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Effective Field Theory Lectures
Effective Field Theory Lectures

... theories of particle physics at low energy without having to know everything about physics at short distances. For example, we can discuss precision radiative corrections in the weak interactions without having a grand unified theory or a quantum theory of gravity. The price we pay is that we have a ...
Coherent control of macroscopic quantum states in a single
Coherent control of macroscopic quantum states in a single

ELECTRONIC STRUCTURE OF ORGANIC SEMICONDUCTORS
ELECTRONIC STRUCTURE OF ORGANIC SEMICONDUCTORS

Quantum Public-Key Cryptosystems
Quantum Public-Key Cryptosystems

... QC is one of the solutions to the above-mentioned problem when a QTM is realized in the future: that is, QC will be used for key-distribution in place of public-key encryption if a QTM is realized. The major difference between QC and QPKC is that QC employs a quantum channel (and classical channel) w ...
Simple Theory of the Magnetic Properties of Rare
Simple Theory of the Magnetic Properties of Rare

... used successfully' to explain the n-y phase transition in cerium metal. It assumes that the levels and the conduction band are not hybridized. ...
Action_Resonance_Theory__ART_
Action_Resonance_Theory__ART_

... accepted as adding h/2 Joule.sec to the angular momentum or spin of elementary particles, such as electrons and nucleons or molecular assemblies of such particles. ART is based on the idea that the action state of molecules is generated and sustained by the energy the system of molecules contains. ...
Quantum Spin Hall Effect and their Topological Design of Devices
Quantum Spin Hall Effect and their Topological Design of Devices

... three classes of the topological insulators and the manager of the charge conservation symmetry and spin- S z conservation symmetry, which establish certain behavior of the manager scopes to the time reversal symmetry, relating the periodicity with the time reversal symmetry of these insulator desig ...
Many-electron transport in strongly correlated nondegenerate two-dimensional electron systems *
Many-electron transport in strongly correlated nondegenerate two-dimensional electron systems *

... rate. In what follows we use the term ‘‘moderately strong fields’’ for classically strong magnetic fields that satisfy condition ~7!. In the range ~7! an electron moves classically and has a well-defined kinetic energy p 2 /2m;T and a well-defined potential energy in the field of other electrons. Un ...
Fractionally charged impurity states of a fractional quantum Hall system
Fractionally charged impurity states of a fractional quantum Hall system

... of finite-sized systems [20], including the present one. These non-Laughlin-quasi-particles, if present, could also be bound to an impurity potential. A signature of this would be a bound-state spectral weight that approaches unity. For the largest system sizes studied in the present work, we do fin ...
Many-electron transport in strongly correlated nondegenerate 2D
Many-electron transport in strongly correlated nondegenerate 2D

... rate. In what follows we use the term ‘‘moderately strong fields’’ for classically strong magnetic fields that satisfy condition ~7!. In the range ~7! an electron moves classically and has a well-defined kinetic energy p 2 /2m;T and a well-defined potential energy in the field of other electrons. Un ...
Aran Sivaguru Dissertation
Aran Sivaguru Dissertation

Mutually unbiased bases, orthogonal Latin squares, and hidden
Mutually unbiased bases, orthogonal Latin squares, and hidden

... each number exactly once. Two Latin squares, A = 关Aij兴 and B = 关Bij兴, are orthogonal if all ordered pairs 共Aij , Bij兲 are distinct. There are at most d − 1 OLSs and this set is called complete. The existence of L OLSs is equivalent to the existence of a combinatorial design called a net with L + 2 r ...
Nanoelectromechanical systems
Nanoelectromechanical systems

... that by most standards such quantum effects would be deemed macroscopic. It is important to appreciate that we are here referring to quantum effects in ‘dirty real’ devices that possess both many electronic and mechanical degrees of freedom, and which interact strongly with the surrounding environment ...
POLYNOMIAL-TIME ALGORITHMS FOR PRIME FACTORIZATION
POLYNOMIAL-TIME ALGORITHMS FOR PRIME FACTORIZATION

... the state of the system. The laws of quantum mechanics permit only unitary transformations of state vectors. A unitary matrix is one whose conjugate transpose is equal to its inverse, and requiring state transformations to be represented by unitary matrices ensures that summing the probability over ...
Quantum random walks and their boundaries
Quantum random walks and their boundaries

Solving the Boltzmann equation to obtain electron transport
Solving the Boltzmann equation to obtain electron transport

Quantum cryptography
Quantum cryptography

... • protons, electrons and neutrons (from which matter is built); • photons (which carry electromagnetic radiation) • various “elementary particles” which mediate other interactions in physics. We call them particles in spite of the fact that some of their properties are totally unlike the properties ...
Incoherent dynamics in neutron
Incoherent dynamics in neutron

... the microsystem and the apparatus and showing typical particlelike features, should not be neglected. This attitude is exemplified in neutron optics by the use of the ‘‘coherent wave’’ formalism, instead of a reduced density-matrix description, as usually adopted in quantum optics. In this paper we ...
- RZ User
- RZ User

... wave packets during position measurements. In a Wilson chamber, one could observe tracks of droplets that can be regarded as successions of such position measurements along particle trajectories. As a consequence, Schrödinger seemed to resign when Max Born, influenced by Wolfgang Pauli, re-interpret ...
THE DETERMINATION OF LOW ENERGY ELECTRON
THE DETERMINATION OF LOW ENERGY ELECTRON

Heat diffusion from the more general perspective and its application
Heat diffusion from the more general perspective and its application

... Decoherence of longer wavelengths in nanomagnetic structures is smaller than in normal crystalline material (The coherent behavior is possible if the wavelength is longer then the smallest distance in the medium. In nanomagnetic materials is this minimal wavelength 10 or 10000 times longer than in n ...
spp-scatt_01
spp-scatt_01

... • Scattering in 1D systems is weak due to restricted phase space available for the electron: k -> -k. • However, scattering at high (drift) electric field is inevitable due to emission of an optical phonon. Which provides a fast relaxation mechanism for the hot electrons (and holes). • Inelastic sca ...
Spin-entangled electrons - Theoretical Physics at University of
Spin-entangled electrons - Theoretical Physics at University of

... any local description. However, from a quantum information point of view, entanglement and non-locality are “features” rather than “bugs” of quantum mechanics. This is so because entanglement between remote parties (A and B) in a quantum communications setting can be used as a resource for a variety ...
The Theory of Scale Relativity - LUTH
The Theory of Scale Relativity - LUTH

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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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