Nonlinear Michelson interferometer for improved quantum metrology

作者:Luis Alfredo*; Rivas Angel
来源:Physical Review A, 2015, 92(2): 022104.
DOI:10.1103/PhysRevA.92.022104

摘要

We examine quantum detection via a Michelson interferometer embedded in a gas with Kerr nonlinearity. This nonlinear interferometer is illuminated by pulses of classical light. This strategy combines the robustness against practical imperfections of classical light with the improvement provided by nonlinear processes. Regarding ultimate quantum limits, we stress that, as a difference with linear schemes, the nonlinearity introduces pulse duration as a new variable into play along with the energy resources.

  • 出版日期2015-8-7