Key static and dynamic properties of matter—from creation in the Big Bang to evolution into
subatomic and astrophysical environments—arise from the underlying fundamental …

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Quantum metrology is one of the most promising applications of quantum technologies. The
aim of this research field is the estimation of unknown parameters exploiting quantum …

The unique features of quantum theory offer a powerful new paradigm for information
processing. Translating these mathematical abstractions into useful algorithms and …

The extraordinary sensitivity of plasmonic sensors is well-known in the optics and photonics
community. These sensors exploit simultaneously the enhancement and the localization of …

Encoding a qubit in the continuous degrees of freedom of an oscillator is a promising path to
error-corrected quantum computation. One advantageous way to achieve this is through …

Quantum metrology takes advantage of nonclassical resources such as entanglement to
achieve a sensitivity level below the standard quantum limit. To date, almost all quantum …

The quantum Fisher information (QFI) quantifies the ultimate precision of estimating a
parameter from a quantum state and can be regarded as a reliability measure of a quantum …

Distributed quantum metrology has drawn intense interest as it outperforms the optimal
classical counterparts in estimating multiple distributed parameters. However, most schemes …

The hypothetical axion particle (of unknown mass) is a leading candidate for dark matter
(DM). Many experiments search for axions with microwave cavities, where an axion may …