TY - JOUR
T1 - Numerical analysis of capacities for two-qubit unitary operations
AU - Berry, Dominic W.
AU - Sanders, Barry C.
PY - 2005/2/1
Y1 - 2005/2/1
N2 - We present numerical results on the capacities of two-qubit unitary operations for performing communication and creating entanglement. The capacities for communication considered are based upon the increase in Holevo information of an ensemble. Our results indicate that the capacity may be accurately estimated using ensemble sizes and ancilla dimensions of 4. In addition, the calculated values of these capacities were close to, and in some cases equal to, the similarly defined entangling capacities; this result indicates connections between these capacities.
AB - We present numerical results on the capacities of two-qubit unitary operations for performing communication and creating entanglement. The capacities for communication considered are based upon the increase in Holevo information of an ensemble. Our results indicate that the capacity may be accurately estimated using ensemble sizes and ancilla dimensions of 4. In addition, the calculated values of these capacities were close to, and in some cases equal to, the similarly defined entangling capacities; this result indicates connections between these capacities.
UR - http://www.scopus.com/inward/record.url?scp=33344463270&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.71.022304
DO - 10.1103/PhysRevA.71.022304
M3 - Article
AN - SCOPUS:33344463270
VL - 71
SP - 1
EP - 11
JO - Physical Review A: covering atomic, molecular, and optical physics and quantum information
JF - Physical Review A: covering atomic, molecular, and optical physics and quantum information
SN - 2469-9926
IS - 2
M1 - 022304
ER -