The quantum dense-coding (DC) protocol, which has no security feature, deals with the
transmission of classical information encoded in a quantum state by using shared …

Quantum distillation is a modern technology to decrease the von Neumann entropy of a
subsystem by coherent system dynamics. Here we propose an active quantum distillation …

We design a measurement-based quantum refrigerator with an arbitrary number of qubits
situated in a one-dimensional array that interact through variable-range XY interactions. The …

A variable-range interacting Ising model with spin-1/2 particles exhibits distinct behavior
depending on the fall-off rates in the range of interactions, notably non-local (NL), quasi …

We develop a method to transform a collection of higher-dimensional spin systems from the
thermal state with a very high temperature of a local spin-s Hamiltonian to a low-lying energy …

We design a quantum thermal device that can simultaneously and dynamically cool multiple
target qubits. Using a setup with three bosonic heat baths, we propose an engineering of …

We design a set-up for creating maximally entangled two-qudit links between distant nodes
which are weakly coupled with interacting spin-s bulk (processor). We exhibit that such …

Recent breakthroughs in quantum technology pave the way for extensive utilization of
higher-dimensional quantum systems, which outperform their qubit counterparts in terms of …

We study the Lamb shift by considering the steady-state heat current through two coupled
two-level atoms, which, respectively, interact with a heat reservoir at a certain temperature. It …

We explore a small quantum refrigerator consisting of three qubits each of which are kept in
contact with an environment. We consider two settings: one is when there is necessarily …