Abstract The Yang–Baxter equation has long been recognised as the masterkey to
integrability, providing the basis for exactly solved models which capture the fundamental …

In this work, we investigate the quantum dynamics of a model for two single-mode Bose–
Einstein condensates which are coupled via Josephson tunnelling. Using direct numerical …

We discuss the long-distance transmission of qubits encoded in optical coherent states.
Through absorption, these qubits suffer from two main types of errors, namely the reduction …

Schemes for optical-state truncation of two cavity modes are analysed. The systems, referred
to as the nonlinear quantum scissors devices, comprise two coupled nonlinear oscillators …

We study the finite time entanglement dynamics between two dark-soliton qubits due to
quantum fluctuations in quasi-one-dimensional Bose-Einstein condensates. Recently, dark …

We study the interaction of a three-level atom with a single mode field in a cavity containing
a Kerr-like medium. Involving intensity dependent coupling, the wave function for the atomic …

In this work we investigate the energy gap between the ground state and the first excited
state in a model of two single-mode Bose–Einstein condensates coupled via Josephson …

In this paper we present a trajectory-based formulation of entanglement dynamics by
employing the Wigner function. The linear entropy of a single trajectory is derived based on …

We discuss the semiclassical limit of the entanglement for the class of closed pure systems.
By means of analytical and numerical calculations, we obtain two main results:(i) the short …

We study the dynamical entanglement of vibrations in small molecules by employing
algebraic models. We analytically obtain the linear entropy, von Neumann entropy, and the …