A Dipolar Chiral Spin Liquid on the Breathed Kagome Lattice
- URL: http://arxiv.org/abs/2603.25784v1
- Date: Thu, 26 Mar 2026 18:00:00 GMT
- Title: A Dipolar Chiral Spin Liquid on the Breathed Kagome Lattice
- Abstract summary: Long-range dipolar antiferromagnetic interactions on a breathed Kagome lattice can be leveraged to stabilize a chiral spin liquid.<n>We propose direct, experimentally viable measurements of the chiral edge mode in both Rydberg atom and ultracold polar molecule arrays.
- Score: 0.09332987715848716
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Continuous control over lattice geometry, when combined with long-range interactions, offers a powerful yet underexplored tool to generate highly frustrated quantum spin systems. By considering long-range dipolar antiferromagnetic interactions on a breathed Kagome lattice, we demonstrate how these tools can be leveraged to stabilize a chiral spin liquid. We support this prediction with large-scale density-matrix renormalization group calculations and explore the surrounding phase diagram, identifying a route to adiabatic preparation via a locally varying magnetic field. At the same time, we identify the relevant low-energy degrees of freedom in each unit cell, providing a complementary language to study the chiral spin liquid. Finally, we carefully analyze its stability and signatures in finite-sized clusters, proposing direct, experimentally viable measurements of the chiral edge mode in both Rydberg atom and ultracold polar molecule arrays.
Related papers
- Quantum criticality and factorization in a constrained Rydberg spin chain [3.5512194722857804]
We investigate a one-dimensional constrained quantum spin chain realized in coherently driven Rydberg-atom arrays.<n>Projecting onto the blockade-constrained Hilbert space yields an effective model in which local and nonlocal quantum fluctuations compete on equal footing.
arXiv Detail & Related papers (2026-05-26T15:23:25Z) - Symmetry-protected topology and deconfined solitons in a multi-link $\mathbb{Z}_2$ gauge theory [45.88028371034407]
We study a $mathbbZ$ lattice gauge theory defined on a multi-graph with links that can be visualized as great circles of a spherical shell.<n>We show that this leads to state-dependent tunneling amplitudes underlying a phenomenon analogous to the Peierls instability.<n>By performining a detailed analysis based on matrix product states, we prove that charge deconfinement emerges as a consequence of charge-fractionalization.
arXiv Detail & Related papers (2026-03-02T22:59:25Z) - Dirac Spin Liquid Candidate in a Rydberg Quantum Simulator [2.686043216059867]
We experimentally investigate a frustrated spin-exchange antiferromagnet in a quantum simulator composed of N = 114 dipolar Rydberg atoms arranged into a kagome array.<n>Motivated by a recent theoretical proposal of a gapless U(1) Dirac spin liquid ground state, we use local addressing to adiabatically prepare low-energy states.<n>Our results establish Rydberg atom arrays as a promising platform for the preparation and microscopic characterization of quantum spin liquid candidates.
arXiv Detail & Related papers (2026-02-15T22:14:41Z) - Emergence of a Luttinger Liquid Phase in an Array of Chiral Molecules [0.0]
We propose a robust platform for simulating chiral quantum magnetism using linear arrays of trapped asymmetric top molecules.<n>By mapping the Stark-dressed rotational states onto an effective spin-$1/2$ subspace, we rigorously derive a generalized $XXZ$ Heisenberg Hamiltonian governing the underlying many-body dynamics.<n>Our results establish 1,2-propanediol arrays as a versatile quantum simulator, providing a direct microscopic link between molecular chirality and topological many-body phases.
arXiv Detail & Related papers (2026-02-10T17:23:36Z) - Robust AC vector sensing at zero magnetic field with pentacene [45.7221176995052]
Quantum sensors based on electronic spins have emerged as powerful probes of microwave-frequency fields.<n>Here, we demonstrate microwave vector magnetometry using the photoexcited spin triplet of pentacene molecules.
arXiv Detail & Related papers (2025-12-06T03:49:12Z) - Exploring molecular supersolidity via exact and mean-field theories: single microwave shielding [0.0]
We develop an extended Gross-Pitaevskii framework for bosonic molecules under single microwave shielding.<n>We benchmark it against exact Quantum Monte Carlo simulations.<n>We show that elliptic microwave polarization induces direction-dependent superfluidity--absent in cylindrically symmetric systems.
arXiv Detail & Related papers (2025-09-22T17:25:39Z) - Emergent Kitaev materials in synthetic Fermi-Hubbard bilayers [45.88028371034407]
Bond-directional spin-spin interactions in a Fermi-Hubbard bilayer can be realized with ultracold fermions in Raman optical lattices.<n>We analyze the Fermi-liquid and Mott-insulating phases, highlighting a correspondence between Dirac and Majorana quasi-particles.<n>Our results establish that cold-atom quantum simulators based on Raman optical lattices can be a playground for extended Kitaev models.
arXiv Detail & Related papers (2025-04-22T10:07:56Z) - Dirac spin liquid in quantum dipole arrays [0.899696753483479]
We predict that the gapless(1)$ Dirac spin naturally emerges in a two-dimensional quantum array.
We propose an approach to near-term quantum simulators tailored to near-term perturbation modes.
arXiv Detail & Related papers (2024-05-31T18:00:01Z) - Tuning long-range fermion-mediated interactions in cold-atom quantum
simulators [68.8204255655161]
Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior.
Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
arXiv Detail & Related papers (2022-03-31T13:32:12Z) - Rotating Majorana Zero Modes in a disk geometry [75.34254292381189]
We study the manipulation of Majorana zero modes in a thin disk made from a $p$-wave superconductor.
We analyze the second-order topological corner modes that arise when an in-plane magnetic field is applied.
We show that oscillations persist even in the adiabatic phase because of a frequency independent coupling between zero modes and excited states.
arXiv Detail & Related papers (2021-09-08T11:18:50Z) - Visualizing spinon Fermi surfaces with time-dependent spectroscopy [62.997667081978825]
We propose applying time-dependent photo-emission spectroscopy, an established tool in solid state systems, in cold atom quantum simulators.
We show in exact diagonalization simulations of the one-dimensional $t-J$ model that the spinons start to populate previously unoccupied states in an effective band structure.
The dependence of the spectral function on the time after the pump pulse reveals collective interactions among spinons.
arXiv Detail & Related papers (2021-05-27T18:00:02Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.