Articles with "kitaev model" as a keyword



Periodically driven three-dimensional Kitaev model

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Published in 2024 at "Physica Scripta"

DOI: 10.1088/1402-4896/ad3030

Abstract: We study the dynamics of a three-dimensional generalization of Kitaev’s honeycomb lattice spin model (defined on the hyperhoneycomb lattice) subjected to a harmonic driving of J z , one of the three types of spin-couplings… read more here.

Keywords: driven three; kitaev model; periodically driven; model ... See more keywords

Anyonic quantum multipartite maskers in the Kitaev model

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Published in 2024 at "Physical Review A"

DOI: 10.1103/physreva.109.032421

Abstract: The structure of quantum mechanics forbids a bipartite scenario for masking quantum information, however, it allows multipartite maskers. The Latin squares are found to be closely related to a series of tripartite maskers. This adds… read more here.

Keywords: anyonic quantum; kitaev model; multipartite maskers; model ... See more keywords

Majorana-magnon crossover by a magnetic field in the Kitaev model: Continuous-time quantum Monte Carlo study

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Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.101.100408

Abstract: Kitaev quantum spin liquids host Majorana fermions via the fractionalization of spins. In a magnetic field, the Majorana fermions were predicted to comprise a topological state, which has attracted great attention by the discovery of… read more here.

Keywords: field; kitaev model; magnetic field; temperature ... See more keywords

Phase diagram and thermal Hall conductivity of the spin-liquid Kekulé-Kitaev model

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Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.101.115116

Abstract: In this work we study the phase diagram of the Kekul\'e-Kitaev model. The model is defined on a honeycomb lattice with bond-dependent anisotropic exchange interactions, making it exactly solvable in terms of Majorana representation of… read more here.

Keywords: spin liquid; phase; phase diagram; kitaev model ... See more keywords

Chiral bosonic quantum spin liquid in the integer-spin Heisenberg-Kitaev model

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Published in 2024 at "Physical Review B"

DOI: 10.1103/physrevb.110.134402

Abstract: Motivated by the possibility of finding a bosonic quantum spin liquid in the integer spin-$S$ Heisenberg-Kitaev model on the honeycomb lattice, we derive a Schwinger boson mean field theory involving both singlet and triplet pairing… read more here.

Keywords: spin liquid; spin; quantum spin; kitaev model ... See more keywords

Kitaev model on Hurwitz hyperbolic tilings: A non-Abelian gapped chiral spin liquid

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Published in 2024 at "Physical Review B"

DOI: 10.1103/physrevb.111.l060408

Abstract: We study the Kitaev model on the trivalent heptagonal Hurwitz hyperbolic tiling. The presence of odd-length loops in the tiling is responsible for a spontaneous time-reversal symmetry breaking. Interestingly, at the isotropic point, the two… read more here.

Keywords: kitaev model; gapped chiral; chiral spin; hurwitz hyperbolic ... See more keywords

Successive Majorana topological transitions driven by a magnetic field in the Kitaev model

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Published in 2018 at "Physical Review B"

DOI: 10.1103/physrevb.98.060416

Abstract: We study quantum phase transitions in the honeycomb Kitaev model under a magnetic field, focusing on the topological nature of Majorana fermion excitations. We find a gapless phase between the low-field gapless quantum spin liquid… read more here.

Keywords: field; kitaev model; majorana; magnetic field ... See more keywords

Tailoring electronic properties

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Published in 2020 at "Science"

DOI: 10.1126/science.367.6473.37-g

Abstract: Physics The layered material α-RuCl3 has piqued the interest of physicists as a potential platform for the so-called Kitaev model—a type of quantum spin liquid that hosts exotic excitations. However, in addition to the magnetic… read more here.

Keywords: tailoring electronic; electronic properties; kitaev model;

Spin–Spin Correlations in the Kitaev Model at Finite Temperatures: Approximate and Exact Results via Green’s Function Equation of Motion

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Published in 2024 at "Journal of the Physical Society of Japan"

DOI: 10.7566/jpsj.93.083703

Abstract: The Kitaev model, defined on a honeycomb lattice, features an exactly solvable ground state with fractionalized Majorana fermion excitations, which can potentially form non-Abelian anyons crucial for fault-tolerant topological quantum computing. Although Majorana fermions are… read more here.

Keywords: kitaev model; green function; model; model finite ... See more keywords