Speaker
Minoru SEKIYAMA
(UTokyo School of Science)
Description
The quantum imaginary time evolution (QITE) is a quantum algorithm that approximates imaginary-time evolution using unitary operators.
We apply the QITE to the two-dimensional pure $\mathbb{Z}_2$ lattice gauge theory to obtain the ground state energy. In addition, we estimate the algorithmic and statistical errors and computational costs via classical simulation. It was also shown in the previous work in the context of spin models that one can construct the unitary operators while preserving (global) symmetry, which reduces the gate count. We utilize the same method for the local gauge constraints (Gauss’s law) and demonstrate a reduction in gate cost.
| Parallel Session (for talks only) | Quantum computing and quantum information |
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Authors
Dr
Lento Nagano
(University of Tokyo (JP))
Minoru SEKIYAMA
(UTokyo School of Science)
