Realization and detection of Kitaev quantum spin liquid with Rydberg atoms

• URL: http://arxiv.org/abs/2310.12905v2
• Date: Sat, 25 Nov 2023 03:27:27 GMT
• Title: Realization and detection of Kitaev quantum spin liquid with Rydberg atoms
• Authors: Yi-Hong Chen, Bao-Zong Wang, Ting-Fung Jeffrey Poon, Xin-Chi Zhou, Zheng-Xin Liu, and Xiong-Jun Liu
• Abstract summary: We realize and detect Kitaev chiral spin liquid in a deformed honeycomb array of Rydberg atoms. The gapped non-Abelian spin liquid phase is then obtained by introducing Zeeman fields. Our work broadens the range of exotic quantum many-body phases that can be realized and detected in atomic systems.
• Score: 9.54265820380506
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The Kitaev chiral spin liquid has captured widespread interest in recent decades because of its intrinsic non-Abelian excitations, yet the experimental realization is challenging. Here we propose to realize and detect Kitaev chiral spin liquid in a deformed honeycomb array of Rydberg atoms. Through a novel laser-assisted dipole-dipole interaction mechanism to generate both effective hopping and pairing terms for hard-core bosons, together with van der Waals interactions, we achieve the pure Kitaev model with high precision. The gapped non-Abelian spin liquid phase is then obtained by introducing Zeeman fields. Moreover, we propose innovative strategies to probe the chiral Majorana edge modes by light Bragg scattering and by imagining their chiral motion. Our work broadens the range of exotic quantum many-body phases that can be realized and detected in atomic systems, and makes an important step toward manipulating non-Abelian anyons.

Related papers

• Strong Spin-Motion Coupling in the Ultrafast Quantum Many-body Dynamics of Rydberg Atoms in a Mott-insulator Lattice [0.0]
  We show a strong spin-motion coupling emerging from the large variation of the interaction potential over the wavefunction spread. We propose a novel approach to tune arbitrarily the strength of the spin-motion coupling relative to the motional energy scale set by trapping potentials.
  arXiv  Detail & Related papers  (2023-11-27T07:04:02Z)
• Phonon-assisted coherent transport of excitations in Rydberg-dressed atom arrays [0.0]
  Polarons arise from the self-trapping interaction between electrons and lattice distortions in a solid. We present a microscopic model that exhibits a diverse range of dynamic behavior, arising from the intricate interplay between excitation-phonon coupling terms. This work contributes to the understanding of polaron dynamics with their potential applications in coherent quantum transport.
  arXiv  Detail & Related papers  (2023-07-10T10:40:47Z)
• Kagome qubit ice [55.73970798291771]
  Topological phases of spin liquids with constrained disorder can host a kinetics of fractionalized excitations. We present a realization of kagome spin ice in the superconducting qubits of a quantum annealer. We show evidence of both the Ice-I phase and an unconventional field-induced Ice-II phase.
  arXiv  Detail & Related papers  (2023-01-04T23:46:48Z)
• All-Optical Nuclear Quantum Sensing using Nitrogen-Vacancy Centers in Diamond [52.77024349608834]
  Microwave or radio-frequency driving poses a significant limitation for miniaturization, energy-efficiency and non-invasiveness of quantum sensors. We overcome this limitation by demonstrating a purely optical approach to coherent quantum sensing. Our results pave the way for highly compact quantum sensors to be employed for magnetometry or gyroscopy applications.
  arXiv  Detail & Related papers  (2022-12-14T08:34:11Z)
• Engineering and probing non-Abelian chiral spin liquids using periodically driven ultracold atoms [0.0]
  We propose a scheme to implement Kitaev's honeycomb model with cold atoms, based on a periodic (Floquet) drive. We derive the effective Hamiltonian to leading order in the inverse-frequency expansion, and show that the drive opens up a topological gap in the spectrum. We address the challenge of probing the physics of Majorana fermions, while having only access to the original composite spin degrees of freedom.
  arXiv  Detail & Related papers  (2022-11-17T18:51:49Z)
• Probing dynamics of a two-dimensional dipolar spin ensemble using single qubit sensor [62.997667081978825]
  We experimentally investigate individual spin dynamics in a two-dimensional ensemble of electron spins on the surface of a diamond crystal. We show that this anomalously slow relaxation rate is due to the presence of strong dynamical disorder. Our work paves the way towards microscopic study and control of quantum thermalization in strongly interacting disordered spin ensembles.
  arXiv  Detail & Related papers  (2022-07-21T18:00:17Z)
• Correlated steady states and Raman lasing in continuously pumped and probed atomic ensembles [68.8204255655161]
  We consider an ensemble of Alkali atoms that are continuously optically pumped and probed. Due to the collective scattering of photons at large optical depth, the steady state of atoms does not correspond to an uncorrelated tensor-product state. We find and characterize regimes of Raman lasing, akin to the model of a superradiant laser.
  arXiv  Detail & Related papers  (2022-05-10T06:54:54Z)
• 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)
• Quantum control of nuclear spin qubits in a rapidly rotating diamond [62.997667081978825]
  Nuclear spins in certain solids couple weakly to their environment, making them attractive candidates for quantum information processing and inertial sensing. We demonstrate optical nuclear spin polarization and rapid quantum control of nuclear spins in a diamond physically rotating at $1,$kHz, faster than the nuclear spin coherence time. Our work liberates a previously inaccessible degree of freedom of the NV nuclear spin, unlocking new approaches to quantum control and rotation sensing.
  arXiv  Detail & Related papers  (2021-07-27T03:39:36Z)
• Dynamics of a spin qubit in an optical dipole trap [0.0]
  We present a theoretical investigation of coherent dynamics of a spin qubit encoded in hyperfine sublevels of an alkali-metal atom in a far off-resonant optical dipole trap. We focus on various dephasing processes such as the residual motion of the atom, fluctuations of the trapping field and its incoherent scattering.
  arXiv  Detail & Related papers  (2021-05-25T11:01:55Z)
• Spin-mechanics with nitrogen-vacancy centers and trapped particles [0.0]
  We review recent experimental work in the field of spin-mechanics that employ the interaction between trapped particles and electronic spins in the solid state. Our focus is on the theoretical background close to the current experiments, as well as on the experimental limits, that will enable these systems to unleash their full potential.
  arXiv  Detail & Related papers  (2021-04-20T20:43:24Z)

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.