Optimized design of universal two-qubit gates
arXiv:quant-ph/0412084 · doi:10.1103/PhysRevLett.95.110501
Abstract
We construct optimized implementations of the CNOT and other universal two-qubit gates that, unlike many of the previously proposed protocols, are carried out in a single step. The new protocols require tunable inter-qubit couplings but, in return, show a significant improvements in the quality of gate operations. Our optimization procedure can be further extended to the combinations of elementary two-qubit as well as irreducible many-qubit gates.
6 pages, 2 figures
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- Linear Nearest Neighbor Synthesis of Reversible Circuits by Graph Partitioning
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- Quantum logic with weakly coupled qubits
- Effect of system level structure and spectral distribution of the environment on the decoherence rate
- Implementation of three-qubit Toffoli gate in a single step
- Single-step controlled-NOT logic from any exchange interaction
- Optimization of the design of superconducting inhomogeneous nanowires
- Some aspects of the interplay between bipartite correlations and quantum channels