• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Quantum interference in the classically forbidden region: A parametric oscillator
Quantum interference in the classically forbidden region: A parametric oscillator

... results are in agreement with theory 关7,8兴. Currently much experimental effort is being put into reaching the quantum regime 关9,10兴. In this regime tunneling between coexisting classically stable periodic states should become important, for weak dissipation. It was first studied for a resonantly dri ...
QUANTUM THEORY
QUANTUM THEORY

feynman
feynman

... what happens if we do experiments in one hole open only, then the other hole open only, then both holes open simultaneously? again we have P1 and P2 but P12 is not P1 + P2 as it was for bullets we can replace the electrons with “buckyballs”, e.g. C60 which is approximately 60 times 22061 times heavi ...
Dimerized Phase and Transitions in a Spatially Anisotropic Square Lattice... Oleg A. Starykh and Leon Balents
Dimerized Phase and Transitions in a Spatially Anisotropic Square Lattice... Oleg A. Starykh and Leon Balents

... dimer as the intermediate phase between the Haldane and rung-singlet phases of the frustrated ladder. This feature was missed by [8,9] who described J?  2J point of the lattice ladder by (8) with g3  0. Our analysis shows that multicritical point where chains are coupled only by the marginal curr ...
Arrangement of Electrons in Atoms (Chapter 4) Notes
Arrangement of Electrons in Atoms (Chapter 4) Notes

Stabilizing the magnetic moment of single holmium atoms by symmetry
Stabilizing the magnetic moment of single holmium atoms by symmetry

... Both the f.c.c. and the hexagonal close-packed (h.c.p.) adsorption sites have a three-fold symmetry with a vertical mirror plane (and its rotations) perpendicular to the surface (see inset of Fig. 1c), that is, a C3v symmetry. Encouraged by a previous study12, we used rare earth atoms instead of tra ...
Contents - Center for Ultracold Atoms
Contents - Center for Ultracold Atoms

... The magnetization can be viewed as the sum of a small uniform sphere at the origin, plus a hollow sphere containing the remainder of the magnetization. It is easily shown that the field due to the hollow sphere vanishes. However, the uniform sphere give rise to a finite value of H(0) due to an equiv ...
PPT
PPT

... 1. The switch-on of U changes the energy dispersion of the left-half lattice. 2. Moving a high-energy particle to a low-energy state or vice versa is forbidden by the underlying quantum dynamics. 3. The blockade is dynamical. (unlike Mott insulator in equilibrium which is due to energy minimization. ...
Atomic Structure
Atomic Structure

... When electrons are in the lowest energy state,they are said to be in the ground state. When energy from a flame or other source is absorbed by the electrons, they are promoted to a higher energy state (excited state). When an electron in an excited state returns to a lower energy state, it emits a p ...
1 Random Hamiltonians
1 Random Hamiltonians

76, 023605 (2007).
76, 023605 (2007).

... array of phenomena in quantum condensed systems 关5兴. In particular, optical lattice systems may turn out to be the ideal tools for the analog simulation of various strongly correlated interacting lattice models 共e.g., Hubbard model 关2,3兴, Kitaev model 关6兴兲 studied in solid state physics. The great a ...
A Spectroscopic Determination of Scattering Lengths for Sodium
A Spectroscopic Determination of Scattering Lengths for Sodium

Local structure relaxation, quantum trap depression, and
Local structure relaxation, quantum trap depression, and

1.5. Angular momentum operators
1.5. Angular momentum operators

... The Zeeman effect can be demonstrated if a beam of H atoms is injected into a inhomogeneous magnetic field since the beam must split into 2l + 1 beams according to the values of m. This means 1, 3, 5, 7, etc. beams are expected depending on the initial quantum number l of the H-atom. Stern and Gerlac ...
The cesium frequency standard
The cesium frequency standard

... likely to occur. Achieving this in practice is a difficult task, plagued with many technical details, which can be found in [2, 6, 7]. The purpose of the B-magnet is to separate the atoms that made the transition from the rest. The principle of operation is the same as in the case of the A-magnet. T ...
Canonically conjugate pairs and phase operators
Canonically conjugate pairs and phase operators

Downloadable Full Text - DSpace@MIT
Downloadable Full Text - DSpace@MIT

... We numerically construct the supersymmetric and non-supersymmetric wave functions of an N ¼ 4 quiver quantum mechanics with two Abelian nodes and a single arrow. This model captures the dynamics of a pair of wrapped D-branes interacting via a single light string mode. A dimensionless parameter ν, wh ...
Atoms
Atoms

... If an electron drops from n = 3 to n = 2, the energy difference between the two orbits (and therefore the energy emitted) corresponds to that of red light. Hence the red line appears in the emission spectrum. The blue-green line results from an electron transition from n = 4 to n = 2, the blue line ...
Observation of Cold Collisions between Trapped Ions and Trapped
Observation of Cold Collisions between Trapped Ions and Trapped

...detail
...detail

... with respective reference applications). Multipoles: Electric dipole and its moment, derivation of field and potential due to a dipole, potential energy for a dipole placed in an external field, mutual potential energy of two dipoles, force and torque between tow dipoles, linear and planner quadrupo ...
“Measuring” the Density Matrix
“Measuring” the Density Matrix

... it has N 2 − 1 independent elements. (A spin 1/2 system can exist in two states, usually taken as states quantized parallel and anti-parallel to a z-axis, so that the density matrix is of dimension 2 × 2 and has 3 independent elements.) Assume now that we can find N 2 linearly independent N × N herm ...
Physics Today
Physics Today

... Figure 5. The ground-state configurations of various multielectron atoms, calculated using a Bohr-like model. For both the n = 1 and n = 2 shells, the electron locations (red dots) found from that simplistic model agree closely with the maximum charge densities obtained from standard quantum-theory ...
- Natural Sciences Publishing
- Natural Sciences Publishing

... science, the degree of entanglement in some physical systems is studied [20]. Also there are many studies that focused on the properties of entanglement [21]-[29] which neglect the damping of the atom. However, the entanglement induced by the atomic damping of a dispersive reservoir was discussed in ...
Local coordinate, wave vector, Fisher and Shannon information in
Local coordinate, wave vector, Fisher and Shannon information in

Lecture 20. Perturbation Theory: Examples
Lecture 20. Perturbation Theory: Examples

< 1 ... 84 85 86 87 88 89 90 91 92 ... 231 >

Tight binding

In solid-state physics, the tight-binding model (or TB model) is an approach to the calculation of electronic band structure using an approximate set of wave functions based upon superposition of wave functions for isolated atoms located at each atomic site. The method is closely related to the LCAO method used in chemistry. Tight-binding models are applied to a wide variety of solids. The model gives good qualitative results in many cases and can be combined with other models that give better results where the tight-binding model fails. Though the tight-binding model is a one-electron model, the model also provides a basis for more advanced calculations like the calculation of surface states and application to various kinds of many-body problem and quasiparticle calculations.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report