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quant-ph2009★ 6 cited
Quantum 2-Body Hamiltonian for Topological Color Codes
H. Bombin, M. Kargarian, M. A. Martin-Delgado
We introduce a two-body quantum Hamiltonian model with spins-$\half$ located on the vertices of a 2D spatial lattice. The model exhibits an exact topological degeneracy in all coup…
quant-ph2007★ 123 cited
The renormalization of entanglement in the anisotropic Heisenberg (XXZ) model
M. Kargarian, R. Jafari, A. Langari
We have applied our recent approach (Kargarian, et.al Phys. Rev. A 76, 60304 (R) (2007)) to study the quantum information properties of the anisotropic s=1/2 Heisenberg chain. We h…