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lec16
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Continuity Equation
Continuity Equation

... Excess carriers in s/c cause non-equilibrium condition, where most of s/c devices operate under this circumstances. Carriers may be generated by: forward-bias of p-n junction, incident light, and impact ionization. Continuity equation – the governing equation for the rate of charge carriers. Thermio ...
Initial Conditions from Inflation
Initial Conditions from Inflation

... perturbations are well-known. The only reason that we are able to connect late-time observables to inflationary theories is the fact that the wavelengths of the perturbations of interest were outside the horizon during the period from well before the end of inflation until the relatively near presen ...
Adiabatic State Preparation of Interacting Two-Level Systems R. T. Brierley, C. Creatore,
Adiabatic State Preparation of Interacting Two-Level Systems R. T. Brierley, C. Creatore,

... collection of interacting two-level systems. Such a model arises in a wide range of many-body quantum systems, such as cavity QED or quantum dots, where a nonlinear component couples to light. We analyze the one-dimensional case using the Jordan-Wigner transformation, as well as the mean-field limit ...
The Electric Field
The Electric Field

... E&M Fields. Little program that lets you explore fields and forces. An old dos program, runs fine in Windows XP. The fine print: click on the link, select “open,” and follow the prompts. This will copy a small (1.2 megabyte) set of files in the folder c:\Program Files\emfield. You can change the ins ...
Chapter 42
Chapter 42

Properties of electrons scattered on a strong plane electromagnetic
Properties of electrons scattered on a strong plane electromagnetic

... equation in the leading nontrivial order in the size of the wave packet. So, in fact, we have to investigate the solutions to the LD equation. In the standard S matrix approach, we need to sum an infinite number of diagrams with soft photons in order to describe such dynamics of the electron wave pa ...
The Quantum Mechanics of Faraday`s Law
The Quantum Mechanics of Faraday`s Law

Electric Fields
Electric Fields

General Principles and Electrostatics
General Principles and Electrostatics

... region is called a field. If the value of the physical function at each point is a scalar quantity, then the field is a scalar field. 4. Briefly explain the sources of electromagnetic fields. Whenever there is a flow of current in a conductor, magnetic field is produced around the conductor which is ...
Deviations from exponential law and Van Hove`s “2t” limit
Deviations from exponential law and Van Hove`s “2t” limit

Rewriting the Rydberg Formula
Rewriting the Rydberg Formula

(Quantumness in the context of) Resource Theories
(Quantumness in the context of) Resource Theories

... The theory is still reversible, and rather than the negentropy governing state transitions, one then finds that the free energy F = TrHρ−T S(ρ) governs state transitions. The single-shot case of thermodynamics was considered in [12, 23]. This is important if we wish to consider the thermodynamics of ...
Genetic Programming for Quantum Computers - Faculty
Genetic Programming for Quantum Computers - Faculty

Slides - MAGNETISM.eu
Slides - MAGNETISM.eu

... • Exchange interaction within the electron gas since the electron with the same spins avoid each other the energy of electron-electron repulsion is reduced ⇒ cohesion energy of metals • kinetic energy of electron gas ...
5 Discrete Symmetries
5 Discrete Symmetries

Physics Today - Portland State University
Physics Today - Portland State University

... Down-conversion is a process in which one ultraviolet photon converts into two photons inside a nonlinear crystal.4 This process allows one to construct "two-particle interferometers" that entangle the two photons in a way that needn't involve polarization at all. Many experimental groups independen ...
Quantum Manipulation Using Light-Atom Interaction
Quantum Manipulation Using Light-Atom Interaction

... The obtainable spin squeezing improves with the quality of the resonator and the number of atoms. Fig. 4 shows the calculated spin squeezing for a typical atom number (N=2×104) and varying finesse of the resonator. Note that we obtain excellent agreement between the calculation [23] and the experime ...
PPT - Fernando Brandao
PPT - Fernando Brandao

Introduction to quantum Fisher information
Introduction to quantum Fisher information

Heriot-Watt University Free-Space Quantum Signatures Using
Heriot-Watt University Free-Space Quantum Signatures Using

Universidad de Cantabria ON LIGHT SCATTERING BY NANOPARTICLES WITH CONVENTIONAL AND NON-CONVENTIONAL
Universidad de Cantabria ON LIGHT SCATTERING BY NANOPARTICLES WITH CONVENTIONAL AND NON-CONVENTIONAL

... more precisely on systems at the nanometer scale. Mie theory, as described above, is valid for all particle sizes and incident wavelengths. However, for very small particles compared to wavelength, some approximations can be applied, which simplify the expressions given in the previous section. Sinc ...
sonification of quantum spectra
sonification of quantum spectra

... They are made up of quarks, the last known constituents of matter. The forces that determine their behavior are described within Quantum Chromodynamics (QCD). This theory i s well established; e.g. the Nobel Prize 2004 was awarded for its development. Early on it was shown that QCD is solvable with ...
View PDF - CiteSeerX
View PDF - CiteSeerX

... usual interpretive axioms of quantum mechanics come into play only when the system interacts with something else, is ‘observed’. For the universe there is nothing else, and quantum mechanics in its traditional form has simply nothing else to say. It gives no way of, indeed no meaning of, picking out ...
Polarizability and Collective Excitations in Semiconductor Quantum
Polarizability and Collective Excitations in Semiconductor Quantum

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History of quantum field theory

In particle physics, the history of quantum field theory starts with its creation by Paul Dirac, when he attempted to quantize the electromagnetic field in the late 1920s. Major advances in the theory were made in the 1950s, and led to the introduction of quantum electrodynamics (QED). QED was so successful and ""natural"" that efforts were made to use the same basic concepts for the other forces of nature. These efforts were successful in the application of gauge theory to the strong nuclear force and weak nuclear force, producing the modern standard model of particle physics. Efforts to describe gravity using the same techniques have, to date, failed. The study of quantum field theory is alive and flourishing, as are applications of this method to many physical problems. It remains one of the most vital areas of theoretical physics today, providing a common language to many branches of physics.
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