TY  - JOUR
AU  - Perez, A.
PY  - 2010
DA  - 2010//
TI  - Information encoding of a qubit into a multilevel environment
T2  - Phys. Rev. A
JO  - Physical Review A
SP  - 052326
EP  - 6pp
VL  - 81
IS  - 5
PB  - Amer Physical Soc
AB  - I consider the interaction of a small quantum system (a qubit) with a structured environment consisting of many levels. The qubit will experience a decoherence process, which implies that part of its initial information will be encoded into correlations between system and environment. I investigate how this information is distributed on a given subset of levels as a function of its size, using the mutual information between both entities, in the spirit of the partial-information plots studied by Zurek and co-workers. In this case we can observe some differences, which arise from the fact that I am partitioning just one quantum system and not a collection of them. However, some similar features, like redundancy (in the sense that a given amount of information is shared by many subsets), which increases with the size of the environment, are also found here.
SN  - 1050-2947
UR  - http://arxiv.org/abs/0911.2119
UR  - https://doi.org/10.1103/PhysRevA.81.052326
DO  - 10.1103/PhysRevA.81.052326
LA  - English
N1  - ISI:000278140000064
ID  - Perez2010
ER  -