TY - JOUR
T1 - Three-way entanglement and three-qubit phase gate based on a coherent six-level atomic system
AU - Hang, Chao
AU - Li, Yun
AU - Ma, Lei
AU - Huang, Guoxiang
PY - 2006
Y1 - 2006
N2 - We analyze the nonlinear optical response of a six-level atomic system under a configuration of electromagnetically induced transparency. We show that the enhanced completely cross fifth-order nonlinearity generated in such a system can be used to produce efficient three-way entanglement and to realize a three-qubit quantum phase gate. We demonstrate that such phase gate can be transferred to an all-optical Toffoli gate, facilitating practical applications in quantum information and computation.
AB - We analyze the nonlinear optical response of a six-level atomic system under a configuration of electromagnetically induced transparency. We show that the enhanced completely cross fifth-order nonlinearity generated in such a system can be used to produce efficient three-way entanglement and to realize a three-qubit quantum phase gate. We demonstrate that such phase gate can be transferred to an all-optical Toffoli gate, facilitating practical applications in quantum information and computation.
UR - https://www.scopus.com/pages/publications/33746656801
U2 - 10.1103/PhysRevA.74.012319
DO - 10.1103/PhysRevA.74.012319
M3 - 文章
AN - SCOPUS:33746656801
SN - 1050-2947
VL - 74
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 1
M1 - 012319
ER -