J. Foot - Atomic Physics
... interaction of radiation with atoms marks the transition between the earlier chapters on structure and the second half of the book which covers laser spectroscopy, laser cooling, Bose–Einstein condensation of dilute atomic vapours, matter-wave interferometry and ion trapping. The exciting new develo ...
... interaction of radiation with atoms marks the transition between the earlier chapters on structure and the second half of the book which covers laser spectroscopy, laser cooling, Bose–Einstein condensation of dilute atomic vapours, matter-wave interferometry and ion trapping. The exciting new develo ...
Trento 2001 - Università degli Studi dell`Insubria
... Minimum known in advance (0) Can be used for excited states with same symmetry too © Dario Bressanini ...
... Minimum known in advance (0) Can be used for excited states with same symmetry too © Dario Bressanini ...
I. Results from Prior NSF Support
... relativistic fields add velocity dependent terms to the atomic Hamiltonian, resulting in a difference between the canonical and kinematic momenta. Questions remain about how to incorporate such relativistic terms into the standard non-relativistic formulation of quantum mechanics [WAR97]. These phas ...
... relativistic fields add velocity dependent terms to the atomic Hamiltonian, resulting in a difference between the canonical and kinematic momenta. Questions remain about how to incorporate such relativistic terms into the standard non-relativistic formulation of quantum mechanics [WAR97]. These phas ...
Ultracold atoms in optical lattices generated by quantized light fields
... the basis of our further considerations. It is, however, still much too complex for a general solution and we will have to make further simplifying assumptions. Hence at this point we will restrict ourselves to 1D motion along the cavity axis. In an experimental setup this could be actually realized ...
... the basis of our further considerations. It is, however, still much too complex for a general solution and we will have to make further simplifying assumptions. Hence at this point we will restrict ourselves to 1D motion along the cavity axis. In an experimental setup this could be actually realized ...
Theoretical Study of Carrier Capture into Semiconductor Quantum
... part [3]. An electron in the upper energy level is stimulated to fall to the lower one and to emit a photon in a much shorter time than its mean spontaneous decay time. The junction area where this behavior happens is called the inversion region. The population inversion must be retained during the ...
... part [3]. An electron in the upper energy level is stimulated to fall to the lower one and to emit a photon in a much shorter time than its mean spontaneous decay time. The junction area where this behavior happens is called the inversion region. The population inversion must be retained during the ...
Introduction to Quantum Information Science
... Unfortunately, this is not a major increase in speed, nor is it a terribly interesting problem from a computer scientist stand point. However, it is a proof of concept that quantum computers can be more powerful than classical ones. Over the next decade Deutsch and others improved and discovered a f ...
... Unfortunately, this is not a major increase in speed, nor is it a terribly interesting problem from a computer scientist stand point. However, it is a proof of concept that quantum computers can be more powerful than classical ones. Over the next decade Deutsch and others improved and discovered a f ...
TOPICS IN QUANTUM NANOSTRUCTURE PHYSICS: SPIN-ORBIT EFFECTS AND FAR-INFRARED RESPONSE TEMES DE F´
... the three spatial components of the density, which in addition is a simpler both conceptually and practically quantity to deal with. On the other hand, the exchange-correlation part of the electron-electron interaction, neglected or only partially taken into account in the above-mentioned approaches ...
... the three spatial components of the density, which in addition is a simpler both conceptually and practically quantity to deal with. On the other hand, the exchange-correlation part of the electron-electron interaction, neglected or only partially taken into account in the above-mentioned approaches ...
Chapter 7 Fluorescence Imaging of Quantum Gases
... the proper functioning of the optical molasses. First, one has to avoid any vector light shift in the pinning lattice, which would disturb the molasses just like a magnetic field. This demands a detuning of the lattice light of at least a few 10 GHz; but even at a wavelength of 1064 nm, it is import ...
... the proper functioning of the optical molasses. First, one has to avoid any vector light shift in the pinning lattice, which would disturb the molasses just like a magnetic field. This demands a detuning of the lattice light of at least a few 10 GHz; but even at a wavelength of 1064 nm, it is import ...
CfE Advanced Higher Chemistry
... which it can be described. At the highest energy, the waves are so tightly packed that they are less than an atom's width apart, whilst at the low energy end the waves are a football pitch or greater apart. In the wave model description of electromagnetic radiation, the waves can be specified by the ...
... which it can be described. At the highest energy, the waves are so tightly packed that they are less than an atom's width apart, whilst at the low energy end the waves are a football pitch or greater apart. In the wave model description of electromagnetic radiation, the waves can be specified by the ...
CfE Higher Chemistry Unit 1: Chemical Changes and Structure
... All substances are made up of particles called atoms, ions or molecules, and these particles are constantly moving. The degree of movement depends upon the state of the substance. This is known as the 'kinetic model' of matter. In any sample of solution, liquid or gas there is a range of kinetic ene ...
... All substances are made up of particles called atoms, ions or molecules, and these particles are constantly moving. The degree of movement depends upon the state of the substance. This is known as the 'kinetic model' of matter. In any sample of solution, liquid or gas there is a range of kinetic ene ...
Get PDF - OSA Publishing
... go beyond the limit of classical physics. Entanglement as a measurable quantity is a complicated subject, in particular when the systems have multiple components. Here we choose to study entanglement and its possible avenues of quantification in an open quantum system. This system, the canonical mod ...
... go beyond the limit of classical physics. Entanglement as a measurable quantity is a complicated subject, in particular when the systems have multiple components. Here we choose to study entanglement and its possible avenues of quantification in an open quantum system. This system, the canonical mod ...
Review on Nucleon Spin Structure
... 4. Hadron and Quark-gluon matter. S.Olson will talk about the new hadron states, Y.G. Ma will talk about the heavy ion physics, I suppose I can leave the 3 and 4 subjects to them. ...
... 4. Hadron and Quark-gluon matter. S.Olson will talk about the new hadron states, Y.G. Ma will talk about the heavy ion physics, I suppose I can leave the 3 and 4 subjects to them. ...
AVOGADRO EXAMS 1991 - 2002 PRACTICE BOOKLET
... 16. An element occurring in nature as a metal(such as copper or gold) is likely to (a) react readily with oxygen to from a protective oxide coating (b) be at the high end of the activity series of metals (c) cause strong acids to release hydrogen gas (d) undergo oxidation only with difficulty (e) lo ...
... 16. An element occurring in nature as a metal(such as copper or gold) is likely to (a) react readily with oxygen to from a protective oxide coating (b) be at the high end of the activity series of metals (c) cause strong acids to release hydrogen gas (d) undergo oxidation only with difficulty (e) lo ...
Quantum mechanical force field for water with explicit electronic
... dipoles, representing the total electric field of the system, are obtained.21 A commonly used method to assign atomic polarizabilities is the dipole interaction model (DIM) popularized by Applequist et al.22 and extended by Thole23 to incorporate short-range damping functions. Remarkably, the values ...
... dipoles, representing the total electric field of the system, are obtained.21 A commonly used method to assign atomic polarizabilities is the dipole interaction model (DIM) popularized by Applequist et al.22 and extended by Thole23 to incorporate short-range damping functions. Remarkably, the values ...
Bohr model
In atomic physics, the Rutherford–Bohr model or Bohr model, introduced by Niels Bohr in 1913, depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus—similar in structure to the solar system, but with attraction provided by electrostatic forces rather than gravity. After the cubic model (1902), the plum-pudding model (1904), the Saturnian model (1904), and the Rutherford model (1911) came the Rutherford–Bohr model or just Bohr model for short (1913). The improvement to the Rutherford model is mostly a quantum physical interpretation of it. The Bohr model has been superseded, but the quantum theory remains sound.The model's key success lay in explaining the Rydberg formula for the spectral emission lines of atomic hydrogen. While the Rydberg formula had been known experimentally, it did not gain a theoretical underpinning until the Bohr model was introduced. Not only did the Bohr model explain the reason for the structure of the Rydberg formula, it also provided a justification for its empirical results in terms of fundamental physical constants.The Bohr model is a relatively primitive model of the hydrogen atom, compared to the valence shell atom. As a theory, it can be derived as a first-order approximation of the hydrogen atom using the broader and much more accurate quantum mechanics and thus may be considered to be an obsolete scientific theory. However, because of its simplicity, and its correct results for selected systems (see below for application), the Bohr model is still commonly taught to introduce students to quantum mechanics or energy level diagrams before moving on to the more accurate, but more complex, valence shell atom. A related model was originally proposed by Arthur Erich Haas in 1910, but was rejected. The quantum theory of the period between Planck's discovery of the quantum (1900) and the advent of a full-blown quantum mechanics (1925) is often referred to as the old quantum theory.