chapter 5-1---photons in semiconductors
... • Discontinuities in the energy-band diagram created by two heterojunctions can be useful for confining charge carriers to a desired region of space • Heterojunctions are useful for creating energy-band discontinuities that accelerate carriers at specific locations • Semiconductors of different band ...
... • Discontinuities in the energy-band diagram created by two heterojunctions can be useful for confining charge carriers to a desired region of space • Heterojunctions are useful for creating energy-band discontinuities that accelerate carriers at specific locations • Semiconductors of different band ...
Blinking suppression of single quantum dots in agarose gel
... suggest that electron transfer from the light state to the dark state might be blocked due to electrostatic surrounding of gel with inherent negatively charged fibers. © 2010 American Institute of Physics. 关doi:10.1063/1.3280386兴 Colloidal semiconductor quantum dots 共QDs兲 have attracted extensive at ...
... suggest that electron transfer from the light state to the dark state might be blocked due to electrostatic surrounding of gel with inherent negatively charged fibers. © 2010 American Institute of Physics. 关doi:10.1063/1.3280386兴 Colloidal semiconductor quantum dots 共QDs兲 have attracted extensive at ...
J. Phys. Chem. B 106, 8271, 2002
... and full quantum mechanical results is presented for the total and partial photodissociation cross sections, as well as for their corresponding survival amplitudes associated with the |00+〉, |40-〉, and |31-〉 initial states of H2O, and the |00+〉, |01-〉, and |10-〉 initial states of DOH. The comparison ...
... and full quantum mechanical results is presented for the total and partial photodissociation cross sections, as well as for their corresponding survival amplitudes associated with the |00+〉, |40-〉, and |31-〉 initial states of H2O, and the |00+〉, |01-〉, and |10-〉 initial states of DOH. The comparison ...
X-Ray Diffraction and Scanning Probe Microscopy
... The role of X-rays in diffraction experiments is based on the electromagnetic properties of this form of radiation. Electromagnetic radiation such as visible light and X-rays can sometimes behave as if the radiation were a beam of particles, while at other times it behaves as if it were a wave. If t ...
... The role of X-rays in diffraction experiments is based on the electromagnetic properties of this form of radiation. Electromagnetic radiation such as visible light and X-rays can sometimes behave as if the radiation were a beam of particles, while at other times it behaves as if it were a wave. If t ...
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... studying the thermal spectrum of light (black body radiation) that we began to understand just how strange it was. Although this represented the formal start of modern quantum mechanics, it is easier to start in 1877, with Hertz’s discovery of the photoelectric effect, which was explained in 1905 by ...
... studying the thermal spectrum of light (black body radiation) that we began to understand just how strange it was. Although this represented the formal start of modern quantum mechanics, it is easier to start in 1877, with Hertz’s discovery of the photoelectric effect, which was explained in 1905 by ...
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... both in the microwave domain by Haroche and coworkers (Goy et al., 1983; Haroche & Raimond, 1985; Kaluzny et al., 1983) and Walther and coworkers (Meschede et al., 1985), and in the optical domain by Kimble (Birnbaum et al., 2005; Boozer et al., 2007; Kimble, 1998; McKeever et al., 2004b; Rempe et a ...
... both in the microwave domain by Haroche and coworkers (Goy et al., 1983; Haroche & Raimond, 1985; Kaluzny et al., 1983) and Walther and coworkers (Meschede et al., 1985), and in the optical domain by Kimble (Birnbaum et al., 2005; Boozer et al., 2007; Kimble, 1998; McKeever et al., 2004b; Rempe et a ...
Orthogonal metals: The simplest non-Fermi liquids
... is carried by the orthogonal fermions. We construct the current operator, and demonstrate that the ferromagnetic and paramagnetic phases of the slave spins are thus both metals, if the orthogonal fermions are in a metallic phase. We then discuss the relationship between the slave-spin and the more u ...
... is carried by the orthogonal fermions. We construct the current operator, and demonstrate that the ferromagnetic and paramagnetic phases of the slave spins are thus both metals, if the orthogonal fermions are in a metallic phase. We then discuss the relationship between the slave-spin and the more u ...
Interaction between Atomic Ensembles and Optical
... 2010a,b; Schleier-Smith et al., 2010a,b), spin optomechanics (Brahms & Stamper-Kurn, 2010), preparation of nonclassical atomic states (Mekhov et al., 2007; Mekhov & Ritsch, 2009a,b; Simon et al., 2007a), or cavity-based quantum memories for light (Black et al., 2005b; Simon et al., 2007a,b; Tanji et ...
... 2010a,b; Schleier-Smith et al., 2010a,b), spin optomechanics (Brahms & Stamper-Kurn, 2010), preparation of nonclassical atomic states (Mekhov et al., 2007; Mekhov & Ritsch, 2009a,b; Simon et al., 2007a), or cavity-based quantum memories for light (Black et al., 2005b; Simon et al., 2007a,b; Tanji et ...
HOMOGENEOUS LINEWIDTH AND SPECTRAL
... 2-5. First three energy levels of En for hydrogenic atoms. ..............................................19 2-6. General energy diagram for insulators and semiconductors....................................21 2-7. a) The single particle picture of an electron and hole in a semiconductor. The electron ...
... 2-5. First three energy levels of En for hydrogenic atoms. ..............................................19 2-6. General energy diagram for insulators and semiconductors....................................21 2-7. a) The single particle picture of an electron and hole in a semiconductor. The electron ...
New Concepts in Inverse Quantum Chemistry - ETH E
... defined as an assembly of atomic nuclei fixed in space, is a direct consequence of this approximation. For a given assembly of atomic nuclei and electrons, the nonrelativistic electronic Hamiltonian is unequivocally defined. The methods mentioned above aim at an approximate solution of the electroni ...
... defined as an assembly of atomic nuclei fixed in space, is a direct consequence of this approximation. For a given assembly of atomic nuclei and electrons, the nonrelativistic electronic Hamiltonian is unequivocally defined. The methods mentioned above aim at an approximate solution of the electroni ...
Implications of the two nodal domains conjecture for ground state
... example of the nodal theorem is the simple harmonic oscillator. In two-dimensional (2D) and higher-dimensional systems, the nodal theorem is no longer valid: it is not necessarily true that the Mth excited state has M + 1 nodal domains.11 Courant and Hilbert10 were able to prove a weaker version of ...
... example of the nodal theorem is the simple harmonic oscillator. In two-dimensional (2D) and higher-dimensional systems, the nodal theorem is no longer valid: it is not necessarily true that the Mth excited state has M + 1 nodal domains.11 Courant and Hilbert10 were able to prove a weaker version of ...
CLUE - virtual laboratories
... many times do we hear about “natural remedies, without drugs or chemicals,” despite the fact that everything is composed of chemicals and the most toxic chemicals known are natural products.2 A growing body of research results on student understanding of chemistry indicates, pretty emphatically, tha ...
... many times do we hear about “natural remedies, without drugs or chemicals,” despite the fact that everything is composed of chemicals and the most toxic chemicals known are natural products.2 A growing body of research results on student understanding of chemistry indicates, pretty emphatically, tha ...
Exam Review
... 39. Which of the following statements about the elemental species 11 X and 12 Z is correct? a) They are isotopes of the same element. b) They are nonmetals. c) They are members of the same chemical family. d) They have the same number of neutrons per atom. 40. An element X has a mass number of 32 an ...
... 39. Which of the following statements about the elemental species 11 X and 12 Z is correct? a) They are isotopes of the same element. b) They are nonmetals. c) They are members of the same chemical family. d) They have the same number of neutrons per atom. 40. An element X has a mass number of 32 an ...
Quantum Chemistry for Spectroscopy – A Tale of Three Spins (S = 0
... Three special topics in the field of molecular spectrocopy are investigated using a variety of computational techniques. First, large-amplitude vibrational motions on ground-state singlet (S0 ) potential energy surfaces are analyzed for both the acetylene/vinylidene and the HCN/HNC isomerization sys ...
... Three special topics in the field of molecular spectrocopy are investigated using a variety of computational techniques. First, large-amplitude vibrational motions on ground-state singlet (S0 ) potential energy surfaces are analyzed for both the acetylene/vinylidene and the HCN/HNC isomerization sys ...
Quixotic Order and Broken Symmetry in the Quantum Hall Effect and
... relevant to aluminium arsenide quantum wells, exhibits nematic ordering that has observable consequences for transport in both dirty and clean systems; the second, applicable to bilayer graphene, hosts doubly-charged topological excitations that are an intriguing example of charge binding in a purel ...
... relevant to aluminium arsenide quantum wells, exhibits nematic ordering that has observable consequences for transport in both dirty and clean systems; the second, applicable to bilayer graphene, hosts doubly-charged topological excitations that are an intriguing example of charge binding in a purel ...
Quantum Computation with Nuclear Spins in Quantum Dots
... A quantum dot is a small region of a semiconductor where the electron’s motion is confined in all three spatial directions. The localized electron wave function and the resulting discrete energy spectrum are the defining characteristics of quantum dots. Depending on the fabrication technique, the mo ...
... A quantum dot is a small region of a semiconductor where the electron’s motion is confined in all three spatial directions. The localized electron wave function and the resulting discrete energy spectrum are the defining characteristics of quantum dots. Depending on the fabrication technique, the mo ...
A controlled quantum system of individual neutral atoms
... manipulating its internal degrees of freedom. More specifically, we couple the ground state hyperfine levels using microwave radiation. We found that the ground states exhibit long coherence times and that the coherence even persists when transporting the atom. These results open the route to using ...
... manipulating its internal degrees of freedom. More specifically, we couple the ground state hyperfine levels using microwave radiation. We found that the ground states exhibit long coherence times and that the coherence even persists when transporting the atom. These results open the route to using ...
Module 1 Predictor Questions
... measurement, and that the relationship between the base unit and the unit with the prefix is always the same regardless of the base unit. The base unit is represented by x in the table. Pay special attention to the unit factors provided as they are what will be used in converting one unit to another ...
... measurement, and that the relationship between the base unit and the unit with the prefix is always the same regardless of the base unit. The base unit is represented by x in the table. Pay special attention to the unit factors provided as they are what will be used in converting one unit to another ...
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.