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Bounding the Accuracy of Distributed Quantum Sensing
Jessica Thompson
Virtual - https://umd.zoom.us/j/93284680492?pwd=RHEvWGtoSk03T2FLblh0bkFldHNYQT09
Monday, December 7, 2020, 2:00-3:00 pm Calendar
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Abstract

A potential application of quantum information is to distributed sensing. The goal of a sensing problem can be described as calculating a specific value by measuring signals with a collection of sensors. With a classical signal, the accuracy in which the quantity can be determined is inversely bounded by the square root of the number of sensors; this bound is called the standard quantum limit. However, the use of quantum resources, such as entanglement and squeezed light, allows one to surpass this limit. For specific protocols, the accuracy is bounded by the quantum Cramér-Rao bound, which relies on the quantum Fisher Information of the system. In this talk, we will discuss the various quantum protocols for distributed quantum sensing and the calculation of this bound, in regards to their accuracy.

This talk is organized by Yusuf Alnawakhtha