PIRSA:09010008  ( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?

Speaker(s): Hector Bombin

Abstract: We introduce a two-body quantum Hamiltonian model of spin-1/2 on a 2D spatial lattice with exact topological degeneracy in all coupling regimes. There exists a gapped phase in which the low-energy sector reproduces an effective color code model. High energy excitations fall into three families of an... read more

Date: 21/01/2009 - 4:00 pm

Series: Perimeter Institute Quantum Discussions

URL: http://pirsa.org/09010008/  Share:

PIRSA:08040059  ( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?

Speaker(s): Hector Bombin

Abstract: We find that the overlapping of a topological quantum color code state, representing a quantum memory, with a factorized state of qubits can be written as the partition function of a 3-body classical Ising model on triangular or Union Jack lattices. This mapping allows us to test that different comp... read more

Date: 29/04/2008 - 2:50 am

Collection: Quantum Information and Graph Theory: Emerging Connections

URL: http://pirsa.org/08040059/  Share: