Observation of magnon bound states in the long-range, anisotropic Heisenberg model
arXiv:2212.03899 · doi:10.1103/PhysRevX.13.031017
Abstract
Over the recent years coherent, time-periodic modulation has been established as a versatile tool for realizing novel Hamiltonians. Using this approach, known as Floquet engineering, we experimentally realize a long-ranged, anisotropic Heisenberg model with tunable interactions in a trapped ion quantum simulator. We demonstrate that the spectrum of the model contains not only single magnon excitations but also composite magnon bound states. For the long-range interactions with the experimentally realized power-law exponent, the group velocity of magnons is unbounded. Nonetheless, for sufficiently strong interactions we observe bound states of these unconventional magnons which possess a non-diverging group velocity. By measuring the configurational mutual information between two disjoint intervals, we demonstrate the implications of the bound state formation on the entanglement dynamics of the system. Our observations provide key insights into the peculiar role of composite excitations in the non-equilibrium dynamics of quantum many-body systems.
References in corpus (36)
- Evolution of Entanglement Entropy in One-Dimensional Systems
- Universal High-Frequency Behavior of Periodically Driven Systems: from Dynamical Stabilization to Floquet Engineering
- Measuring entanglement entropy through the interference of quantum many-body twins
- Effective quantum spin systems with ion traps
- Observation of entanglement propagation in a quantum many-body system
- Programmable Quantum Simulations of Spin Systems with Trapped Ions
- Non-local propagation of correlations in long-range interacting quantum systems
- Area laws in quantum systems: mutual information and correlations
- Repulsively bound atom pairs in an optical lattice
- Probing entanglement entropy via randomized measurements
- Self-Verifying Variational Quantum Simulation of the Lattice Schwinger Model
- Probing entanglement in a many-body-localized system
- Quantum dynamics of a single, mobile spin impurity
- Entanglement and thermodynamics after a quantum quench in integrable systems
- Microscopic observation of magnon bound states and their dynamics
- The entanglement of indistinguishable particles shared between two parties
- Real time confinement following a quantum quench to a non-integrable model
- Spread of correlations in long-range interacting quantum systems
- A Rigorous Theory of Many-Body Prethermalization for Periodically Driven and Closed Quantum Systems
- Symmetry-resolved entanglement in many-body systems
- Observation of Elastic Doublon Decay in the Fermi-Hubbard Model
- Microwave-engineering of programmable XXZ Hamiltonians in arrays of Rydberg atoms
- Lifetime of double occupancies in the Fermi-Hubbard model
- Observing emergent hydrodynamics in a long-range quantum magnet
- Observing complex bound states in the spin-1/2 Heisenberg XXZ chain using local quantum quenches
- Quasilocalized dynamics from confinement of quantum excitations
- Formation of robust bound states of interacting microwave photons
- Spectroscopy of interacting quasiparticles in trapped ions
- Digital-Analog Quantum Simulation of Spin Models in Trapped Ions
- Long-range Heisenberg models in quasi-periodically driven crystals of trapped ions
- Prethermalization in one-dimensional quantum many-body systems with confinement
- Experimental observation of thermalization with noncommuting charges
- Engineering dynamically decoupled quantum simulations with trapped ions
- Controlling long ion strings for quantum simulation and precision measurements
- Characterizing Topological Excitations of a Long-Range Heisenberg Model with Trapped Ions
- Bound state dynamics in the long-range spin- XXZ model
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- Realization of an extremely anisotropic Heisenberg magnet in Rydberg atom arrays
- Spectroscopy of elementary excitations from quench dynamics in a dipolar XY Rydberg simulator
- Proposal for many-body quantum chaos detection
- Deconfined Quantum Criticality in the long-range, anisotropic Heisenberg Chain
- Anisotropy-assisted thermodynamic advantage of a local-spin thermal machine
- Generation of complete graph states in a spin- Heisenberg chain with a globally optimized magnetic field
- Engineering frustrated Rydberg spin models by graphical Floquet modulation
- Universal quantum processors in spin systems via robust local pulse sequences
- Enhancing strength and range of atom-atom interaction in a coupled-cavity array via parametric drives
- Floquet-engineered Emergent Massive Nambu-Goldstone Modes
- Geodesic Algorithm for Unitary Gate Design with Time-Independent Hamiltonians
- Few-magnon excitations in a frustrated spin- ferromagnetic chain with single-ion anisotropy
- Evolution of two-magnon bound states in a higher-spin ferromagnetic chain with single-ion anisotropy: A complete solution
- Thermally induced localization of dopants in a magnetic spin ladder
- Absence of Correlations in Dissipative Interacting Qubits: a No-Go Theorem
- Ring-exchange physics in a chain of three-level ions
- Microwave Engineering of Tunable Spin Interactions with Superconducting Qubits
- Symmetry- and energy-resolved entanglement dynamics in a disordered Bose-Hubbard model
- A theory of quasiballistic spin transport
- Bound-state confinement after trap-expansion dynamics in integrable systems