Haldane model at finite temperature
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Statistical Mechanics: Theory and Experiment"
DOI: 10.1088/1742-5468/ab33f8
Abstract: We consider the Haldane model, a 2D topological insulator whose phase is defined by the Chern number. We study its phases as temperature varies by means of the Uhlmann number, a finite temperature generalization of… read more here.
Keywords: finite temperature; number; haldane model; temperature ... See more keywords
Correspondence between a shaken honeycomb lattice and the Haldane model
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.96.053603
Abstract: We investigate the correspondence between the tight-binding Floquet Hamiltonian of a periodically modulated honeycomb lattice and the Haldane model. We show that - though the two systems share the same topological phase diagram, as reported… read more here.
Keywords: correspondence; honeycomb lattice; lattice haldane; haldane model ... See more keywords
Unconventional phases in a Haldane model of dice lattice
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.235406
Abstract: We propose a Haldane-like model of dice lattice analogous to graphene and explore its topological properties within the tight-binding formalism. The topological phase boundary of the system is identical to that of Haldane model of… read more here.
Keywords: model dice; system; dice lattice; band ... See more keywords
Dissipative preparation of many-body Floquet Chern insulators
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.184302
Abstract: Considering coupling to a microstructured bath as a relaxation mechanism in a periodically driven dissipative Haldane model, we establish that the system may be tuned to a stroboscopic topological steady state at all finite temperatures.… read more here.
Keywords: many body; body; topology; haldane model ... See more keywords
Impurity-induced current in a Chern insulator
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.115434
Abstract: Chern insulators arguably provide the simplest examples of topological phases. They are characterized by a topological invariant and can be identified by the presence of protected edge states. In this article, we show that a… read more here.
Keywords: bound states; impurity induced; chern insulator; impurity ... See more keywords
First Principles Calculation of the Topological Phases of the Photonic Haldane Model
Sign Up to like & getrecommendations! Published in 2021 at "Symmetry"
DOI: 10.3390/sym13112229
Abstract: Photonic topological materials with a broken time-reversal symmetry are characterized by nontrivial topological phases, such that they do not support propagation in the bulk region but forcibly support a nontrivial net number of unidirectional edge-states… read more here.
Keywords: photonic haldane; topological phases; haldane model; haldane ... See more keywords
Floquet Engineered Quadri-partite Lattice System as an Extension of the Topological Haldane Model
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the Physical Society of Japan"
DOI: 10.7566/jpsj.87.034711
Abstract: We theoretically study a two-dimensional quadri-partite system that is an extension of a topological Haldane model, in the sense that the topological properties change as a consequence of time-reversal and/or spatial-inversion symmetry breaking. The former… read more here.
Keywords: system; quadri partite; extension topological; system extension ... See more keywords