Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
In this paper, we consider there exist two types of fundamental quasihole excitation in the fractional quantum spin Hall state and investigate their topological properties by both Chern-Simons field theory and the Berry phase technique. By the two different techniques, we obtain the identical charge and statistical angle for each type of quasihole, as well as the identical mutual statistics between two different types of quasihole excitation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1088/0953-8984/24/16/165503 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Detecting the Six Polytypes of Five-Layer Graphite.
Adv Mater
September 2025
School of Physics and Astronomy, Tel Aviv University, Tel Aviv, 6997801, Israel.
Graphene layers can assemble in two shifted metastable positions per interface, leading to eight possible structural arrangements in five-layer graphene, six of which correspond to distinct periodic crystals. These polytypes exhibit diverse symmetries, interlayer electronic hybridization, van der Waals adhesion, and optical responses. Arrangements lacking inversion [I] and mirror [M] symmetries host intrinsic polarizations, while those with sufficiently flat electronic bands display orbital magnetization, unconventional superconductivity, and anomalous fractional quantum Hall states.
View Article and Find Full Text PDFElectrically Induced Bulk and Edge Excitations in the Fractional Quantum Hall Regime.
Phys Rev Lett
August 2025
Tohoku University, Department of Physics, Sendai 980-8578, Japan.
We apply a voltage pulse to electrically excite the incompressible region of a two-dimensional electron liquid in the ν=2/3 fractional quantum Hall state and investigate the collective excitations in both the bulk and edge via photoluminescence spectral energy shifts. Introducing an offset in the voltage pulse significantly enhances the excitation signal. Real-space and time-resolved measurements reveal the dynamics of the bulk excitations, with an estimated group velocity of approximately 3×10^{4} m/s.
View Article and Find Full Text PDFEfficient Free Energies from a Simplified Electrostatic Embedding QM/MM Approach Based on Electrostatic Potential Fitted Operators.
J Chem Inf Model
September 2025
Aix Marseille Univ, CNRS, ICR, Marseille 13013, France.
Periodic boundary condition (PBC)-adapted formulations of quantum mechanics/molecular mechanics (QM/MM) methods allow for the accurate computation of free energies, provided there is sufficient phase-space sampling. In this work, we develop a robust and efficient QM/MM approach based on electrostatic potential fitted (ESPF) charge operators. The method combines smooth particle-mesh Ewald summation to describe QM-MM electrostatic interactions and the Ewald pair potential to treat long-range QM-QM interactions.
View Article and Find Full Text PDFCharge Transfer-Stabilized SiP Monolayer: An Unexpected Two-Dimensional Honeycomb on Au(111).
Nano Lett
September 2025
Department of Physics and Guangdong Basic Research Center of Excellence for Quantum Science, Southern University of Science and Technology, Shenzhen 518055, China.
Exploring two-dimensional (2D) honeycomb structures beyond naturally layered materials is increasingly attracting interest, yet discoveries remain limited. Traditional methods often prioritize thermodynamic and dynamic stability, overlooking many inherently unstable materials such as those deviating from electron counting rules. Here, we challenge these traditional limitations by using the Si-P system as a case study.
View Article and Find Full Text PDFProximity screening greatly enhances electronic quality of graphene.
Nature
August 2025
Department of Physics and Astronomy, University of Manchester, Manchester, UK.
The electronic quality of two-dimensional systems is crucial when exploring quantum transport phenomena. In semiconductor heterostructures, decades of optimization have yielded record-quality two-dimensional gases with transport and quantum mobilities reaching close to 10 and 10 cm V s, respectively. Although the quality of graphene devices has also been improving, it remains comparatively lower.
View Article and Find Full Text PDF