Direct experimental access to some of the most intriguing quantum phenomena is not
granted due to the lack of precise control of the relevant parameters in their naturally …

Initialization of composite quantum systems into highly entangled states is usually a must to
enable their use for quantum technologies. However, unavoidable noise in the preparation …

Exploring the properties and applications of topological quantum states is essential to better
understand topological matter. Here, we theoretically study a quasi-one-dimensional …

Strongly correlated quantum systems can exhibit exotic behaviour called topological order
which is characterized by non-local correlations that depend on the system topology. Such …

We investigate the anisotropic quantum orbital compass model on an infinite square lattice
by means of the infinite projected entangled-pair state algorithm. For varying values of the J …

A comprehensive study of the two-dimensional (2D) compass model on the square lattice is
performed for classical and quantum spin degrees of freedom using Monte Carlo and …

Progress in describing thermodynamic phase transitions in quantum systems is obtained by
noticing that the Gibbs operator e− β H for a two-dimensional (2D) lattice system with a …

We explore the physics of the anisotropic compass model under the influence of perturbing
Heisenberg interactions and present the phase diagram with multiple quantum phase …

We study the quantum phase transitions in the two-dimensional spin-orbit models in terms of
fidelity susceptibility and reduced fidelity susceptibility. An order-to-order phase transition is …

In the present paper, we investigate quantum phase transition in the one-dimensional
compass model introduced by Brzezicki [Phys. Rev. B 75, 134415 (2007)]. Unlike the …