TY - JOUR
T1 - Tunneling qubit operation on a protected Josephson junction array
AU - Yin, Zhi
AU - Li, Sheng Wen
AU - Chen, Yi Xin
PY - 2010/1/27
Y1 - 2010/1/27
N2 - We propose a complete quantum computation process on a topologically protected Josephson junction array system, originally proposed by Ioffe and Feigel'man [Phys. Rev. B 66, 224503 (2002)]. Logical qubits for computation are encoded in the punctured array. The number of qubits is determined by the number of holes. The topological degeneracy is lightly shifted by tuning the flux along specific paths. We show how to perform both single-qubit and basic quantum-gate operations in this system, especially the controlled-NOT (CNOT) gate.
AB - We propose a complete quantum computation process on a topologically protected Josephson junction array system, originally proposed by Ioffe and Feigel'man [Phys. Rev. B 66, 224503 (2002)]. Logical qubits for computation are encoded in the punctured array. The number of qubits is determined by the number of holes. The topological degeneracy is lightly shifted by tuning the flux along specific paths. We show how to perform both single-qubit and basic quantum-gate operations in this system, especially the controlled-NOT (CNOT) gate.
UR - http://www.scopus.com/inward/record.url?scp=75849139211&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.81.012327
DO - 10.1103/PhysRevA.81.012327
M3 - Article
AN - SCOPUS:75849139211
SN - 1050-2947
VL - 81
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 1
M1 - 012327
ER -