In quantum many-body physics, topological degeneracy is a phenomenon in which the ground state of a gapped many-body Hamiltonian becomes degenerate in the limit of large system size such that the degeneracy cannot be lifted by any local perturbations. == Applications == Topological degeneracy can be used to protect qubits which allows topological quantum computation.
In quantum many-body physics, topological degeneracy is a phenomenon in which the ground state of a gapped many-body Hamiltonian becomes degenerate in the limit of large system size such that the degeneracy cannot be lifted by any local perturbations. == Applications == Topological degeneracy can be used to protect qubits which allows topological quantum computation.
Source: Wikipedia "Topological degeneracy" · CC BY-SA 4.0
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