140 citations · 199 across the 3 of their papers we have counts for
3 papers
quant-ph2009★ 9 cited
Geometry of Generalized Depolarizing Channels
Christian K. Burrell
A generalized depolarizing channel acts on an N-dimensional quantum system to compress the ``Bloch ball'' in N^2-1 directions; it has a corresponding compression vector. We investi…
quant-ph2008★ 50 cited
Information propagation through quantum chains with fluctuating disorder
Christian K. Burrell, Jens Eisert, Tobias J. Osborne
We investigate the propagation of information through one-dimensional quantum chains in fluctuating external fields. We find that information propagation is suppressed, but in a qu…
quant-ph2007★ 140 cited
Bounds on Information Propagation in Disordered Quantum Spin Chains
Christian K. Burrell, Tobias J. Osborne
We investigate the propagation of information through the disordered XY model. We find, with a probability that increases with the size of the system, that all correlations, both c…