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Pair Production and the Light-front Vacuum
Pair Production and the Light-front Vacuum

Controlling heat and particle currents in nanodevices
Controlling heat and particle currents in nanodevices

spin networks and the bracket polynomial
spin networks and the bracket polynomial

... vertex, as we have described it, is a combinatorial version of taking the tensor product of two irreducible representations of SU (2), and projecting the result into an irreducible factor of the tensor product. The spin network calculus shows that this theory, based on SU (2) has a completely combin ...
The strange (hi)story of particles and waves*
The strange (hi)story of particles and waves*



approximation of thermal equilibrium for quantum gases with
approximation of thermal equilibrium for quantum gases with

... distribution function can be used to derive quantum mechanical corrections for macroscopic fluid dynamical equations. As in the classical case, equations for the nonequilibrium densities of particles, momentum, and energy can be derived by building the appropriate moments of the nonequilibrium quant ...
The Wigner function and quantum state tomography
The Wigner function and quantum state tomography

Lattice QCD
Lattice QCD

Derivation of the Equation E=mc2-v3.odt
Derivation of the Equation E=mc2-v3.odt

Quantum collision theory with phase-space distributions
Quantum collision theory with phase-space distributions

... "hot spot" model, hydrodynamical models) which emphasize collective and transport behavior are especially suitable for examination in this framework. It was, in fact, our earlier interest in the Landau hydrodynamical model (Landau, 1953) of particle production which led to our search for an underlyi ...
Quantum tunneling and stochastic resonance - Physik Uni
Quantum tunneling and stochastic resonance - Physik Uni

... classical transmission factor v R / v b ,1 determines the difference between the transition-state-theory result and the correct classical rate due to diffusive recrossing of the barrier. Equation ~1.1! generalizes the pioneering work by Kramers @11# on the effects of frequency-independent friction o ...
Uncertainty Principle Tutorial part II
Uncertainty Principle Tutorial part II

... (c) In the previous problem (question 7.b), if we don’t know the outcome after the measurement of A , what is the overall probability (compared to the initial state  ) of obtaining the value  if we measure B after the measurement of A ? Explain. (Hint: suppose the complete set of eigenstates of th ...
Spectral Analysis of Nonrelativistic Quantum Electrodynamics
Spectral Analysis of Nonrelativistic Quantum Electrodynamics

... In this lecture I review the progress achieved during the past decade on the mathematical description of quantum mechanical matter interacting with the quantized radiation field. My main focus will be on the results I have obtained in collaboration with Jürg Fröhlich and Israel Michael Sigal [8, 9 ...
arXiv:1008.1839v2 [hep-th] 12 Aug 2010
arXiv:1008.1839v2 [hep-th] 12 Aug 2010

Electric fields and quantum wormholes
Electric fields and quantum wormholes

Algebraic Quantum Field Theory on Curved Spacetimes
Algebraic Quantum Field Theory on Curved Spacetimes

... or null. Extending this, we call a vector field v : M → T M spacelike, timelike, lightlike, or causal if it possesses this property at every point. Finally, we call a curve c : R ⊃ I → M, with I an interval, spacelike, timelike, lightlike, or causal if its tangent vector field bears this property. N ...
R14
R14

Particle Shape Factors and Their Use in Image
Particle Shape Factors and Their Use in Image

... relative refractive index. Conversely, it is possible to disperse a particle in a diluent in which both have equivalent refractive indices. This is known as refractive index matching, which reduces the contrast to zero, effectively making the particle invisible in its matched diluent. In situations ...
Introduction - Wave Structure of Matter (WSM)
Introduction - Wave Structure of Matter (WSM)

... Equation is given in Eisele (1960). Battey-Pratt et al (1986) show spin in more detail. Geometric Requirements of Electron Spin. Electrons cannot spin separately from the space of which they are structured and connected. If they spin freely as discrete particles, the connected space would twist itse ...
gaussian wavepackets
gaussian wavepackets

Understanding the destruction of nth
Understanding the destruction of nth

Vacuum-Entanglement
Vacuum-Entanglement

Lecture Notes: Condensed Matter Theory I (TKM1)
Lecture Notes: Condensed Matter Theory I (TKM1)

... that the …eld also contributes to the accumulation of fundamental knowledge and to major philosophical issues of our times. The value of Planck’s quantum, ~, or of the electron charge, e, are de…ned via solid state e¤ects in semiconductors and metals (the quantum Hall e¤ect and the Josephson e¤ect). ...
BARRIER PENETRATION AND INSTANTONS J. ZINN - IPhT
BARRIER PENETRATION AND INSTANTONS J. ZINN - IPhT

The principle of relativity and the De Broglie relation - Loreto
The principle of relativity and the De Broglie relation - Loreto

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Propagator

In quantum mechanics and quantum field theory, the propagator gives the probability amplitude for a particle to travel from one place to another in a given time, or to travel with a certain energy and momentum. In Feynman diagrams, which calculate the rate of collisions in quantum field theory, virtual particles contribute their propagator to the rate of the scattering event described by the diagram. They also can be viewed as the inverse of the wave operator appropriate to the particle, and are therefore often called Green's functions.
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