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oai:docta.ucm.es:20.500.14352/241852023-08-25T17:46:09Zcom_20.500.14352_14col_20.500.14352_15

Nonlinear Michelson interferometer for improved quantum metrology Luis Aina, Alfredo Rivas Vargas, Ángel 53 Gravitational-radiation Heisenberg limit Física (Física) 22 Física ©2015 American Physical Society. We acknowledge financial support from Spanish Ministerio de Economia y Competitividad Projects No. FIS2012-33152 and No. FIS2012-35583 and from the Comunidad Autonoma de Madrid research consortium QUITEMAD+ Grant No. S2013/ICE-2801. 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. Ministerio de Economia y Competitividad (MINECO), España Comunidad Autonoma de Madrid Depto. de Óptica Fac. de Ciencias Físicas TRUE pub 2023-06-18T06:47:23Z 2023-06-18T06:47:23Z 2015-08-07 journal article https://hdl.handle.net/20.500.14352/24185 1050-2947 10.1103/PhysRevA.92.022104 eng FIS2012-33152 FIS2012-35583 QUITEMAD + (S2013/ICE-2801) open access application/pdf American Physical Society