Department of Physics & Astronomy
University of New Mexico

CQuIC Seminars

Reframing SU(1,1) interferometry

Presented by Carlton Caves, University of New Mexico

SU(1,1) interferometry takes advantage of the reduced noise in the correlations of two-mode squeezed states. I will recast SU(1,1) interferometry as a way of making simultaneous back-action-evading measurements of both components of the displacement of a harmonic oscillator, exactly equivalent to measuring the two displacement components on separate modes subjected to the same displacement. I will then discuss how the same correlations can be used in two scenarios not usually thought of in terms of SU(1,1) interferometry: quantum illumination and characterization of the linear-optical network in randomized boson sampling.

3:30 pm, Thursday, October 17, 2019

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