mgr Mariusz Adamski

Critical Scaling of Quantum Fidelity

Quantum fidelity was first introduced in the field of quantum information processing. It has been postulated to be also useful in the study of the properties of quantum critical points. Scaling laws have been derived, which promise a simpler alternative to established, but cumbersome methods. In this talk I will show some results of practical application of fidelity approach to the case of a two dimensional exactly diagonalizable fermion model, with the aim to verify and compare the performance of this method to the traditional approach.