of particle physics in the lepton sector.
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physics.ins-det 1years
2026 1verdicts
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One-Positron Quantum Cyclotron
A single positron is held indefinitely in a Penning trap to create a quantum cyclotron for high-precision magnetic moment measurements and CPT tests.