We present a quantum-classical algorithm to study the dynamics of the two-spatial-site
Schwinger model on IBM's quantum computers. Using rotational symmetries, total charge …

The phase‐space formulation of quantum mechanics has recently seen increased use in
testing quantum technologies, including methods of tomography for state verification and …

Invasiveness of quantum measurements is a genuinely quantum mechanical feature that is
not necessarily detrimental: Here we show how quantum measurements can be used to fuel …

A step towards the next generation of high-capacity, noise-resilient communication and
computing technologies is a substantial increase in the dimensionality of information space …

We represent a two-qubit density matrix in the basis of Pauli matrix tensor products, with the
coefficients constituting a Bloch matrix, analogous to the single qubit Bloch vector. We find …

In a previous paper [1] an Euler angle parametrization for SU (4) was given. Here we
present the derivation of a generalized Euler angle parametrization for SU (N). The formula …

We compute the volume of the convex (N 2− 1)-dimensional set Script MN of density
matrices of size N with respect to the Hilbert–Schmidt measure. The hyper-area of the …

The geometry of the generalized Bloch sphere Ω 3, the state space of a qutrit, is studied.
Closed form expressions for Ω 3, its boundary∂ Ω 3, and the set of extremals ${{\rm …

A proper set of indices characterizing the polarimetric purity of light and material media is
defined from the eigenvalues of the corresponding coherency matrix. A simple and …

Deep learning was recently successfully used in deriving symmetry transformations that
preserve important physics quantities. Being completely agnostic, these techniques …