TY - JOUR
T1 - Observing the Quantum Limit of an Electron Cyclotron
T2 - QND Measurements of Quantum Jumps between Fock States
AU - Peil, S.
AU - Gabrielse, G.
PY - 1999/1/1
Y1 - 1999/1/1
N2 - Quantum jumps between Fock states of a one-electron oscillator reveal the quantum limit of a cyclotron. With a surrounding cavity inhibiting synchrotron radiation 140-fold, the jumps show a 13 s Fock state lifetime and a cyclotron in thermal equilibrium with 1.6 to 4.2 K blackbody photons. These disappear by 80 mK, a temperature 50 times lower than previously achieved with an isolated elementary particle. The cyclotron stays in its ground state until a resonant photon is injected. A quantum cyclotron offers a new route to measuring the electron magnetic moment and the fine structure constant.
AB - Quantum jumps between Fock states of a one-electron oscillator reveal the quantum limit of a cyclotron. With a surrounding cavity inhibiting synchrotron radiation 140-fold, the jumps show a 13 s Fock state lifetime and a cyclotron in thermal equilibrium with 1.6 to 4.2 K blackbody photons. These disappear by 80 mK, a temperature 50 times lower than previously achieved with an isolated elementary particle. The cyclotron stays in its ground state until a resonant photon is injected. A quantum cyclotron offers a new route to measuring the electron magnetic moment and the fine structure constant.
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U2 - 10.1103/PhysRevLett.83.1287
DO - 10.1103/PhysRevLett.83.1287
M3 - Article
AN - SCOPUS:0000013252
SN - 0031-9007
VL - 83
SP - 1287
EP - 1290
JO - Physical review letters
JF - Physical review letters
IS - 7
ER -