Generalized Quantum Search Hamiltonian

Details Generalized Quantum Search Hamiltonian Generalized Quantum Search Hamiltonian

2001-10-03

arxiv.org/abs/quant-ph/0110020v3

Phys. Rev. A 66, 012314(2002)

Physics

Quantum Physics

5 pages, Latex

Scientific paper

10.1103/PhysRevA.66.012314

There are hamiltonians that solve a search problem of finding one of $N$ items in $O(\sqrt{N})$ steps. They are hamiltonians to describe an oscillation between two states. In this paper we propose a generalized search hamiltonian, $H_{g}$. Then the known search hamiltonians become special cases of $H_{g}$. From the generalized search hamiltonian, we present remarkable results that searching with 100% is subject only to the phase factor in $H_{g}$ and independent to the number of states or initialization.

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