Circumventing Detector Backaction on a Quantum Cyclotron

Abstract

Detector backaction can be completely evaded when the state of a one-electron quantum cyclotron is detected, but it nonetheless significantly broadens the quantum-jump resonance lineshapes from which the cyclotron frequency can be deduced. This limits the accuracy with which the electron magnetic moment can be determined to test the standard model's most precise prediction. A steady state solution to a master equation, the first quantum calculation for the open quantum cyclotron system, illustrates a method to circumvent the detection backaction upon the measured frequency.

arXiv comment6 pages, 2 figures

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Cited by in corpus (8)

• Measurement of the Electron Magnetic Moment
• One-Electron Quantum Cyclotron as a Milli-eV Dark-Photon Detector
• Driven One-Particle Quantum Cyclotron
• Highly Excited Electron Cyclotron for QCD Axion and Dark-Photon Detection
• Foldy-Wouthuysen Transformation in Strong Magnetic Fields and Relativistic Corrections for Quantum Cyclotron Energy Levels
• Switchable Damping for a One-Particle Oscillator
• Radiative Energy and Mass Shifts of Quantum Cyclotron States
• Quantum Calculations of the Cavity Shift in Electron Magnetic Moment Measurements