``Spacetime'' with the quantum ħ

In the standard quantum theory at both the particle and field level, there is the important theoretical and conceptual background of the classical spacetime. We develop a novel approach to put the quantum structure into spacetime itself, or rather its quantum counterpart. The starting point here is to incorporate the qauntum ħ into the (special) relativity for the `quantum spacetime'. We will introduce the novel framework and its most recent development.