2020/07/31 by Karol Gietka, Ayaka Usui, Jianqiao Deng +1 · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physrevlett.126.160402
published as Phys. Rev. Lett. 126, 160402 (2021) · 5 pages, 3 figures
arxiv created 2021/04/06 · arxiv updated 2021/04/28
We develop a framework and give an example for situations where two distinct Hamiltonians living in the same Hilbert space can be used to simulate the same physics. As an example of an analog simulation, we first discuss how one can simulate an infinite-range-interaction one-axis twisting Hamiltonian using a short-range nearest-neighbor-interaction Heisenberg XXX model with a staggered field. Based on this, we show how one can build an alternative version of a digital quantum simulator. As a by-product, we present a method for creating many-body maximally entangled states using only short-range nearest-neighbor interactions.