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Synthesizing five-body interaction in a superconducting quantum circuit
- Source :
- Phys. Rev. Lett. 128, 190502 (2022)
- Publication Year :
- 2021
-
Abstract
- Synthesizing many-body interaction Hamiltonian is a central task in quantum simulation. However, it is challenging to synthesize interactions including more than two spins. Borrowing tools from quantum optics, we synthesize five-body spin-exchange interaction in a superconducting quantum circuit by simultaneously exciting four independent qubits with time-energy correlated photon quadruples generated from a qudit. During the dynamic evolution of the five-body interaction, a Greenberger-Horne-Zeilinger state is generated in a single step with fidelity estimated to be $0.685$. We compare the influence of noise on the three-, four- and five-body interaction as a step toward answering the question on the quantum origin of chiral molecules. We also demonstrate a many-body Mach-Zehnder interferometer which potentially has a Heisenberg-limit sensitivity. This study paves a way for quantum simulation involving many-body interactions and high excited states of quantum circuits.<br />Comment: 6 pages, 3 figures
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 128, 190502 (2022)
- Publication Type :
- Report
- Accession number :
- edsarx.2109.00964
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.128.190502