20040929114512301
... – Decoherence is an interesting problem: heating rates of seconds gives loads of time for gates. – Quantum memories are harder to realize: few qubit applications? ...
... – Decoherence is an interesting problem: heating rates of seconds gives loads of time for gates. – Quantum memories are harder to realize: few qubit applications? ...
Document
... units. It has also being shown that electron trapping by solitons and the formation of electron-soliton dynamic bound states, called “solectrons”, is a universal phenomenon with strong similarities (and expected differences) between the classical and quantum approaches9. Further there is the enhance ...
... units. It has also being shown that electron trapping by solitons and the formation of electron-soliton dynamic bound states, called “solectrons”, is a universal phenomenon with strong similarities (and expected differences) between the classical and quantum approaches9. Further there is the enhance ...
THERMOELECTRIC PHENOMENA
... velocities than electrons on the cold end. Therefore, the electrons on the hot end diffuse to the cold end until the developing electric field prevents further diffusion. The diffusion of electrons gives the conducting rod an increased negative electron concentration at the cold end, leaving some un ...
... velocities than electrons on the cold end. Therefore, the electrons on the hot end diffuse to the cold end until the developing electric field prevents further diffusion. The diffusion of electrons gives the conducting rod an increased negative electron concentration at the cold end, leaving some un ...
Introduction to SOLID STATE PHYSICS
... to each other in the periodic table (between nonmetals and non-metals). The covalent bonding is formed when the atoms share the outer shell electrons (i.e., s and p electrons) rather than by electron transfer. Noble gas electron configuration can be attained. ...
... to each other in the periodic table (between nonmetals and non-metals). The covalent bonding is formed when the atoms share the outer shell electrons (i.e., s and p electrons) rather than by electron transfer. Noble gas electron configuration can be attained. ...
Chem700 MO
... • any approximate wavefunction will yield an energy higher than the ground state energy • parameters in an approximate wavefunction can be varied to minimize the Evar • this yields a better estimate of the ground state energy and a better approximation to the wavefunction ...
... • any approximate wavefunction will yield an energy higher than the ground state energy • parameters in an approximate wavefunction can be varied to minimize the Evar • this yields a better estimate of the ground state energy and a better approximation to the wavefunction ...
Kinetics of decay of metastable gas phase of polarized atomic
... rate of depolarization of atomic hydrogen at low temperature in a strong magnetic field. This approach, however, i s not appropriate for the considered problem at low temperatures, by virtue of the quantum character of the motion of the nuclei and of the strong inelasticity of the process, although ...
... rate of depolarization of atomic hydrogen at low temperature in a strong magnetic field. This approach, however, i s not appropriate for the considered problem at low temperatures, by virtue of the quantum character of the motion of the nuclei and of the strong inelasticity of the process, although ...
Motors and Generators by Ian Wilkinson
... One of Michael Faraday’s numerous discoveries was electromagnetic induction, which is the generation of an electric current by a changing magnetic field Faraday showed that when he moved a magnet near a wire coil, a current temporarily flowed within the coil, which was measured by deflections on a g ...
... One of Michael Faraday’s numerous discoveries was electromagnetic induction, which is the generation of an electric current by a changing magnetic field Faraday showed that when he moved a magnet near a wire coil, a current temporarily flowed within the coil, which was measured by deflections on a g ...
Hybrid superconductor junctions with diluted PtNi ferromagnetic interlayer Taras Golod
... Another consequence of the phase coherence is appearance of the DC and AC Josephson effects in superconducting weak links [3, 4]. The main idea of the DC effect is that the some amount of supercurrent, Is , can flow through non superconducting barrier between two superconductors without resistance. ...
... Another consequence of the phase coherence is appearance of the DC and AC Josephson effects in superconducting weak links [3, 4]. The main idea of the DC effect is that the some amount of supercurrent, Is , can flow through non superconducting barrier between two superconductors without resistance. ...
Time-Dependent Electron Interactions in Double
... the e-e interaction is strongest when both wave packets are simultaneously near the nucleus. In this case, there is a large energy exchange and the autoionized electron travels quickly to the mask. These two trends also are visible in the energy distribution of the Baþ states after autoionization; t ...
... the e-e interaction is strongest when both wave packets are simultaneously near the nucleus. In this case, there is a large energy exchange and the autoionized electron travels quickly to the mask. These two trends also are visible in the energy distribution of the Baþ states after autoionization; t ...
Quantum Hall effect
... This means that to pass from one IQHE state to another requires a quantum phase transition: this corresponds to the point at which the edge state delocalizes and “percolates” through the bulk ...
... This means that to pass from one IQHE state to another requires a quantum phase transition: this corresponds to the point at which the edge state delocalizes and “percolates” through the bulk ...
Use of Rotating Coordinates in Magnetic Resonance Problems
... However, as the coordinate system and hence M are rotating with frequency co relative to the laboratory system, the resulting rotating magnetic moment will induce a signal in a suitably placed coil. Actually the preceding case rarely applies since the local magnetic 6elds from neighboring molecules ...
... However, as the coordinate system and hence M are rotating with frequency co relative to the laboratory system, the resulting rotating magnetic moment will induce a signal in a suitably placed coil. Actually the preceding case rarely applies since the local magnetic 6elds from neighboring molecules ...
Reverse bias condition
... associated with small leakage currents are accelerated by the field to high enough energies so that they ionise silicon atoms when they collide with them. A new hole-electron pair are created which accelerate in opposite directions causing further collisions and ionisation and avalanche breakdown Ze ...
... associated with small leakage currents are accelerated by the field to high enough energies so that they ionise silicon atoms when they collide with them. A new hole-electron pair are created which accelerate in opposite directions causing further collisions and ionisation and avalanche breakdown Ze ...
Name Date Class Lesson Outline LESSON 2 Development of a
... When the hot water (380°C or higher) mixes with the cold seawater (2°C), it cools quickly. The minerals in the water settle and gradually form chimney-shaped vent openings. Because the chimneys spew hot, mineral-rich water, they can look like smoke stacks. Another type of hydrothermal vent occurs wh ...
... When the hot water (380°C or higher) mixes with the cold seawater (2°C), it cools quickly. The minerals in the water settle and gradually form chimney-shaped vent openings. Because the chimneys spew hot, mineral-rich water, they can look like smoke stacks. Another type of hydrothermal vent occurs wh ...
Importance of electronic correlations for pnictide superconductor LaFeAsO
... Since the discovery of high-temperature superconductivity in iron-based compounds1 a lot of research has been dedicated to this fascinating class of materials. On the theoretical side, calculations within density-functional theory (DFT), often performed within the local-density approximation (LDA), ...
... Since the discovery of high-temperature superconductivity in iron-based compounds1 a lot of research has been dedicated to this fascinating class of materials. On the theoretical side, calculations within density-functional theory (DFT), often performed within the local-density approximation (LDA), ...
A lead-free high-TC ferroelectric BaTi2O5 : A first
... with the values determined in the measurement of polarization hysteresis. The cause for polarization along the b crystal axis is easily visualized by inspecting the charge density. In Fig. 2 the difference of the electronic valence charge densities r (C2)2 r (C2/m) is shown. Around Ti atoms excess e ...
... with the values determined in the measurement of polarization hysteresis. The cause for polarization along the b crystal axis is easily visualized by inspecting the charge density. In Fig. 2 the difference of the electronic valence charge densities r (C2)2 r (C2/m) is shown. Around Ti atoms excess e ...
New Spin-Orbit-Induced Universality Class in the Integer Quantum Hall Regime
... works. Lee [7] and Hanna et al. [8] studied a Hamiltonian with a spin-dependent term Hr S, in which Hr is a random field that couples to the electron spin S. Their conclusion is that, at least for random field which varies smoothly in space, the quantum-Hall transition splits, but the critical ...
... works. Lee [7] and Hanna et al. [8] studied a Hamiltonian with a spin-dependent term Hr S, in which Hr is a random field that couples to the electron spin S. Their conclusion is that, at least for random field which varies smoothly in space, the quantum-Hall transition splits, but the critical ...
Excitation Spectra of Circular, Few
... semiconductors but also in metal grains and molecules (2). Quantum dot devices usually contain some disorder caused, for example, by impurities (2). Clean quantum dots, in the form of regular disks, have only recently been fabricated in a semiconductor heterostructure (3, 4). The circular symmetry o ...
... semiconductors but also in metal grains and molecules (2). Quantum dot devices usually contain some disorder caused, for example, by impurities (2). Clean quantum dots, in the form of regular disks, have only recently been fabricated in a semiconductor heterostructure (3, 4). The circular symmetry o ...
Ferromagnetism
Not to be confused with Ferrimagnetism; for an overview see Magnetism.Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets. In physics, several different types of magnetism are distinguished. Ferromagnetism (including ferrimagnetism) is the strongest type: it is the only one that typically creates forces strong enough to be felt, and is responsible for the common phenomena of magnetism in magnets encountered in everyday life. Substances respond weakly to magnetic fields with three other types of magnetism, paramagnetism, diamagnetism, and antiferromagnetism, but the forces are usually so weak that they can only be detected by sensitive instruments in a laboratory. An everyday example of ferromagnetism is a refrigerator magnet used to hold notes on a refrigerator door. The attraction between a magnet and ferromagnetic material is ""the quality of magnetism first apparent to the ancient world, and to us today"".Permanent magnets (materials that can be magnetized by an external magnetic field and remain magnetized after the external field is removed) are either ferromagnetic or ferrimagnetic, as are other materials that are noticeably attracted to them. Only a few substances are ferromagnetic. The common ones are iron, nickel, cobalt and most of their alloys, some compounds of rare earth metals, and a few naturally-occurring minerals such as lodestone.Ferromagnetism is very important in industry and modern technology, and is the basis for many electrical and electromechanical devices such as electromagnets, electric motors, generators, transformers, and magnetic storage such as tape recorders, and hard disks.