144 citations · 844 across the 16 of their papers we have counts for
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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…
A Non-Commuting Stabilizer Formalism
Xiaotong Ni, Oliver Buerschaper, Maarten Van den Nest
We propose a non-commutative extension of the Pauli stabilizer formalism. The aim is to describe a class of many-body quantum states which is richer than the standard Pauli stabili…