Dynamics of antiferromagnetic Dimers in Rydberg Atom Chains
arXiv:2601.15866 · doi:10.1103/7z6f-d8yf
Abstract
We investigate the dynamics of antiferromagnetic dimers within a Rydberg atom chain in the regime where laser detuning compensates for nearest-neighbor (NN) interactions. Using an effective PXQ model, we demonstrate that the associated Hilbert space decomposes into disconnected, dimer-conserving subspaces. The classification of these subspaces is provided, and the computational basis states spanning them are identified. Through a combination of analytical mapping and numerical simulations, we compare the dynamics of the PXQ model with those of the full Rydberg atom chain. The deviations are attributed to two factors, laser-induced leakage from the constrained Hilbert subspace and the influence of long-range interactions beyond the NN limit. Our results indicate that subspace leakage can be mitigated by increasing the NN interaction strength. While this simultaneously amplifies the effects of long-range interactions, the conservation of the dimer number remains. Our study opens up possibilities for exploring the dynamics of antiferromagnetic dimers using the Rydberg atom quantum simulator.
10 pages, 10 figures
References in corpus (23)
- Probing many-body dynamics on a 51-atom quantum simulator
- Many body localization and thermalization in quantum statistical mechanics
- Logical quantum processor based on reconfigurable atom arrays
- Emergent SU(2) dynamics and perfect quantum many-body scars
- Competing density-wave orders in a one-dimensional hard-boson model
- Quantum Many-Body Scar States with Emergent Kinetic Constraints and Finite-Entanglement Revivals
- Localization phenomena in interacting Rydberg lattice gases with position disorder
- Exact many-body scars and their stability in constrained quantum chains
- Rydberg superatoms: An artificial quantum system for quantum information processing and quantum optics
- Continuous operation of a coherent 3,000-qubit system
- Observation of quantum thermalization restricted to Hilbert space fragments
- Squeezing Quantum Many-Body Scars
- Exploring Hilbert-Space Fragmentation on a Superconducting Processor
- Volume-entangled exact scar states in the PXP and related models in any dimension
- Quantum Many-Body Scars beyond the PXP model in Rydberg simulators
- Genuine quantum scars in many-body spin systems
- Numerical investigation of quantum phases and phase transitions in a two-leg ladder of Rydberg atoms
- Probing Hilbert Space Fragmentation with Strongly Interacting Rydberg Atoms
- Unraveling PXP Many-Body Scars through Floquet Dynamics
- Observation of slow relaxation due to Hilbert space fragmentation in strongly interacting Bose-Hubbard chains
- Tricritical Kibble-Zurek scaling in Rydberg atom ladders
- Integrable models on Rydberg atom chains
- Statistical Localization in a Rydberg Simulator of Lattice Gauge Theory