• 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
Modern Physics 342
Modern Physics 342

... During the variables separation of wave functions in Schrodinger equation, angular momentum quantum number l was produced. The length of the angular momentum vector L is given by ...
neutrino_trans1
neutrino_trans1

... enough to resolve the oscillations, this guarantees that the wavepackets of the different i still overlap (barely). On the other hand, if the detector energy resolution is poor, and the oscillations can’t be resolved in the energy spectrum, the quantum description of this is that the i have “decoh ...
Quantum critical phenomena and stability of atomic and molecular
Quantum critical phenomena and stability of atomic and molecular

Electronic Structure of Atoms Chapter 6
Electronic Structure of Atoms Chapter 6

... Louis de Broglie (1892–1987), who was working on his Ph.D. thesis in physics at the Sorbonne in Paris, bravely extended this idea. If radiant energy could, under appropriate conditions, behave as though it were a stream of particles (photons), could matter, under appropriate conditions, possibly sho ...
Peeking and poking at atoms with laser light
Peeking and poking at atoms with laser light

... characterisation from people like Fraunhofer, Kirchoff, Bunsen, Balmer, and Zeeman followed, but it was not until 1913, with the introduction of the Rutherford-Bohr atomic model, that a cornerstone was laid for what would become a quantum mechanical description of the atom. ...
Document
Document

... So we need to make approximations. The outer electrons are screened by the inner electrons so the effective charge they feel is less than Ze which we can write as Zeffe. If one electron is well outside of the other Z−1 electrons it feels a charge of just 1e (i.e. Zeff = 1). This screening is basical ...
Quantum phase transitions in atomic gases and
Quantum phase transitions in atomic gases and

... If both processes are permitted, they exactly cancel each other. The top processes is blocked when , m are nearest neighbors ...
Radioactive isotopes in solid state physics
Radioactive isotopes in solid state physics

PHY583 - Note 1e - Free Electron Theory of Metal
PHY583 - Note 1e - Free Electron Theory of Metal

... This discrepancy implies that we are using the wrong value for L & that the scattering sites for electrons are not adjacent ion cores but more widely separated scattering centres. We can account for the unexpectedly long electron mean free path by taking the wave nature of the electron into account. ...
Snímek 1
Snímek 1

... 4) Shell model explains spin of nuclei. Even-even nucleus  protons and neutrons are paired. Spin and orbital angular momenta for pair are zeroed. Either proton or neutron is left over in odd nuclei. Half-integral spin of this nucleon is summed with integral angular momentum of rest of nucleus  hal ...
Bose-Einstein Condensation in a gas
Bose-Einstein Condensation in a gas

che-20028 QC lecture 3 - Rob Jackson`s Website
che-20028 QC lecture 3 - Rob Jackson`s Website

... What does H look like? • We can write H as: H = T + V, where ‘T’ is the kinetic energy operator, and ‘V’ is the potential energy operator. • The potential energy operator will depend on the system, but the kinetic energy operator has a common form: CHE-20028 QC lecture 3 ...


... period can be read out with many fewer operations than a classical computer requires2. (In a classical calculation we would have to run the computation many times, once for each input value, to slowly, step by step, build up global information about the function.) Encoding this information in materi ...
Spectrum of quasistable states in a strong infrared
Spectrum of quasistable states in a strong infrared

... peak to sit a little left, but it is at E = −0.125 a.u., which is the first excited energy level of H atom. In this case, electrons with initial energy close to E = −0.125 a.u. will be stuck there (the 2p state) because the IR field intensity is too weak to trigger multiphoton transition at that bin ...
Chapter 6
Chapter 6

... Each photon can have a spin aligned (+ or -) with respect to the z-axis. Because of angular momentum conservation, if photon 1 has +, then photon #2 has “–” and vice versa. Before we make any measurements, both photons have some probability of being either + or -. Now Photon #1 enters our detector a ...
Chapter 10: Multi-‐Electron Atoms – Optical Excitations
Chapter 10: Multi-‐Electron Atoms – Optical Excitations

... consider atoms with two optical electrons. These two electrons can be in either a triplet or a singlet spin state. Since the average distance between two electrons in the triplet state is larger than the average distance between two electrons in the singlet state, the repulsion between these electro ...
14-Research quantum mechanical methods of bioobjects
14-Research quantum mechanical methods of bioobjects

... where C is an integration constant that we may choose to be 0. Therefore: ...
Interatomic Methods for the Dispersion Energy Derived from the
Interatomic Methods for the Dispersion Energy Derived from the

Wavelike properties of particles
Wavelike properties of particles

... are the entities available to us for such measurements. The relations p = h/λ and E = hν are applicable to both matter and to radiation because of the intrinsic nature of wave-particle duality. When combining these relations with the universal waves properties, we obtain the Heisenberg uncertainty r ...
Sample pages 2 PDF
Sample pages 2 PDF

... In the experiments presented in this thesis, Rydberg states are excited by a two-photon transition in rubidium, using a laser at 780 nm to excite from the 5S1/2 ground-state to the 5P3/2 excited state, and a second laser at 480 nm to couple from 5P3/2 to either nS1/2 or n D5/2,3/2 Rydberg states. Th ...
The Rydberg series for the doubly excited states of the helium atom
The Rydberg series for the doubly excited states of the helium atom

Chapter 41 Wave Mechanics 41.1 De Broglie Waves
Chapter 41 Wave Mechanics 41.1 De Broglie Waves

... 41.6 Heisenberg Uncertainty Principle (II) From the de Broglie matter wave relation, we see that a spread in wavelengths, ∆λ, means that the wave packet involves a spread in momentum, ∆p. According to the Heisenberg uncertainty principle, the uncertainties in position and in momentum are related by ...
6 Yang-Baxter equation - ENS-phys
6 Yang-Baxter equation - ENS-phys

22.101  Applied Nuclear Physics (Fall 2004) Lecture 4 (9/20/04)
22.101 Applied Nuclear Physics (Fall 2004) Lecture 4 (9/20/04)

Quantum Mechanics Unit Review AP Physics
Quantum Mechanics Unit Review AP Physics

... a difference in energy for orbitals with different values of angular momentum (l), though orbitals with different values of the magnetic quantum number are degenerate. So there are three different energy value possible in the 3rd energy level in a single-electron atom. There are 4 different orbitals ...
< 1 ... 109 110 111 112 113 114 115 116 117 ... 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