Results 41 to 50 of about 2,377,765 (304)

Prediction of new topological superconductor candidate 1T-Ti(Se_{1−y}Te_{y})_{2}

open access: yesPhysical Review Research, 2022
Topological superconductivity has attracted intensive interest for its ability to host the Majorana zero mode and its implementation in topological quantum computations.
Wenjun Liu   +4 more
doaj   +1 more source

Topological Quantum Phase Transition and Local Topological Order in a Strongly Interacting Light-Matter System

open access: yesScientific Reports, 2017
An attempt is made to understand the topological quantum phase transition, emergence of relativistic modes and local topological order of light in a strongly interacting light-matter system.
Sujit Sarkar
doaj   +1 more source

Room-Temperature Topological Phase Transition in Quasi-One-Dimensional Material Bi_{4}I_{4}

open access: yesPhysical Review X, 2021
Quasi-one-dimensional (1D) materials provide a superior platform for characterizing and tuning topological phases for two reasons: (i) existence for multiple cleavable surfaces that enables better experimental identification of topological classification
Jianwei Huang   +18 more
doaj   +1 more source

Two dimensional Floquet topological states in a driven graphene lattice

open access: yesResults in Physics, 2023
The study of topological phase transitions induced by external fields in quantum systems is of significant interest in physics, as it enables the exploration of various topological nontrivial phenomena in a controllable manner.
Di Zhang   +3 more
doaj   +1 more source

Light‐Induced Quantum Anomalous Hall Effect on the 2D Surfaces of 3D Topological Insulators

open access: yesAdvanced Science, 2021
Quantum anomalous Hall (QAH) effect generates quantized electric charge Hall conductance without external magnetic field. It requires both nontrivial band topology and time‐reversal symmetry (TRS) breaking.
Haowei Xu, Jian Zhou, Ju Li
doaj   +1 more source

Grain-boundary topological phase transitions [PDF]

open access: yesProceedings of the National Academy of Sciences, 2020
Significance We reveal the existence of a topological phase transition (Kosterlitz–Thouless type) in grain boundaries (GBs)—important internal surfaces in crystalline materials. GB dynamics are controlled by the formation/migration of line defects (disconnections) with dislocation and step character.
Kongtao Chen   +2 more
openaire   +4 more sources

Topological States of Matter [PDF]

open access: yes, 2012
My research program is focused on the study of elastic deformation and topological defects in two materials: graphene and topological insulators. In both systems at low energies the electrons have a nearly linear spectrum, i.e.
Parente, Vincenzo
core   +1 more source

Bandgap-assisted quantum control of topological edge states in a cavity

open access: yesPhysical Review Research, 2020
Quantum matter with exotic topological order has potential applications in quantum computation. However, in present experiments, the manipulations on topological states are still challenging.
Wei Nie, Yu-xi Liu
doaj   +1 more source

Topology and Phase Transitions: Paradigmatic Evidence [PDF]

open access: yesPhysical Review Letters, 2000
We report upon the numerical computation of the Euler characteristic χ(a topologic invariant) of the equipotential hypersurfaces Σ_v of the configuration space of the two-dimensional lattice $ϕ^4$ model. The pattern χ(Σ_v) vs. v (potential energy) reveals that a major topology change in the family {Σ_v}_{v\in R} is at the origin of the phase transition
Franzosi, R., Pettini, M., Spinelli, L.
openaire   +5 more sources

Nematic phase transitions in two-dimensional systems

open access: yesCondensed Matter Physics, 2005
Simulations of nematic-isotropic transition of liquid crystals in two dimensions are performed using an O(2) vector model characterized by non linear nearest neighbour spin interaction governed by the fourth Legendre polynomial P4.
B.Berche, R.Paredes
doaj   +1 more source

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