We consider complementarity in a bipartite quantum system of arbitrary dimensions. Single-
partite and bipartite properties turn out as mutually exclusive quantities. The single-partite …

The detection of entangled states is essential in both fundamental and applied quantum
physics. However, this task proves to be challenging, especially for general quantum states …

We give a simplified form of Simon's separability criterion for two-mode Gaussian states,
showing that for systems whose unitary evolution is governed by arbitrary time-dependent …

Generating a long-distance quantum state with genuine quantum correlation (GQC) is one of
the most essential functions of quantum networks to support quantum communication. Here …

In this paper, we introduce a supervised learning technique that harnesses artificial neural
networks, along with the outcomes of collective entanglement measurements, to estimate …

The positive and not completely positive maps of density matrices are discussed. Probability
representation of spin states (spin tomography) is reviewed and U (N)-tomogram of spin …

The problem of a charged particle in the presence of a variable magnetic field is considered.
Using the linear and the quadratic invariants as a tool, the wave functions in Fock state as …

Determining if a quantum state is separable or entangled is a complex problem. Proposed
schemes usually employ the von Neumann entropy, the positivity of the partial transpose or …

The problem of constructing a necessary and sufficient condition for establishing the
separability of continuous variable systems is revisited. Simon [Phys. Rev. Lett. 84 (2000) …

We study the dynamics of the coefficient of quantum separability between resonantly
coupled modes of the massless scalar field in a one-dimensional ideal cavity, whose …