Ian McCulloch

2 months ago | link.aps.org | Jesse Osborne |Ian McCulloch

Numerical methods based on matrix product states (MPSs) are currently the de facto standard for calculating the ground-state properties of (quasi-)one-dimensional quantum many-body systems. While the properties of the low-lying excitations in such systems are often studied in this MPS framework through dynamics by means of time-evolution simulations, we can also look at their statics by directly calculating eigenstates corresponding to these excitations.