Determining Ramsey numbers on a quantum computer

作者:Wang, Hefeng*
来源:Physical Review A, 2016, 93(3): 032301.
DOI:10.1103/PhysRevA.93.032301

摘要

We present a quantum algorithm for computing the Ramsey numbers whose computational complexity grows superexponentially with the number of vertices of a graph on a classical computer. The problem is mapped to a decision problem on a quantum computer, and a probe qubit is coupled to a register that represents the problem and detects the energy levels of the problem Hamiltonian. The decision problem is solved by detecting the decay dynamics of the probe qubit.

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