Doubling Efficiency of Hamiltonian Simulation via Generalized Quantum Signal Processing
| Autor: | Berry, Dominic W., Motlagh, Danial, Pantaleoni, Giacomo, Wiebe, Nathan |
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| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Physical Review A 110, 012612 (2024) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.110.012612 |
| Popis: | Quantum signal processing provides an optimal procedure for simulating Hamiltonian evolution on a quantum computer using calls to a block encoding of the Hamiltonian. In many situations it is possible to control between forward and reverse steps with almost identical cost to a simple controlled operation. We show that it is then possible to reduce the cost of Hamiltonian simulation by a factor of 2 using the recent results of generalised quantum signal processing. Comment: 9 pages, no figures |
| Databáze: | arXiv |
| Externí odkaz: |
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