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Area of Science:

  • Quantum physics
  • Atomic physics
  • Quantum information science

Background:

  • Controlling quantum systems with high precision is crucial for advancing quantum computing and simulation.
  • Rydberg states offer a promising platform for implementing quantum gates and creating entangled states in atom arrays.

Purpose of the Study:

  • To implement and characterize a novel protocol for arbitrary local control in a dipolar atom array.
  • To prepare and verify specific multi-atom entangled states, including W states and chiral states.
  • To explore the preparation of low-energy states in frustrated geometries for quantum simulations.

Main Methods:

  • Utilizing a combination of local addressing beams and global microwave fields for control.
  • Employing quantum state tomography to verify entanglement.
  • Leveraging multibasis, multibody observable measurements for state preparation and characterization.

Main Results:

  • Successfully prepared two distinct three-atom entangled states (W state and chiral state).
  • Demonstrated the ability to prepare correlated states in a frustrated geometry by tuning initial state symmetry.
  • Showcased preparation of states distinguished by chirality, a six-body observable.

Conclusions:

  • The developed protocol enables versatile local control over dipolar atom arrays.
  • This technique significantly expands the capabilities for quantum simulations, particularly for the dipolar XY model.
  • The protocol's generic nature allows for flexible manipulation of atom subgroups, paving the way for more complex quantum experiments.