# Precisely determining photon-number in real-time

@inproceedings{Morais2020PreciselyDP, title={Precisely determining photon-number in real-time}, author={Leonardo Assis Morais and Till Weinhold and Marcelo P. Almeida and Joshua Combes and Adriana E. Lita and Thomas Gerrits and Sae Woo Nam and Andrew G. White and Geoff Gillett Centre for Engineered Quantum Systems and School of Mathematics and Physics and University of Southern Queensland and Department of Electrical and Computer and Energy Engineering and University of Colorado Boulder and National Institute of Standards and Technology and Quantum Valley Ideas Lab}, year={2020} }

Superconducting transition-edge sensors (TES) are sensitive microcalorimeters used as photon detectors with unparalleled energy resolution. They have found application from measuring astronomical spec-tra through to determining the quantum property of photon-number, ˆ n =ˆ a † ˆ a , for en-ergies from 0.6–2.33 eV. However, achiev-ing optimal energy resolution requires con-siderable data acquisition—on the order of 1 GB/min—followed by post-processing, which prevent access to energy information…

## 8 Citations

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