ABSTRACT A new type of quantum interferometer was recently realized that employs
parametric amplifiers (PAs) as the wave splitting and mixing elements. The quantum …

We theoretically study the phase sensitivity of an SU (1, 1) interferometer, in which the phase
shift is induced by a Kerr medium, together with a coherent state input and homodyne …

Interferometers are widely used as sensors in precision measurement. Compared with a
conventional Mach–Zehnder interferometer, the sensitivity of a correlation-enhanced …

Quantum estimation of parameters defining open-system dynamics may be enhanced by
using ancillas that are entangled with the probe but are not submitted to the dynamics. Here …

The success of quantum technologies is intimately connected to the possibility of using them
in real-world applications. This requires the system to be comprehensively modeled …

We present a quantum heat engine based on a quantum Otto cycle, whose working
substance reproduces the same outcomes of a SU (1, 1) interference process at the end of …

Abstract Nonlinear SU (1, 1) interferometers are fruitful and promising tools for spectral
engineering and precise measurements with phase sensitivity below the classical bound …

Despite its indisputable merits, the Wigner phase-space formulation has not been widely
explored for systems with SU (1, 1) symmetry, as a simple operational definition of the …

By performing two local displacement operations (LDOs) inside an SU (1, 1) interferometer,
called as the displacement-assisted SU (1, 1)[DSU (1, 1)], both the phase sensitivity based …

We theoretically investigate the nonclassicality of the squeezed Hermite polynomial state
(SHPS) by examining the squeezing feature, the oscillation of photon-number distribution …