TY - JOUR
T1 - Photon-loss-tolerant Zeno controlled-SIGN gate
AU - Myers, Casey R.
AU - Gilchrist, Alexei
PY - 2007/5/31
Y1 - 2007/5/31
N2 - We model an optical implementation of a controlled-SIGN gate that makes use of the quantum Zeno effect in the presence of photon loss. Gate operation is severely affected. However, we show that by using photon loss codes proposed for linear optical quantum computation (LOQC), performance is greatly enhanced, outperforming LOQC equivalents. The technique can be applied to other types of nonlinearities, making the implementation of nonlinear optical gates much more attractive.
AB - We model an optical implementation of a controlled-SIGN gate that makes use of the quantum Zeno effect in the presence of photon loss. Gate operation is severely affected. However, we show that by using photon loss codes proposed for linear optical quantum computation (LOQC), performance is greatly enhanced, outperforming LOQC equivalents. The technique can be applied to other types of nonlinearities, making the implementation of nonlinear optical gates much more attractive.
UR - http://www.scopus.com/inward/record.url?scp=34347343916&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.75.052339
DO - 10.1103/PhysRevA.75.052339
M3 - Article
AN - SCOPUS:34347343916
VL - 75
SP - 1
EP - 5
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 - 5
M1 - 052339
ER -