Article ; Online: Demonstration of Tunable Three-Body Interactions between Superconducting Qubits.
2022 Volume 129, Issue 22, Page(s) 220501
Abstract: Nonpairwise multiqubit interactions present a useful resource for quantum information processors. Their implementation would facilitate more efficient quantum simulations of molecules and combinatorial optimization problems, and they could simplify error ...
| Abstract | Nonpairwise multiqubit interactions present a useful resource for quantum information processors. Their implementation would facilitate more efficient quantum simulations of molecules and combinatorial optimization problems, and they could simplify error suppression and error correction schemes. Here, we present a superconducting circuit architecture in which a coupling module mediates two-local and three-local interactions between three flux qubits by design. The system Hamiltonian is estimated via multiqubit pulse sequences that implement Ramsey-type interferometry between all neighboring excitation manifolds in the system. The three-local interaction is coherently tunable over several MHz via the coupler flux biases and can be turned off, which is important for applications in quantum annealing, analog quantum simulation, and gate-model quantum computation. |
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| Language | English | |||||
| Publishing date | 2022-12-10 | |||||
| Publishing country | United States | |||||
| Document type | Journal Article | |||||
| ZDB-ID | 208853-8 | |||||
| ISSN | 1079-7114 ; 0031-9007 | |||||
| ISSN (online) | 1079-7114 | |||||
| ISSN | 0031-9007 | |||||
| DOI | 10.1103/PhysRevLett.129.220501 | |||||
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| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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