13 February 2016 Examples of modern quantum sensing and metrology with new results on photon-added coherent states
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Abstract
Quantum sensing and metrology is the application of non-classical resources to the measurement of physical quantities with precision or accuracy beyond that allowed by classical physics. For many years non-classical resources such as atomic energy quantization, Josephson Effect, and Quantum Hall Effect have been used to define the fundamental units of time, voltage, and resistance, respectively. In recent years non-classical resources such as quantum squeezing and entanglement have been exploited to expand the range of physical phenomena measured with unprecedented precision or accuracy. We summarize some of the recent research on advanced quantum sensing and metrology and discuss our analyses of photon-added coherent states (PACS) of light. These analyses take into account imperfect photon addition and detection processes and show that PACS enable beyond-classical signal-to-noise ratio for photon counting even in cases where the probability of intended photon addition is 80%. We also show that there remains undiscovered fundamental properties of PACS related to their production and implementation.
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Jerome Luine, Jerome Luine, Anjali Singh, Anjali Singh, Bryan Gard, Bryan Gard, Jonathan Olson, Jonathan Olson, } "Examples of modern quantum sensing and metrology with new results on photon-added coherent states", Proc. SPIE 9755, Quantum Sensing and Nano Electronics and Photonics XIII, 97552G (13 February 2016); doi: 10.1117/12.2217161; https://doi.org/10.1117/12.2217161
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