It is a common notion in classical mechanics that the result of a measurement depends on the observable measured and the system in consideration. From the measurement outcomes, it is possible to assign the pre-measurement ...

Decoherence is the process by which a quantum system interacts with its environment and evolves into an arbitrary state, often irreversible nonunitary evolution. This is a major setback for quantum information processing ...

This Thesis is focussed on the preparation and applications of multiple quantum coherence such as MSSM(Many some, + Some many) States and N00N state(quantum mechanical many-body entangled state) in star topology ...

Control over the quantum world is expected to open new horizons in this century. \Given a quantum system, how best we can control its dynamics?" is the question at the heart of quantum control technology. Several ...

Quantum systems are often correlated in classically inaccessible ways. Hence non-classical correlations in a system are signatures of genuinely quantum systems. Hence quantum correlations are precious resources for quantum ...

Classical systems have a definite position and momentum, which can be visualised using a point in the phase space. Analogous treatment to classical phase space in quantum mechanics gives rise to quasi-probability distributions. ...