The term “Layers of classicality” in the context of quantum measurements, was introduced in [T. Heinosaari, Phys. Rev. A 93, 042118 (2016)]. The strongest layer among these consists of the sets of… Expand

It is well known that quantum switch is an example of indefinite causal order. Recently, application of quantum switch on quantum channels, became a hot topic of discussion. It is possible to achieve… Expand

A beautiful idea about the incompatibility of Physical Context(IPC) was introduced in [Phys. Rev. A 102, 050201(R) (2020)]. Here, a context is defined as a set of a quantum state and two sharp… Expand

We investigate the role of symmetric quantum cloning machines (QCMs) in quantifying the mutual incompatibility of quantum observables. Specifically, we identify a cloning-based incompatibility… Expand

The compatibility of quantum instruments is defined as the existence of a joint instrument through the implementation of which one can simultaneously implement the individual instruments by doing… Expand

We obtain a formal characterization of the compatibility or otherwise of a set of positive-operator-valued measures (POVMs) via their Naimark extensions. We show that a set of POVMs is jointly… Expand