Results 81 to 90 of about 252,932 (279)

Cross‐Phase Modulation via Time‐Varying Epsilon‐Near‐Zero Metasurfaces

Advanced Optical Materials, EarlyView.
Time‐varying epsilon‐near‐zero metasurfaces are shown to enable cross‐phase modulation beyond conventional ENZ excitation. By engineering dual absorption bands and exploiting oblique ultrafast pumping, large and broadband frequency translations are achieved at low pump energies.
Rakesh Dhama, Md Imran Hossain, Jesse Pietila, Thomas Fordell, Humeyra Caglayan   +4 more
wiley   +1 more source

Layer‐Dependent Antiferromagnetic Chern and Axion Insulating States in UOTe

Advanced Science, EarlyView.
Layer‐dependent topological phases are identified in the van der Waals antiferromagnet UOTe. Ab initio calculations reveal bilayer UOTe as a rare example of high‐temperature antiferromagnetic Chern insulator with quantized Hall conductivity and near‐zero net magnetization, while odd‐layer films exhibit axion‐insulator‐like behavior with quantized spin ...
Sougata Mardanya, Barun Ghosh, Mengke Liu, Christopher Broyles, Junyeong Ahn, Kai Sun, Jennifer E. Hoffman, Sheng Ran, Arun Bansil, Su‐Yang Xu, Sugata Chowdhury   +10 more
wiley   +1 more source

Some statistical aspects of the spinor field Fermi-Bose duality

Condensed Matter Physics, 2012
The structure of 29-dimensional extended real Clifford-Dirac algebra, which has been introduced in our paper Phys. Lett. A, 2011, Vol. 375, 2479, is considered in brief.
V.M. Simulik, I.Yu. Krivsky, I.L. Lamer
doaj   +1 more source

One-Dimensional Scattering of Fermions on δ-Impurities

Frontiers in Physics, 2019
We study the spectrum of the 1D Dirac Hamiltonian encompassing the bound and scattering states of a fermion distorted by a static background built from δ-function potentials.
Juan Mateos Guilarte, Jose M. Munoz-Castaneda, Irina Pirozhenko, Irina Pirozhenko, Lucia Santamaría-Sanz   +4 more
doaj   +1 more source

Bound state solutions of a Dirac particle undergoing a tensor interaction potentials via asymptotic iteration method

Journal of Taibah University for Science, 2020
Bound state solutions of a quantum Dirac particle with a tensor interactions terms are investigated by Asymptotic Iteration Method. The eigenvalues are calculated for tensor potentials and formulated into closed forms.
K. S. Alsadi
doaj   +1 more source

Squaring the Dirac Equations

Russian Physics Journal, 2018
A complete solution of the problem of squaring the Dirac equation with arbitrary external electromagnetic field is expounded.
openaire   +2 more sources

Dual‐Modulated Vertically Stacked Transistors With Fully Laminated Plate‐Type Architecture Featuring Nanoscale Channel Length

Advanced Science, EarlyView.
A new vertical transistor design with a dual‐modulation strategy is proposed to overcome the limitations of conventional transistors. This architecture uses a micro‐hole patterned electrode and a graphene electrode to enhance channel control and incorporates a leakage blocking layer to suppress off‐state current.
Goeun Pyo, Su Jin Heo, Jeonggyun Jang, Hongki Kang, Byeongmoon Lee, Hyuk‐Jun Kwon, Jae Eun Jang   +6 more
wiley   +1 more source

Ultrafast Multilevel Switching and Synaptic Behavior in a Planar Quantum Topological Memristor

Advanced Science, EarlyView.
Dry‐transferred Bi2Te3 layers enable a planar quantum topological memristor framework. In‐plane topological surface states facilitate ultrafast & low‐power operations. Coexisting analog and digital modes support current‐controlled multilevel states. PQTM exhibits 105 s retention, 103 cycles endurance, and reproducibility across 24 devices.
Mamoon Ur Rashid, Usman Safder, Sobia Ali Khan, Anh‐Tuan Pham, Muhammad Sheeraz, Nguyen‐Hoang Dang, Duy Le Thanh, Zeeshan Tahir, Faisal Maqbool, Koo‐Hyun Chung, Sunglae Cho, Jungdae Kim, Yong Soo Kim   +12 more
wiley   +1 more source

Dirac Equation in Kerr Geometry [PDF]

, 1999
We are familiar with Dirac equation in flat space by which we can investigate the behaviour of half-integral spin particle. With the introduction of general relativistic effects the form of the Dirac equation will be modified.
Mukhopadhyay, Banibrata
core   +1 more source

Random Time‐Space Coding Metasurfaces for Spatial Control of the Temporal Statistics of Electromagnetic Fields

Advanced Science, EarlyView.
A probabilistic framework based on random time‐space coding metasurfaces enables control of the spatial distribution of electromagnetic fields temporal statistics. By tailoring the marginal and joint distributions of random codes, electromagnetic fields with desired mean and variance patterns are realized, enabling simultaneous transmission and jamming.
Jia Cheng Li, Jiang Han Bao, Che Liu, Tie Jun Cui   +3 more
wiley   +1 more source