Rydberg Platform for Nonergodic Chiral Quantum Dynamics

Area of Science:

• Atomic, Molecular, and Optical Physics
• Quantum Many-Body Physics
• Quantum Information Science

Background:

• Rydberg atoms offer a promising platform for quantum simulations due to strong interactions.
• Engineering chiral interactions is crucial for exploring complex quantum phenomena and developing novel quantum technologies.
• Kinetically constrained models with unidirectional character are essential for understanding non-equilibrium quantum dynamics.

Purpose of the Study:

• To propose and investigate a mechanism for engineering chiral interactions in Rydberg atom arrays.
• To explore the many-body dynamics of kinetically constrained models with unidirectional character using this mechanism.
• To demonstrate the robustness and tunability of chiral interactions in the presence of noise.

Main Methods:

• Utilizing a directional antiblockade condition in Rydberg atoms to induce chirality.
• Employing scalable neutral atom arrays for simulating many-body dynamics.
• Tuning the strength of two driving fields to observe non-ergodic behaviors like scars, confinement, and localization.
• Investigating the persistence of the mechanism under classical noise.

Main Results:

• Demonstrated a scalable mechanism for engineering chiral interactions in Rydberg atoms.
• Observed non-ergodic behaviors (scars, confinement, localization) by tuning driving fields.
• Showcased the tunability of interaction chirality and robustness against classical noise.

Conclusions:

• The proposed mechanism provides a novel route to engineer chiral interactions in neutral atom arrays.
• This work opens new possibilities for exploring directional, strongly correlated quantum mechanics.
• The findings are relevant for quantum simulation, quantum computing, and fundamental studies of non-ergodic dynamics.