Results 41 to 50 of about 260,883 (285)

Topological quantum phase transition and the Berry phase near the Fermi surface in hole-doped quantum wells [PDF]

, 2007
We propose a topological quantum phase transition for quantum states with different Berry phases in hole-doped III-V semiconductor quantum wells with bulk and structure inversion asymmetry.
Abrikosov A. A., Berry M. V., Bin Zhou, Chao-Xing Liu, Meier F., Prange R. E., Rashba E. I., Rashba E. I., Shun-Qing Shen, Winkler R.   +9 more
core   +2 more sources

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

Scientific 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}

Physical 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, Sheng Li, Chiho Yoon, Ji Seop Oh, Han Wu, Xiaoyuan Liu, Nikhil Dhale, Yan-Feng Zhou, Yucheng Guo, Yichen Zhang, Makoto Hashimoto, Donghui Lu, Jonathan Denlinger, Xiqu Wang, Chun Ning Lau, Robert J. Birgeneau, Fan Zhang, Bing Lv, Ming Yi   +18 more
doaj   +1 more source

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

Advanced 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

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

Physical 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

Topological theory of phase transitions

Journal of Physics A: Mathematical and Theoretical, 2022
AbstractThe investigation of the Hamiltonian dynamical counterpart of phase transitions, combined with the Riemannian geometrization of Hamiltonian dynamics, has led to a preliminary formulation of a differential-topological theory of phase transitions.
Gori, M., Franzosi, R., Pettini, G., Pettini, M.   +3 more
openaire   +4 more sources

Nematic phase transitions in two-dimensional systems

Condensed 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

Thermal metal-insulator transition in a helical topological superconductor [PDF]

, 2012
Two-dimensional superconductors with time-reversal symmetry have a Z_2 topological invariant, that distinguishes phases with and without helical Majorana edge states.
A. R. Akhmerov, B. Béri, C. W. J. Beenakker, I. C. Fulga, J. Tworzydło, W. Press   +5 more
core   +3 more sources

Topological Lifshitz transitions [PDF]

Low Temperature Physics, 2017
Different types of Lifshitz transitions are governed by topology in momentum space. They involve the topological transitions with the change of topology of Fermi surfaces, Weyl and Dirac points, nodal lines, and also the transitions between the fully gapped states.
openaire   +6 more sources

Topology-induced inverse phase transitions [PDF]

EPL (Europhysics Letters), 2012
4 pages, 4 ...
D. De Martino, S. Bradde, DALL'ASTA, LUCA, M. Marsili   +3 more
openaire   +2 more sources