Non-Gaussian states with Wigner negativity are of particular interest in quantum technology
due to their potential applications in quantum computing and quantum metrology. However …

Gaussian states with nonclassical properties such as squeezing and entanglement serve as
crucial resources for quantum information processing. Accurately quantifying these …

In this paper, we have examined the effectiveness exchange of optical vorticity via three-
wave mixing (TWM) technique in a four-level quantum dot (QD) molecule by means of the …

While the quantum metrological advantages of performing non‐Gaussian operations on two‐
mode squeezed vacuum (TMSV) states have been extensively explored, similar studies in …

The novel quantum effects induced by the free-electron–photons interaction have attracted
increasing interest due to their potential applications in ultrafast quantum information …

In this paper, we suggest a theoretical model for the exchange of the orbital angular
momentum (OAM) state of laser fields in a real cold atomic system for realization in an …

Nonclassical states of bosonic modes are important resources for quantum-enhanced
technologies. However, quantifying nonclassicality of these states, in particular mixed states …

Evaluating quantum Fisher information is an essential task in the parameter estimation and
quantum metrology. It quantifies the sensitivity of a quantum state to probe and capture …

The ability of the nonclassical states is gauged by their utility in performing various quantum
tasks. In recent times, quantification of nonclassicality has been put forward with regard to …

In this letter we have proposed a four-level graphene monolayer system for identifying the
topological charge of Laguerre–Gaussian light. Here, we have shown that due to the four …