Elementary Quantum Gates Based on Intrinsic Interaction Hamiltonian
Jing Chen, Chang‐shui Yu, He‐Shan Song · Communications in Theoretical Physics · 2006
A kind of new operators, the generalized pseudo-spin operators are introduced and a universal intrinsic Hamiltonian of two-qubit interaction is studied in terms of the generalized pseudo-spin operators. A fundamental quantum gate U (θ) is constructed based on the universal Hamiltonian and shown that the roles of the new quantum gate U (θ) is equivalent, functionally, to the joint operation of Hadamard and C-Not gates.