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Angular Momentum Coupling and Rabi Frequencies for Simple
Angular Momentum Coupling and Rabi Frequencies for Simple

... (for a two-level atom). To be explicit, Γ is in radians per second, whereas ∆ν is in Hertz. The lifetime depends only on the dipole moment of the transition between the levels in question (which goes into any Rabi frequency calculation) and the energy-density correspoinding to the zero-point fluctut ...
Nonclassical states of light propagating in Kerr media
Nonclassical states of light propagating in Kerr media

... will be the subject of our concern in this chapter, reveals a number of interesting features that we are going to address here. Nonclassical effects associated with the anharmonic oscillator model have been discussed in many papers [224], and more generally, effects associated with the light propaga ...
INDIAN INSTITUTE OF SCIENCE EDUCATION AND RESEARCH
INDIAN INSTITUTE OF SCIENCE EDUCATION AND RESEARCH

Effective Mass
Effective Mass

Creating arbitrary quantum vibrational states in a carbon nanotube
Creating arbitrary quantum vibrational states in a carbon nanotube

... between two supports (Fig. 1). The QD is controlled by voltages on the electrodes at the ends of the CNT. The resonance frequency of the CNT ωp can be adjusted by the back gates. The strength and the frequency of the electric driving field are denoted as λ and ω. In CNTs, there exists a curvature in ...
Multiverse or Universe, after all
Multiverse or Universe, after all

Ionization Energies of the Elements Manifest Natural Harmonies of
Ionization Energies of the Elements Manifest Natural Harmonies of

... See the article on hydrogen spectral lines! h × R∞ is of course the ionization energy, the energy that can “liberate” the electron… λ∞ is approximatively known from experiment because wavelengths in the proximity of the limit are measurable. Such an observed line is 91.8125 nm (NIST data). The theor ...
Quantum Channel Construction with Circuit Quantum
Quantum Channel Construction with Circuit Quantum

Robust estimation and control under commitment Lars Peter Hansen a
Robust estimation and control under commitment Lars Peter Hansen a

... rule that is robust to a set of statistically difficult to detect misspecifications of it? This paper studies a decision maker who makes his fear of model misspecification concrete by surrounding his approximating model with the set of all alternative models whose expected log likelihood ratios (i.e., ...
Half-integral weight Eichler integrals and quantum modular forms
Half-integral weight Eichler integrals and quantum modular forms

Introduction to Quantum Computing (2010) (e-book)
Introduction to Quantum Computing (2010) (e-book)

Controlled Coupling and Occupation of Silicon Atomic Quantum Dots
Controlled Coupling and Occupation of Silicon Atomic Quantum Dots

... In Fig. 4b a fourth coupled DB (DB4) is created by STM tip-induced removal of a single H atom. The schematic in Fig. 4 shows that the four DB structure deviates from a regular rectangular arrangement. The most widely separated DBs in the group of four DBs (DB2 and DB4) are darkest in appearance. No ...
Acknowlegements: Betsy Beise, Abhay Deshpande, Naomi Makins, Kent Paschke, Bernd Surrow... www.particleadventure.org
Acknowlegements: Betsy Beise, Abhay Deshpande, Naomi Makins, Kent Paschke, Bernd Surrow... www.particleadventure.org

... electrons and protons Quantitative understanding leads to deeper knowledge about the dynamics of QCD at long distance scales ...
Aspects of the Quantum Hall Effect
Aspects of the Quantum Hall Effect

... as von Klitzing’s group, in extremely clean gallium arsenide (GaAs) heterostructures [109]. They found, in addition to the integer plateaus, additional steps in the Hall resistance at fractional values of the filling factor, at ν = 13 , 51 and so on. The theoretical obstacle to explaining these feat ...
The physics behind chemistry, and the Periodic Table
The physics behind chemistry, and the Periodic Table

Quantum Mechanics Made Simple: Lecture Notes
Quantum Mechanics Made Simple: Lecture Notes

Wellposedness of a nonlinear, logarithmic Schrödinger equation of
Wellposedness of a nonlinear, logarithmic Schrödinger equation of

... (ii) The dynamics underlying (3)–(6) is (topologically) equivalent to that associated with the initial–boundary value problem consisting of Eq. (12) subject to the conditions (13)–(14),  in the sense that there exists a suitable homeomorphism in C [0, T ); Hδ2 that carries strong solutions of (3)–( ...
URL - StealthSkater
URL - StealthSkater

... of prime. As a special case, p-adic length scale hypothesis follows. The weak form of NMP allows also quantum computations which halt (unlike the strong form of NMP). Besides number theoretic negentropies, there are also other new elements as compared to the earlier formulation of NMP. 1. ZEO modifi ...
Quantum computers - Quantum Engineering Group
Quantum computers - Quantum Engineering Group

Computing with Highly Mixed States
Computing with Highly Mixed States

Spin-Mediated Consciousness Theory: Possible Roles
Spin-Mediated Consciousness Theory: Possible Roles

On the work of Igor Frenkel
On the work of Igor Frenkel

... of which was later published in the paper [Fth]. In his thesis, Frenkel adapts the orbital theory of A. A. Kirillov to the setting of affine Lie algebras, giving, in particular, a formula for the characters of irreducible highest weight representations in terms of orbital integrals. The technical to ...
A Quantum Version of The Spectral Decomposition Theorem of
A Quantum Version of The Spectral Decomposition Theorem of

The Time Dependent Schrödinger Equation
The Time Dependent Schrödinger Equation

... Our state will in general change with time due to V(x,t). Thus  is a function of time and space ...
Adiabatic Quantum State Generation and Statistical Zero Knowledge
Adiabatic Quantum State Generation and Statistical Zero Knowledge

< 1 ... 70 71 72 73 74 75 76 77 78 ... 514 >

Quantum electrodynamics



In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. QED mathematically describes all phenomena involving electrically charged particles interacting by means of exchange of photons and represents the quantum counterpart of classical electromagnetism giving a complete account of matter and light interaction.In technical terms, QED can be described as a perturbation theory of the electromagnetic quantum vacuum. Richard Feynman called it ""the jewel of physics"" for its extremely accurate predictions of quantities like the anomalous magnetic moment of the electron and the Lamb shift of the energy levels of hydrogen.
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