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- W3138726470 abstract "In classical and single-particle settings, non-trivial band topology always gives rise to robust boundary modes. For quantum many-body systems, however, multiple topological fermions are not always able to coexist, since Pauli exclusion prevents additional fermions from occupying the limited number of available topological modes. In this work, we show, through IBM quantum computers, how one can robustly stabilize more fermions than the number of topological modes through specially designed 2-fermion interactions. Our demonstration hinges on the realization of BDI- and D-class topological Hamiltonians of unprecedented complexity on transmon-based quantum hardware, and crucially relied on tensor network-aided circuit recompilation approaches beyond conventional trotterization. We also achieved the full reconstruction of multiple-fermion topological band structures through iterative quantum phase estimation (IQPE). All in all, our work showcases how advances in quantum algorithm implementation enables NISQ-era quantum computers to be exploited for topological stabilization beyond the context of single-particle topological invariants." @default.
- W3138726470 created "2021-03-29" @default.
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- W3138726470 date "2022-02-16" @default.
- W3138726470 modified "2023-09-26" @default.
- W3138726470 title "Stabilizing multiple topological fermions on a quantum computer" @default.
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- W3138726470 doi "https://doi.org/10.1038/s41534-022-00527-1" @default.
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