Synthesizing Five-Body Interaction in a Superconducting Quantum Circuit. Academic Article uri icon

abstract

  • Synthesizing many-body interaction Hamiltonians is a central task in quantum simulation. However, it is challenging to synthesize Hamiltonians that have more than two spins in a single term. Here we synthesize m-body spin-exchange Hamiltonians with m up to 5 in a superconducting quantum circuit by simultaneously exciting multiple independent qubits with time-energy correlated photons generated from a qudit. The dynamic evolution of the m-body interaction is governed by the Rabi oscillation between two m-spin states, in which the states of each spin are different. We demonstrate the scalability of our approach by comparing the influence of noises on the three-, four- and five-body interaction and building a many-body Mach-Zehnder interferometer which potentially has a Heisenberg-limit sensitivity. This study paves a way for quantum simulation involving many-body interaction Hamiltonians such as lattice gauge theories in quantum circuits.

published proceedings

  • Phys Rev Lett

altmetric score

  • 1.75

author list (cited authors)

  • Zhang, K. e., Li, H., Zhang, P., Yuan, J., Chen, J., Ren, W., ... Scully, M. O.

citation count

  • 7

complete list of authors

  • Zhang, Ke||Li, Hekang||Zhang, Pengfei||Yuan, Jiale||Chen, Jinyan||Ren, Wenhui||Wang, Zhen||Song, Chao||Wang, Da-Wei||Wang, H||Zhu, Shiyao||Agarwal, Girish S||Scully, Marlan O

publication date

  • May 2022