Quenches to the critical point of the three-state Potts model: Matrix product state simulations and conformal field theory

2023-02-21T13:36:56+01:00Tags: , , , |

Authors: Robertson, Niall F.; Surace, Jacopo; Tagliacozzo, Luca Journal: PHYSICAL REVIEW B Publication date: 2022/05/04 DOI: 10.1103/PhysRevB.105.195103 Abstract: Conformal field theories (CFTs) have been used extensively to understand the physics of critical lattice models at equilibrium. However, the applicability of CFT calculations to the behavior of the lattice systems in the out-of-equilibrium setting is not [...]

Role of boundary conditions in the full counting statistics of topological defects after crossing a continuous phase transition

2023-02-21T13:36:21+01:00Tags: , , , |

Authors: Gomez-Ruiz, Fernando J.; Subires, David; del Campo, Adolfo Journal: PHYSICAL REVIEW B Publication date: 2022/10/10 DOI: 10.1103/PhysRevB.106.134302 Abstract: In a scenario of spontaneous symmetry breaking in finite time, topological defects are generated at a density that scales with the driving time according to the Kibble-Zurek mechanism (KZM). Signatures of universality beyond the KZM have [...]

Locality of spontaneous symmetry breaking and universal spacing distribution of topological defects formed across a phase transition

2023-02-21T13:36:16+01:00Tags: , , , |

Authors: del Campo, Adolfo; Javier Gomez-Ruiz, Fernando; Zhang, Hai-Qing Journal: PHYSICAL REVIEW B Publication date: 2022/10/11 DOI: 10.1103/PhysRevB.106.L140101 Abstract: The crossing of a continuous phase transition results in the formation of topological defects with a density predicted by the Kibble-Zurek mechanism (KZM). We characterize the spatial distribution of pointlike topological defects in the resulting nonequilibrium [...]

Production and processing of graphene and related materials

2021-02-12T10:08:11+01:00Tags: , |

Authors: Backes, Claudia; Abdelkader, Amr M.; Alonso, Concepcion; Andrieux-Ledier, Amandine; Arenal, Raul; Azpeitia, Jon; Balakrishnan, Nilanthy; Banszerus, Luca; Barjon, Julien; Bartali, Ruben; Bellani, Sebastiano; Berger, Claire; Berger, Reinhard; Ortega, M. M. Bernal; Bernard, Carlo; Beton, Peter H.; Beyer, Andre; Bianco, Alberto; Boggild, Peter; Bonaccorso, Francesco; Barin, Gabriela Borin; Botas, Cristina; Bueno, Rebeca A.; Carriazo, Daniel; [...]

Seeing topological edge and bulk currents in time-of-flight images

2021-02-12T10:08:02+01:00Tags: , , , |

Authors: Rubio-Garcia, Alvaro; Self, Chris N.; Jose Garcia-Ripoll, Juan; Pachos, Jiannis K. Contribution: Article Journal: PHYSICAL REVIEW B Publication date: 2020/07/23 DOI: 10.1103/PhysRevB.102.041123 Abstract: Here we provide a general methodology to directly measure the topological currents emerging in the optical lattice implementation of the Haldane model. Alongside the edge currents supported by gapless edge states, transverse [...]

Topological bulk states and their currents

2021-02-12T10:08:02+01:00Tags: , , , |

Authors: Self, Chris N.; Rubio-Garcia, Alvaro; Jose Garcia-Ripoll, Juan; Pachos, Jiannis K. Contribution: Article Journal: PHYSICAL REVIEW B Publication date: 2020/07/23 DOI: 10.1103/PhysRevB.102.045424 Abstract: We provide evidence that, alongside topologically protected edge states, two-dimensional Chern insulators also support localized bulk states deep in their valence and conduction bands. These states manifest when local potential gradients are [...]

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