A non-commuting stabilizer formalism

作者：Ni Xiaotong^*; Buerschaper Oliver; Van den Nest Maarten

来源：Journal of Mathematical Physics, 2015, 56(5): 052201.

DOI：10.1063/1.4920923

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 stabilizer states. In our framework, stabilizer operators are tensor products of single-qubit operators drawn from the group. aI, X,S., where alpha = e(i pi/4) and S = diag(1,i). We provide techniques to efficiently compute various properties related to bipartite entanglement, expectation values of local observables, preparation by means of quantum circuits, parent Hamiltonians, etc. We also highlight significant differences compared to the Pauli stabilizer formalism. In particular, we give examples of states in our formalism which cannot arise in the Pauli stabilizer formalism, such as topological models that support non-Abelian anyons.

• 出版日期2015-5