144 citations · 844 across the 16 of their papers we have counts for
16 papers
Fermionic topological quantum states as tensor networks
C. Wille, O. Buerschaper, J. Eisert
Tensor network states, and in particular projected entangled pair states, play an important role in the description of strongly correlated quantum lattice systems. They do not only…
Mixing properties of stochastic quantum Hamiltonians
E. Onorati, O. Buerschaper, M. Kliesch +3
Random quantum processes play a central role both in the study of fundamental mixing processes in quantum mechanics related to equilibration, thermalisation and fast scrambling by…
Topological Minimally Entangled States via Geometric Measure
Oliver Buerschaper, Artur Garcia-Saez, Roman Orus +1
Here we show how the Minimally Entangled States (MES) of a 2d system with topological order can be identified using the geometric measure of entanglement. We show this by minimizin…
Protected gates for topological quantum field theories
Michael E. Beverland, Oliver Buerschaper, Robert Koenig +3
We study restrictions on locality-preserving unitary logical gates for topological quantum codes in two spatial dimensions. A locality-preserving operation is one which maps local…
Double Semion Phase in an Exactly Solvable Quantum Dimer Model on the Kagome Lattice
Oliver Buerschaper, Siddhardh C. Morampudi, Frank Pollmann
Quantum dimer models typically arise in various low energy theories like those of frustrated antiferromagnets. We introduce a quantum dimer model on the kagome lattice which stabil…
Topological transitions from multipartite entanglement with tensor networks: a procedure for sharper and faster characterization
Roman Orus, Tzu-Chieh Wei, Oliver Buerschaper +1
Topological order in a 2d quantum matter can be determined by the topological contribution to the entanglement Rényi entropies. However, when close to a quantum phase transition, i…