4 papers
The local characterization of global tensor network eigenstates
José Garre Rubio, András Molnár, Norbert Schuch +1
We study the conditions under which Matrix Product States (MPS) or Matrix Product Operators are exact eigenvectors of an extensive local operator, such as a Hamiltonian. By suitabl…
Dipoles and Anyonic Directional Confinement via Twisted Toric Codes
Jose Garre Rubio
We introduce a modified 2D toric code Hamiltonian that exhibits explicit anyon confinement along a single spatial direction. By bounding the motion of these confined anyons, we obt…
Anyonic symmetry fractionalization in SET phases
Jose Garre Rubio, Yoshiko Ogata
We consider the anyonic spin systems with a global symmetry, the so-called symmetry enriched topological (SET) phases. We introduce the phase characterizing the symmetry fractional…
Classifying symmetric and symmetry-broken spin chain phases with anomalous group actions
Jose Garre Rubio, Andras Molnar, Yoshiko Ogata
We consider the classification problem of quantum spin chains invariant under local decomposable group actions, covering matrix product unitaries (MPUs), using an operator algebrai…