Quantum optical metrology – the lowdown on high-N00N states

By Jonathan P. Dowling. 2008

805 citations recorded by the source corpus.

Quantum states of light, such as squeezed states or entangled states, can be used to make measurements (metrology), produce images, and sense objects with a precision that far exceeds what is possible classically, and also exceeds what was once thought to be possible quantum mechanically. The primary idea is to exploit quantum effects to beat the shot-noise limit in metrology and the Rayleigh diffraction limit in imaging and sensing. Quantum optical metrology has received a boost in recent years with an influx of ideas from the rapidly evolving field of optical quantum information processing. Both areas of research exploit the creation and manipulation of quantum-entangled states of light. We will review some of the recent theoretical and experimental advances in this exciting new field of quantum optical metrology, focusing on examples that exploit a particular two-mode entangled photon state – the High-N00N state.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/9573ff0a9a4dff12defdb842cfc52029c9566136

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Quantum metrology and its application in biology (2014, background): “For this reason they are often referred to as “classical light” [2, 35, 16], with the standard quantum limit described as the best precision which can be achieved classically [55, 56], even though truly classical light could in principle be entirely noise free.”
Quantum feedback: theory, experiments, and applications (2014, background): “ coherent state, then the error in the measured phase is proportional to 1= p N, where N is the average number of photons. But by using non-classical states, and in particular highly entangled states [327], the error can be reduced to 1=N, which is known as the Heisenberg limit. The experimental and”
Quantum Fisher information matrix and multiparameter estimation (2019, background): “In recent years, several outstanding reviews on quantum metrology and quantum parameter estimation have been provided from different perspectives and at different time, including the ones given by Giovannetti et al on the quantum-enhanced measurement [3] and the advances in quantum metrology [4], th”
Heralded noiseless linear amplification and distillation of entanglement (2009, background): “Additionally, more general field-mode entanglement is the basis for many approaches to quantum-enhanced metrolog”
Quantum Optical Technologies for Metrology, Sensing, and Imaging (2014, background): “also capable of phase resolution below the Rayleigh diffraction limit—known as super-resolution [25].”
Cavity QED with atomic mirrors (2012, background): “[55] Dowling, J.”
Squeezed states of light and their applications in laser interferometers (2016, background): “The theoretically optimal states describe a superposition of n (N) indistinguishable photons in one interferometer arm while having zero (0) photons in the second arm, and vice versa, and were named ‘N00N’-states [Dowling (2008)].”
Quantum-enhanced measurements without entanglement (2017, background): “…applications (see for instance (Boixo et al., 2009; Bollinger et al., 1996; Bouyer and Kasevich, 1997; Caves, 1981; Dorner et al., 2009; Dowling, 1998, 2008; Dunningham et al., 2002; Giovannetti et al., 2004, 2011; Higgins et al., 2007; Holland et al., 2002; Holland and Burnett, 1993;…”