Quantum superposition of high-dimensional states enables both computational speed-up
and security in cryptographic protocols. However, the exponential complexity of tomographic …

Recently, table-top experiments involving massive quantum systems have been proposed to
test the interface of quantum theory and gravity. In particular, the crucial point of the debate …

A well-motivated method for demonstrating that an experiment resists any classical
explanation is to show that its statistics violate generalized noncontextuality. We here …

Operational contextuality forms a rapidly develo** subfield of quantum information theory.
However, the characterization of the quantum mechanical entities that fuel the phenomenon …

The formalism of generalized probabilistic theories (GPTs) was originally developed as a
way to characterize the landscape of conceivable physical theories. Thus, the GPT …

The classical causal relations between a set of variables, some observed and some latent,
can induce both equality constraints (typically conditional independencies) as well as …

The principle of information causality, proposed as a generalization of no signaling principle,
has efficiently been applied to outcast beyond quantum correlations as unphysical. In this …

When gravity is sourced by a quantum system, there is tension between its role as the
mediator of a fundamental interaction, which is expected to acquire nonclassical features …

Hamiltonian mechanics describes the evolution of a system through its Hamiltonian. The
Hamiltonian typically also represents the energy observable, a Noether-conserved quantity …

Nonclassical causal modeling was developed in order to explain violations of Bell
inequalities while adhering to relativistic causal structure and $ faithfulness $---that is …