TY  - JOUR
AU  - Fernández González, Carlos
AU  - Schuch, Norbert
AU  - Wolf, Michael M.
AU  - Cirac, J.I.
AU  - Pérez García, David
PY  - 2012
DO  - 10.1103/PhysRevLett.109.26040
SN  - 0031-9007
UR  - https://hdl.handle.net/20.500.14352/42540
T2  - Physical Review Letters
AB  - We study Hamiltonians which have Kitaev's toric code as a ground state, and show how to construct a Hamiltonian which shares the ground space of the toric code, but which has gapless excitations with a continuous spectrum in the thermodynamic limit....
LA  - eng
PB  - American Physical Society
KW  - Toric code
TI  - Gapless Hamiltonians for the Toric Code Using the Projected Entangled Pair State Formalism
TY  - journal article
VL  - 109
ER  -