Monday, April 9, 2012

1204.1382 (Nicholas Chancellor et al.)

Using the J1-J2 Quantum Spin Chain as an Adiabatic Quantum Data Bus    [PDF]

Nicholas Chancellor, Stephan Haas
This paper investigates numerically a phenomenon which can be used to transport a single q-bit down a J1-J2 Heisenberg spin chain using a quantum adiabatic process. The motivation for investigating such processes comes from the idea that this method of transport could potentially be used as a means of sending data to various parts of a quantum computer made of artificial spins, and that this method could take advantage of the easily prepared ground state at the so called Majumdar-Ghosh point. We examine several annealing protocols for this process and find similar result for all of them. The annealing process works well up to a critical frustration threshold.
View original: http://arxiv.org/abs/1204.1382

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