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Improved algorithms for quantum simulation of fermionic systems
Presenting Author: Kevin Sung, University of Michigan
Contributing Author(s): Zhang Jiang, Kostyantyn Kechedzhi, Vadim Smelyanskiy, Sergio Boixo
We present some quantum algorithms for the simulation of fermionic systems on one- and two-dimensional qubit arrays with nearest-neighbor interactions. We show how to prepare arbitrary fermionic Gaussian states with O(N^2) gates and O(N) depth. For the special case of Slater determinants, we improve an existing algorithm by exploiting a unitary symmetry. We also present an algorithm for performing the two-dimensional fermionic Fourier transform with O(N^1.5) gates and O(N^.5) depth.
Read this article online: https://arxiv.org/abs/1711.05395
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