Quantum metrology.
By Vittorio Giovannetti, Seth Lloyd, Lorenzo Maccone. Physical Review Letters, 2005
1,999 citations recorded by the source corpus.
We point out a general framework that encompasses most cases in which quantum effects enable an increase in precision when estimating a parameter (quantum metrology). The typical quantum precision enhancement is of the order of the square root of the number of times the system is sampled. We prove that this is optimal, and we point out the different strategies (classical and quantum) that permit one to attain this bound.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/702e79eac0e0c0052ee9c4e28ea194876e07ade1
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Citations in the corpus
- Quantum spin squeezing (2010, neutral): “Here, we discuss spin squeezing and QFI in quantummetrology [171,249–252].”
- A perspective on multiparameter quantum metrology: From theoretical tools to applications in quantum imaging (2019, background): “Quantum sensing took its inspiration from the potential application to delicate systems [1–10].”
- Quantum Optical Technologies for Metrology, Sensing, and Imaging (2014, background): “In fact it has been shown that the Fisher information of a N -particle state being greater than N is a sufficient condition for multipartite entanglement [6], [58].”
- Squeezed states of light and their applications in laser interferometers (2016, background): “(2005); Goda et al. (2008); Taylor et al. (2013)] or the performance of imaging beyond the shot-noise limit [Lugiato et al.”
- Harnessing the Power of the Second Quantum Revolution (2020, positive): “The quantum version of Fisher information dictates the ultimate noise floor for parameter estimation [53] at the heart of precision sensing and metrology; nonclassical probes allow us to beat the standard limits imposed by uncorrelated corpuscular quanta [54,55].”
- Geometry of quantum phase transitions (2019, background): “Exploring this possibility plays a pivotal role in the current development of quantum technology [306, 307, 308, 309, 310, 311, 312, 313, 314, 315].”