3 papers
quant-ph2026
The product structure of MPS-under-permutations
Marta Florido-Llinà s, Ãlvaro M. Alhambra, Rahul Trivedi +3
Tensor network methods have proved to be highly effective in addressing a wide variety of physical scenarios, including those lacking an intrinsic one-dimensional geometry. In such…
quant-ph2025
Matrix Product Density Operators: Renormalization Fixed Points and Boundary Theories
J. I. Cirac, D. Perez-Garcia, N. Schuch +1
We consider the tensors generating matrix product states and density operators in a spin chain. For pure states, we revise the renormalization procedure introduced by F. Verstraete…
cond-mat.str-el2024
Entanglement Spectrum as a diagnostic of chirality of Topological Spin Liquids: Analysis of an PEPS
Mark J. Arildsen, Ji-Yao Chen, Norbert Schuch +1
We address the key question of representation of chiral topological quantum states in (2+1) dimensions (i.e., with non-zero chiral central charge) by Projected Entangled Pair State…