373 citations · 1.3k across the 27 of their papers we have counts for
27 papers
Divergence of Majorana-Phonon Scattering in Kitaev Quantum Spin Liquid
Haoxiang Li, A. Said, J. Q. Yan +5
Magnetoelastic interaction couples spin and lattice degrees of freedom and plays a key role in thermal transport properties of magnetic insulators. In the Kitaev quantum spin liqui…
Nearly-Resonant Crystalline-Phononic Coupling in Quantum Spin Liquid Candidate CsYbSe
Yun-Yi Pai, Claire E. Marvinney, Liangbo Liang +10
CsYbSe, a recently identified quantum spin liquid (QSL) candidate, exhibits strong crystal electric field (CEF) excitations. Here, we identify phonon and CEF modes with Raman s…
Fractional magnetoresistance oscillations in spin-triplet superconducting rings
Gábor B. Halász
Half-quantum vortices in spin-triplet superconductors are predicted to host Majorana zero modes and may provide a viable platform for topological quantum computation. Recent works…
Thermal anyon interferometry in phonon-coupled Kitaev spin liquids
Kai Klocke, Joel E. Moore, Jason Alicea +1
Recent theoretical studies inspired by experiments on the Kitaev magnet -RuCl highlight the nontrivial impact of phonons on the thermal Hall conductivity of chiral topologic…
Symmetric and spin liquids on the pyrochlore lattice
Chunxiao Liu, Gábor B. Halász, Leon Balents
The geometrically frustrated 3D pyrochlore lattice has been long predicted to host a quantum spin liquid, an intrinsic long-range entangled state with fractionalized excitations. T…
Theory of the Kitaev model in a [111] magnetic field
Shang-Shun Zhang, Gábor B. Halász, Cristian D. Batista
Recent numerical studies indicate that the antiferromagnetic Kitaev honeycomb lattice model undergoes a magnetic-field-induced quantum phase transition into a new spin-liquid phase…
Optical vortex manipulation for topological quantum computation
Chengyun Hua, Gábor B. Halász, Eugene Dumitrescu +2
Proposed approaches to topological quantum computation based on Majorana bound states may enable new paths to fault-tolerant quantum computing. Several recent experiments have sugg…
Multifunctional Superconducting Nanowire Quantum Sensors
Benjamin J Lawrie, Claire E. Marvinney, Yun-Yi Pai +6
Superconducting nanowire single photon detectors (SNSPDs) offer high-quantum-efficiency and low-dark-count-rate single photon detection. In a growing number of cases, large magneti…
Variational study of the Kitaev-Heisenberg-Gamma model
Shang-Shun Zhang, Gábor B. Halász, Wei Zhu +1
We compute the low-energy excitation spectrum and the dynamical spin structure factor of the Kitaev-Heisenberg-Gamma model through a variational approach based on the exact fractio…
Robustness of vortex-bound Majorana zero modes against correlated disorder
Casey Christian, Eugene F. Dumitrescu, Gábor B. Halász
We investigate the effect of correlated disorder on Majorana zero modes (MZMs) bound to magnetic vortices in two-dimensional topological superconductors. By starting from a lattice…
Vacancy-induced low-energy density of states in the Kitaev spin liquid
Wen-Han Kao, Johannes Knolle, Gábor B. Halász +2
The Kitaev honeycomb model has attracted significant attention due to its exactly solvable spin-liquid ground state with fractionalized Majorana excitations and its possible materi…
Toward Kitaev's sixteenfold way in a honeycomb lattice model
Shang-Shun Zhang, Cristian D. Batista, Gábor B. Halász
Kitaev's sixteenfold way is a classification of exotic topological orders in which gauge theory is coupled to Majorana fermions of Chern number . The distinc…
Real space Berry curvature of itinerant electron systems with spin-orbit interaction
Shang-Shun Zhang, Hiroaki Ishizuka, Hao Zhang +2
By considering an extended double-exchange model with spin-orbit coupling (SOC), we derive a general form of the Berry phase that electrons pick up when moving around a closed…
Crystal field splitting, local anisotropy, and low energy excitations in the quantum magnet YbCl
G. Sala, M. B. Stone, Binod K. Rai +9
We study the correlated quantum magnet, YbCl, with neutron scattering, magnetic susceptibility, and heat capacity measurements. The crystal field Hamiltonian is determined thro…
Competing orders in pyrochlore magnets from a spin liquid perspective
Chunxiao Liu, Gábor B. Halász, Leon Balents
The pyrochlore materials have long been predicted to harbor a quantum spin liquid, an intrinsic long-range-entangled state supporting fractionalized excitations. Existing pyrochlor…
Observing spin fractionalization in the Kitaev spin liquid via temperature evolution of indirect resonant inelastic x-ray scattering
Gábor B. Halász, Stefanos Kourtis, Johannes Knolle +1
Motivated by the ongoing effort to search for high-resolution signatures of quantum spin liquids, we investigate the temperature dependence of the indirect resonant inelastic x-ray…
Spin Liquid versus Spin Orbit Coupling on the Triangular Lattice
Jason Iaconis, Chunxiao Liu, Gábor B. Halász +1
In this paper, we explore the relationship between strong spin-orbit coupling and spin liquid physics. We study a very general model on the triangular lattice where spin-orbit coup…
Fractons from Partons
Timothy H. Hsieh, Gábor B. Halász
Fracton topological phases host fractionalized excitations that are either completely immobile or only mobile along certain lines or planes. We demonstrate how such phases can be u…
Coherent hole propagation in an exactly solvable gapless spin liquid
Gábor B. Halász, J. T. Chalker
We examine the dynamics of a single hole in the gapless phase of the Kitaev honeycomb model, focusing on the slow-hole regime where the bare hopping amplitude is much less than…
Doping a topological quantum spin liquid: slow holes in the Kitaev honeycomb model
Gábor B. Halász, J. T. Chalker, R. Moessner
We present a controlled microscopic study of mobile holes in the spatially anisotropic (Abelian) gapped phase of the Kitaev honeycomb model. We address the properties of (i) a sing…
Supra-oscillatory critical temperature dependence of Nb-Ho bilayers
F. Chiodi, J. D. S. Witt, R. G. J. Smits +7
We investigate the critical temperature Tc of a thin s-wave superconductor (Nb) proximity coupled to a helical rare earth ferromagnet (Ho). As a function of the Ho layer thickness,…
Magnetic-coupling-dependent spin-triplet supercurrents in helimagnet/ferromagnet Josephson junctions
Gábor B. Halász, M. G. Blamire, J. W. A. Robinson
The experimental achievements during the past year in demonstrating the existence of long-ranged spin-triplet supercurrents in ferromagnets proximity coupled to singlet superconduc…
Probing topological order with Rényi entropy
Gábor B. Halász, Alioscia Hamma
We present an analytical study of the quantum phase transition between the topologically ordered toric-code-model ground state and the disordered spin-polarized state. The phase tr…
Time-reversal invariant realization of the Weyl semimetal phase
Gábor B. Halász, Leon Balents
We propose a realization of the Weyl semimetal phase that is invariant under time reversal and occurs due to broken inversion symmetry. We consider both a simple superlattice model…