Enhancing a Many-Body Dipolar Rydberg Tweezer Array with Arbitrary Local Controls

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.