Heat engines convert thermal energy into mechanical work and generally involve a large
number of particles. We report the experimental realization of a single-atom heat engine. An …

It is shown that a realistic controlled bidirectional remote state preparation is possible using
a large class of entangled quantum states having a particular structure. Existing protocols of …

Open quantum systems is the study of quantum dynamics of the system of interest, taking
into account the effects of the ambient environment. It is ubiquitous in the sense that any …

The problem of defining quantum non-Markovianity has proven elusive, with various in-
equivalent criteria put forth to address it. The concept of CP-indivisibility and the hierarchy of …

The effect of noise on various protocols of secure quantum communication has been
studied. Specifically, we have investigated the effect of amplitude damping, phase damping …

A master equation has been constructed for a global system–bath interaction in the both
absence and presence of non-Markovian noise. For the memoryless case, it has been …

We introduce a method to construct non-Markovian variants of completely positive (CP)
dynamical maps, particularly, qubit Pauli channels. We identify non-Markovianity with the …

In this article, single, and two‐qubit central spin systems interacting with spin baths are
considered and their dynamical properties are discussed. The cases of interacting and non …

We present analytic estimates of the performances of various approximate quantum error-
correction schemes for the generalized amplitude-damping (GAD) qubit channel …

We consider finite-sized atomic systems with varying number of particles which have dipolar
interactions among them and are also under the collective driving and dissipative effect of a …