Results 61 to 70 of about 198,178 (161)

Research Paper:Time Evolution of Tight-Binding Model in the Presence of Electric Field [PDF]

فیزیک کاربردی ایران
Although many theorems exist about the characteristics of equilibrium quantum systems, the dynamical behavior of out-of-equilibrium systems is far less understood.
Saeid Ansari
doaj   +1 more source

Time-Dependent Real-Space Renormalization Group Method [PDF]

Journal of Sciences, Islamic Republic of Iran, 2005
In this paper, using the tight-binding model, we extend the real-space renormalization group method to time-dependent Hamiltonians. We drive the time-dependent recursion relations for the renormalized tight-binding Hamiltonian by decimating selective ...
doaj  

Coupled Resonator Acoustic Waveguides‐Based Acoustic Interferometers Designed within 2D Phononic Crystals: Experiment and Theory

Advanced Physics Research
The acoustic response of defect‐based acoustic interferometer‐like designs, known as Coupled Resonator Acoustic Waveguides (CRAWs), in 2D phononic crystals (PnCs) is reported.
David Martínez‐Esquivel, Rafael Alberto Méndez‐Sánchez, Hyeonu Heo, Angel Marbel Martínez‐Argüello, Miguel Mayorga‐Rojas, Arup Neogi, Delfino Reyes‐Contreras   +6 more
doaj   +1 more source

Tight-binding model for H3S

, 2015
H3S is a new superconductor with the highest critical temperature ever measured. Here we present a tight-binding (TB) model for this compound in the simple cubic structure. Given the good agreement between the the TB band structure and the LDA one, we use this model to investigate in detail the electron-phonon coupling.
Ortenzi L., Cappelluti E., Pietronero L.
openaire   +2 more sources

TBHubbard: tight-binding and extended Hubbard model dataset for metal-organic frameworks

Scientific Data
Metal-organic frameworks (MOFs) are porous materials composed of metal ions and organic linkers. Due to their chemical diversity, MOFs can support a broad range of applications in chemical separations.
Pamela Costa Carvalho, Federico Zipoli, Alan C. Duriez, Marco Antonio Barroca, Rodrigo Neumann Barros Ferreira, Barbara Jones, Benjamin Wunsch, Mathias Steiner   +7 more
doaj   +1 more source

Kwant: a software package for quantum transport

New Journal of Physics, 2014
Kwant is a Python package for numerical quantum transport calculations. It aims to be a user-friendly, universal, and high-performance toolbox for the simulation of physical systems of any dimensionality and geometry that can be described by a tight ...
Christoph W Groth, Michael Wimmer, Anton R Akhmerov, Xavier Waintal   +3 more
doaj   +1 more source

Dynamics of Open Tight-binding Model

, 2019
In this paper, we investigate the open tight-binding model with $N$ sites coupled to two reservoirs on its edges with the nonequilibrium Green function method to understand effects of open boundaries. As a result, we obtain an analytical expression of the electron density in the steady state and in the transient regime for $N \rightarrow \infty$ and at
Fukadai, Takahisa, Sasamoto, Tomohiro
openaire   +2 more sources

Complexity Measures in the Tight-Binding Model

Journal of Physics: Conference Series
Abstract The deformation of a wave packet is a significant topic in classical and quantum mechanics. Understanding this phenomenon is relevant in the study of various physical systems. In this work, we characterize the evolution of a highly localized wave packet in a tight-binding lattice.
Boris Atenas, Sergio Curilef
openaire   +1 more source

Feshbach Resonance in a Tight-Binding Model

, 2013
5 pages with 1 figures + 6 supplementary material pages with 4 figures.
Avishai, Y., Band, Y. B., Trippenbach, M.   +2 more
openaire   +2 more sources

Tight-binding model for opto-electronic properties of penta-graphene nanostructures. [PDF]

Sci Rep, 2018
Bravo S, Correa J, Chico L, Pacheco M.
europepmc   +1 more source