TY - JOUR
T1 - Error tolerance and tradeoffs in loss- and failure-tolerant quantum computing schemes
AU - Rohde, Peter P.
AU - Ralph, Timothy C.
AU - Munro, William J.
PY - 2007
Y1 - 2007
N2 - Qubit loss and gate failure are significant problems for the development of scalable quantum computing. Recently, various schemes have been proposed for tolerating qubit loss and gate failure. These include schemes based on cluster and parity states. We show that by designing such schemes specifically to tolerate these error types we cause an exponential blowout in depolarizing noise. We discuss several examples and propose techniques for minimizing this problem. In general, this introduces a tradeoff with other undesirable effects. In some cases this is physical resource requirements, while in others it is noise rates.
AB - Qubit loss and gate failure are significant problems for the development of scalable quantum computing. Recently, various schemes have been proposed for tolerating qubit loss and gate failure. These include schemes based on cluster and parity states. We show that by designing such schemes specifically to tolerate these error types we cause an exponential blowout in depolarizing noise. We discuss several examples and propose techniques for minimizing this problem. In general, this introduces a tradeoff with other undesirable effects. In some cases this is physical resource requirements, while in others it is noise rates.
UR - http://www.scopus.com/inward/record.url?scp=33846369052&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.75.010302
DO - 10.1103/PhysRevA.75.010302
M3 - Article
AN - SCOPUS:33846369052
VL - 75
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 - 1
M1 - 010302
ER -