Title:Â Â Squeezed light and continuous-variable entanglement, and their applications in sensing and communications Abstract:Â Quadrature squeezed states of light have been investigated for use in quantum-enhanced photonic sensors over several decades, notably at the Laser Interferometer Gravitational-Wave Observatory. The enhanced sensitivity is afforded by the "squeezed" quadrature noise in a coherent-detection measurement that assists with a higher-precision phase measurement. Single-mode squeezed light, when split in a multimode linear interferometer, produces an entangled multimode Gaussian state that can estimate a function of correlated phases modulating the constituent modes, with precision even higher than what individual (unentangled) squeezed state probes can provide. In this talk, I will discuss some recently-studied applications of squeezing enhanced sensitivity, e.g., in near-field optical beam-deflection measurement, quickest change detection of channel loss, and entanglement assisted classical communications and imaging.