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Hyper-Ramsey Spectroscopy of Optical Clock Transitions
V. I. Yudin, A. V. Taichenachev, C. W. Oates +6
We present non-standard optical Ramsey schemes that use pulses individually tailored in duration, phase, and frequency to cancel spurious frequency shifts related to the excitation…
Spin-1/2 Optical Lattice Clock
N. D. Lemke, A. D. Ludlow, Z. W. Barber +7
We experimentally investigate an optical clock based on Yb () atoms confined in an optical lattice. We have evaluated all known frequency shifts to the clock transit…
Compensation of Field-Induced Frequency Shifts in Ramsey Spectroscopy of Optical Clock Transitions
A. V. Taichenachev, V. I. Yudin, C. W. Oates +6
We have extended Ramsey spectroscopy by stepping the probe frequency during the two Ramsey excitation pulses to compensate frequency shifts induced by the excitation itself. This m…
Probing Interactions between Ultracold Fermions
G. K. Campbell, M. M. Boyd, J. W. Thomsen +12
At ultracold temperatures, the Pauli exclusion principle suppresses collisions between identical fermions. This has motivated the development of atomic clocks using fermionic isoto…