Quantum technologies exploit entanglement to revolutionize computing, measurements, and
communications. This has stimulated the research in different areas of physics to engineer …

We comprehensively review the quantum theory of the polarization properties of light. In
classical optics, these traits are characterized by the Stokes parameters, which can be …

Heisenberg-limited measurement protocols can be used to gain an increase in
measurement precision over classical protocols. Such measurements can be implemented …

I derive the quantum phase-noise limit to the sensitivity of a Mach-Zehnder interferometer in
which the incident quantum particles enter via both input ports. I show that if the incident …

We demonstrate phase super-resolution in the absence of entangled states. The key insight
is to use the inherent time-reversal symmetry of quantum mechanics: our theory shows that it …

Advancements in physics are often motivated/accompanied by advancements in our
precision measurements abilities. The current generation of atomic and optical …

A model of a four-wave mixer operated in a nonlinear regime, studied by Yurke and Stoler
[Phys. Rev. A 35, 4846 (1987)], is reexamined. Yurke and Stoler have shown that this …

We address the precision of optical interferometers fed by quantum and semiclassical
Gaussian states involving passive and/or active elements, such as beam splitters …

We propose a scheme for the conditional generation of arbitrary finite superpositions of Fock
states in a single mode of a traveling optical field. The setup requires a source of squeezed …

We propose a scheme for conditional generation of two-mode N-photon path-entangled
states of traveling light field. These states may find applications in quantum optical …