In this paper, we explore distribution dynamics of two-qubit Fisher and skew information
correlations of a dissipative microwave cavity ¯eld interacting with two charged superconducting
qubits. Besides the negativity function, non-classical correlations beyond entanglement
are studied using local quantum Fisher information (LQFI) and local quantum
uncertainty (LQU). We ¯nd that the two-qubit non-classical correlations are sensitive to
qubit{qubit distribution angle, two-qubit dissipation parameter, and initial coherent state intensity.
The phenomena of frozen quantum correlations, sudden death or birth, as well as
revival dynamical maps are feasible in the current two-qubit state when exposed to a microwave
cavity. The non-classical correlations and entanglement have been found damped under the
two-qubit dissipation appearance in the ¯eld. For the increasing strength of coherence intensity
of the ¯eld, the two-qubit non-classical correlations functions remain to emerge quickly and
oscillate with higher frequency, although with the least amplitudes. Interestingly, unlike the
non-classical correlations, negativity does not emerge against higher coherence strengths of the
cavity and remains completely zero. Finally, for the least dissipation and higher coherence
strength, one can readily generate non-classical two-qubit states employing a microwave cavity.

This paper solves milburn’s intrinsic noise (IN) model for a 3-level atom of anΞ-type interacting with
a coherent cavity field via multiphoton transitions. Therefore, the effects of the intrinsic noise and the
multi-photon interactions are investigated for some quantum phenomena, such as total correlation,
entanglement, and atomic inversion. In general, we found that the collapse-revival phenomenon
occurs during the oscillatory behaviour of atomic population dynamics. In addition, the birth-death
phenomenon is observed in the negativity dynamics. Entropy, negativity, and mutual information
have various dynamics. It is found that, as the entropy increases, the negativity and mutual
information diminish to stationary levels. When intrinsic noise is considered, all the phenomena of
atomic inversion, entropies, negativity and mutual information exhibit high sensitivity to high
intrinsic noise values, except the mutual information dynamics, which is more resistant than that of
the other quantifiers.

Bell’s inequalities are described by the sums of correlations including non-commuting observables in each of two systems.
Bell’s inequalities violation is possible since the accuracy of any joint measurement of mentioned observables would be
limited by quantum uncertainty relations. In this work, we investigate the generating and robustness of two-qubit information
resources including two-qubit Bell nonlocality, quantum entanglement, and entropic measurement uncertainty in a two
neighboring spin-1/2 particles coupled via the Heisenberg XYZ interaction subjected to a transverse uniform magnetic field
by applying Dzyaloshinskii–Moriya (DM) and Kaplan–Shekhtman–Entin–Wohlman–Aharony (KSEA) interactions under
intrinsic decoherence. The influence of DM–KSEA interactions, external magnetic field, and intrinsic decoherence on the
dynamics of quantum correlations in our mentioned model is analyzed. Interestingly, new dynamical features of Bell nonlocality,
entanglement, and entropic uncertainty are obtained by regulating the initial state, system parameters, and decoherence.
Therefore, our results provide a helpful understanding of such dynamics and might offer an insight into measurement
estimating in open quantum systems.

An analytical description for the dynamical evolution of a qubit interacting with
two nonlinear Kerr oscillators pumped by optical parametric process is derived through
Su(1, 1)-algebraic treatment. The role of intrinsic damping, detuning and Kerr-like Medium
on the squeezing phenomenon is elucidated via information entropy squeezing. The evolutions
of the interaction of the qubit with two-mode Kerr nonlinear coupler lead to the
appearance the regular squeezing phenomenon during the chosen time-interval. The preserving
and protecting of the qubit components from the squeezing can be controlled by the
intrinsic decoherence, detuning and the Kerr-like medium effects. Where the squeezing phenomenon
deteriorates with increasing the decoherence rate, whereas, the Kerr-like medium
can not protect some qubit components from the squeezing.

An analytical solution of the master equation that describes two charge superconducting
qubits interacts with a single microwave cavity field mode within dispersive
approximation and dissipation region of the qubit damping. Quantum correlations of
a general two-qubit state (non-X-state) are studied by using three different quantum
correlation quantifiers: measurement-induced non-locality, geometric quantum discord
and logarithmic negativity. It is shown that the quantum correlations are sensitive
to the choice of the parameters of the qubit dissipation rate, coherent state intensity
and the initial qubit distribution angle. The generated oscillatory behavior of quantum
correlations is different and more prominent as the noise rate decreases at the
considered period of time.

tAn analytical solution of the master equation for two qubits-field system, in the dispersive regime, areinvestigated. The qubits are initially in Werner states and the field in coherent state. Under the influence ofthe damping, the geometric measure of quantum discord (GMQD) and the measurement-induced nonlo-cality (MIN) are investigated. GMQD and MIN are compared and illustrated their different characteristics.It is found that under the influence of damping the phenomenon of the death occurs for GMQD, but thisphenomenon does not occur for MIN even when the damping parameter is high. The initial conditionsfor the qubits play an important role in the phenomenon of collapses and revivals for GMQD and MIN.

We analyze two identical qubits interacting with a single-mode quantized
radiation field, taking into account the influence of phase damping. The qubits are
assumed to be initially in a superposition of the excited and the ground states, and the
field is in a coherent state. The effects of the damping on the purity loss of the system
and different bipartite partitions of the system [field-two qubits, qubit–(field+qubit)]
through the tangles are considered. The effect of the damping on the entanglement of
field qubits state is evaluated by the negativity. It is noted that the phenomenon of death
and rebirth of the entanglement appears.With the increase in the phase parameter, this
phenomenon disappears.

By using quantum discord (QD), measurement induced non-locality (MIN) and negativity (QE), quantum correlation
and entanglement are investigated for two qubits in two different cases for the initial two qubitWerner states, taking into
account the influence of qubit damping. It is shown that there is no asymptotic decay for MIN while asymptotic decay
exists for QD and QE. Quantum correlations cannot be strengthened by introducing the damping. The appearance time
of stationary correlations gets shorter with the increase in the damping parameter. Finally, a uniform damping qubit can
affect the stationary correlations when the qubits are initially in an entangled state.