Cavity Induced Interfacing of Atoms and Light
... the probability of spontaneous emission placing a photon into the cavity is given by β = f /( f + 1). If the mode volume of the cavity is sufficiently small, the emitter and cavity couple so strongly that β ≈ 1, i.e. emissions into the cavity outweigh spontaneous emissions into free space. A determi ...
... the probability of spontaneous emission placing a photon into the cavity is given by β = f /( f + 1). If the mode volume of the cavity is sufficiently small, the emitter and cavity couple so strongly that β ≈ 1, i.e. emissions into the cavity outweigh spontaneous emissions into free space. A determi ...
Chapter 6: Thermochemistry
... A) the energy stored within the structural units of chemical substances. B) the energy associated with the random motion of atoms and molecules. C) solar energy, i.e. energy that comes from the sun. D) energy available by virtue of an object's position. Ans: C Category: Easy Section: 6.1 2. Thermal ...
... A) the energy stored within the structural units of chemical substances. B) the energy associated with the random motion of atoms and molecules. C) solar energy, i.e. energy that comes from the sun. D) energy available by virtue of an object's position. Ans: C Category: Easy Section: 6.1 2. Thermal ...
Full Text - University of Arizona
... atoms with degenerate ground states and light fields with spatially varying polarization. The ENS group in particular proposed an elegant 1-dimensional model system, in which cooling results from optical pumping between a set of spatially varying light shift potentials that depend on the atomic grou ...
... atoms with degenerate ground states and light fields with spatially varying polarization. The ENS group in particular proposed an elegant 1-dimensional model system, in which cooling results from optical pumping between a set of spatially varying light shift potentials that depend on the atomic grou ...
Overview Density functional calculations of NMR chemical shifts and
... on the more traditional ab initio techniques has seen a tremendous development as well, and both comprehensive and technical [4] as well as more general reviews [5±12] are available. In the present overview, we will exclusively concentrate on DFT calculations of the NMR shielding (chemical shift) an ...
... on the more traditional ab initio techniques has seen a tremendous development as well, and both comprehensive and technical [4] as well as more general reviews [5±12] are available. In the present overview, we will exclusively concentrate on DFT calculations of the NMR shielding (chemical shift) an ...
Chemistry Exemplar Problems
... in new situations. At number of places elaboration of answers may be required. The problems included in this book were developed in workshop mode organised by the DESM involving practicing teachers, subject experts from universities and institutes of higher learning, and the members of the Chemistry ...
... in new situations. At number of places elaboration of answers may be required. The problems included in this book were developed in workshop mode organised by the DESM involving practicing teachers, subject experts from universities and institutes of higher learning, and the members of the Chemistry ...
W. Ketterle
... ultimate control over the motion and position of atoms limited only by Heisenberg’s uncertainty relation; (2) to generate a coherent sample of atoms all occupying the same quantum state (this was subsequently used to realize an atom laser, a device which generates coherent matter waves); and (3) to ...
... ultimate control over the motion and position of atoms limited only by Heisenberg’s uncertainty relation; (2) to generate a coherent sample of atoms all occupying the same quantum state (this was subsequently used to realize an atom laser, a device which generates coherent matter waves); and (3) to ...
Martin Raith - Publikationsserver der Universität Regensburg
... However, a major issue of these systems, maybe even more than for the others, is the lack of scalability. Superconducting qubits [47, 48] have coherence times up to a few microseconds [49, 50]. Fabricated on a chip on “macroscopic” scale (up to 100 µm), they could as well take advantage of the achie ...
... However, a major issue of these systems, maybe even more than for the others, is the lack of scalability. Superconducting qubits [47, 48] have coherence times up to a few microseconds [49, 50]. Fabricated on a chip on “macroscopic” scale (up to 100 µm), they could as well take advantage of the achie ...
Fundamentals of Semiconductors
... The emphasis of this course at Berkeley has always been on simple physical arguments, sometimes at the expense of rigor and elegance in mathematics. Unfortunately, to keep the promise of using only undergraduate physics and mathematics course materials requires compromise in handling special graduat ...
... The emphasis of this course at Berkeley has always been on simple physical arguments, sometimes at the expense of rigor and elegance in mathematics. Unfortunately, to keep the promise of using only undergraduate physics and mathematics course materials requires compromise in handling special graduat ...
Answers - logo Pre-U Chemistry Textbook
... The two things that affect the size of hydration energies are ionic radius and the charge on the ion. The higher the charge on the ion the more exothermic ∆hydrH. The value for Mg2+ is nearly five times as large as Na+. Al3+ is nearly two and a half times as big as Mg2+. By comparing the values for ...
... The two things that affect the size of hydration energies are ionic radius and the charge on the ion. The higher the charge on the ion the more exothermic ∆hydrH. The value for Mg2+ is nearly five times as large as Na+. Al3+ is nearly two and a half times as big as Mg2+. By comparing the values for ...
Localized - Current research interest: photon position
... In standard quantum mechanics a measurement is associated with an operator and collapse to one of its eigenvectors. For the position observable this requires a position operator and collapse to a localized state. The generalized theory of observables only requires a partition of the identity operato ...
... In standard quantum mechanics a measurement is associated with an operator and collapse to one of its eigenvectors. For the position observable this requires a position operator and collapse to a localized state. The generalized theory of observables only requires a partition of the identity operato ...
Main_Article_revised_version
... chemical scavengers were employed. For holes, the well known electron scavenger AgNO3 was used.32 Similar to previous studies of anatase,33,34 the large rise in absorbance at shorter wavelengths was attributed to the presence of photo-generated holes. The change in spectral signature for both anatas ...
... chemical scavengers were employed. For holes, the well known electron scavenger AgNO3 was used.32 Similar to previous studies of anatase,33,34 the large rise in absorbance at shorter wavelengths was attributed to the presence of photo-generated holes. The change in spectral signature for both anatas ...
Recent Advances in Development and Applications of the Mixed
... process is high, and the number of internal states involved (rotational, vibrational) is large. Examples include photochemistry,24 collisioninduced dissociation,25,26 exothermic chemical reactions,27 and hyperthermal phenomena.28 However, for the low-energy collisions, or when just a few low-lying q ...
... process is high, and the number of internal states involved (rotational, vibrational) is large. Examples include photochemistry,24 collisioninduced dissociation,25,26 exothermic chemical reactions,27 and hyperthermal phenomena.28 However, for the low-energy collisions, or when just a few low-lying q ...
Metal-to-ligand and ligand-to-metal charge transfer in thin films of
... 2.2 Ligand field multiplet calculations In order to extract quantitative information from L2,3-edges absorption spectra, experimental XAS spectra were modelled using the so-called ligand field multiplet (LFM) theory developed by Thole21 in the framework established by Cowan22 and Butler.23 This approa ...
... 2.2 Ligand field multiplet calculations In order to extract quantitative information from L2,3-edges absorption spectra, experimental XAS spectra were modelled using the so-called ligand field multiplet (LFM) theory developed by Thole21 in the framework established by Cowan22 and Butler.23 This approa ...
Visible Light Generation of Iodine Atoms and I
... whose self-exchange rate constants are unusually small due to large internal reorganization energy changes imparted by spin and coordination number changes, respectively.26,27 The second explanation is that the TiO2(e-)s are good one electron reductants, perhaps best thought of as Ti(III) trap state ...
... whose self-exchange rate constants are unusually small due to large internal reorganization energy changes imparted by spin and coordination number changes, respectively.26,27 The second explanation is that the TiO2(e-)s are good one electron reductants, perhaps best thought of as Ti(III) trap state ...
Far-infrared-driven electron-hole correlations in a quantum dot with an internal... Roger Sakhel, Lars Jo¨nsson, and John W. Wilkins
... would be stacked self-assembled InAs pyramids embedded in GaAs. In addition, since the simulations use a simplified model, the particular dot dimensions or pulse parameters are not essential. Our goal is to describe different correlationinduced effects that can be optically excited and probed and th ...
... would be stacked self-assembled InAs pyramids embedded in GaAs. In addition, since the simulations use a simplified model, the particular dot dimensions or pulse parameters are not essential. Our goal is to describe different correlationinduced effects that can be optically excited and probed and th ...
PC_Chemistry_Macomb_April08
... For each element, the arrangement of electrons surrounding the nucleus is unique. These electrons are found in different energy levels and can only move from a lower energy level (closer to nucleus) to a higher energy level (farther from nucleus) by absorbing energy in discrete packets. The energy c ...
... For each element, the arrangement of electrons surrounding the nucleus is unique. These electrons are found in different energy levels and can only move from a lower energy level (closer to nucleus) to a higher energy level (farther from nucleus) by absorbing energy in discrete packets. The energy c ...
Bulk and Structure Inversion Asymmetry in Semiconductor Quantum
... anisotropy of the band spin splitting, which is caused by the interference of BIA and SIA. Furthermore, basic rules for the design of QW structures with a defined SIA/BIA-ratio should be obtained. These goals can be achieved applying a newly developed method, based on the analysis of the anisotropy ...
... anisotropy of the band spin splitting, which is caused by the interference of BIA and SIA. Furthermore, basic rules for the design of QW structures with a defined SIA/BIA-ratio should be obtained. These goals can be achieved applying a newly developed method, based on the analysis of the anisotropy ...
Electron configuration
In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals. For example, the electron configuration of the neon atom is 1s2 2s2 2p6.Electronic configurations describe electrons as each moving independently in an orbital, in an average field created by all other orbitals. Mathematically, configurations are described by Slater determinants or configuration state functions.According to the laws of quantum mechanics, for systems with only one electron, an energy is associated with each electron configuration and, upon certain conditions, electrons are able to move from one configuration to another by the emission or absorption of a quantum of energy, in the form of a photon.Knowledge of the electron configuration of different atoms is useful in understanding the structure of the periodic table of elements. The concept is also useful for describing the chemical bonds that hold atoms together. In bulk materials, this same idea helps explain the peculiar properties of lasers and semiconductors.