Measurement incompatibility stipulates the existence of quantum measurements that cannot
be carried out simultaneously on single systems. We show that the set of input-output …

Standard Leggett-Garg inequalities (SLGIs) were formulated for testing incompatibility
between the classical world view of macrorealism and quantum mechanics. In recent times …

It remains an open question how a realist view of the macroscopic world emerges from a
quantum formalism. For testing the macrorealism in the quantum domain, an interesting …

Characterization of quantum devices received from unknown providers is a significant
primary task for any quantum information processing protocol. Self-testing protocols are …

For multilevel spin systems, robustness of the quantum mechanical (QM) violation of
macrorealism (MR) with respect to coarse-grained measurements is investigated using three …

Nonclassicality of temporal correlations pertaining to noncommutative sequential
measurements is defined through the violation of macrorealistic inequalities, known as …

We study the dynamics of a non-Hermitian PT-symmetric Hamiltonian of a two level system
(TLS) which has real eigenvalues. Within the framework of Hermitian quantum mechanics, it …

Generalized quantum measurements with two outcomes are fully characterized by two real
parameters, dubbed as sharpness parameter and biasedness parameter and they can be …

We explore the fundamental origin of the quantum advantage behind random access code.
We propose new temporal inequalities compatible with noninvasive-realist models and …

We investigate quantum violation of macrorealism for multilevel spin systems under the
condition of coarsening of measurement times, ie, when measurement times have …