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PoS(QG-Ph)011
PoS(QG-Ph)011

ACAT2005_Severyanov
ACAT2005_Severyanov

... Using ideas published in [1] we have written a C# program tool enabling us to assemble an arbitrary quantum circuit in a particular gate basis and to construct the corresponding set of polynomial equations over Z2. The number of solutions of the set defines the matrix elements of the circuit and th ...
Solved Problems in the Quantum Theory of Light
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... The derivation of the Compton formula in 1922 was the first application of the idea that the momentum p of a photon is related to its wavelength λ by p = h/λ. The reconciliation of this “wave-particle duality” was resolved with the subsequent invention of Quantum Mechanics and the development Quantu ...
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Eddington`s Theory of Gravity and Its Progeny
Eddington`s Theory of Gravity and Its Progeny

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... elementary particle used to be rewarded by a Nobel Prize, but such a discovery now ought to be punished by a $10,000 fine ». In order to determine the properties of elementary particles experimentally it is necessary to subject them to external forces or to allow them to interact with each other. Th ...
Magnetotransport of Topological Insulators
Magnetotransport of Topological Insulators

... In order to learn some of the basic properties of our TIs, which were grown in the MBE lab at Notre Dame, we performed magnetotransport on Bi2Se3, Bi2Te3, and Bi2(TeSe)3. We accomplished this by soldering samples of various materials, size, and thickness to a sample holder. The sample holder was wir ...
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... (e.g. lepton number, baryon number) that don’t seem to have a long range force associated with them! Perhaps these are not exact symmetries!  evidence for neutrino oscillation implies lepton number violation. c) Theories with local gauge invariance can be renormalizable, i.e. can use perturbation t ...
Spontaneous Symmetry Breaking in Non Abelian Gauge Theories
Spontaneous Symmetry Breaking in Non Abelian Gauge Theories

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Nano-material - McMaster University > ECE

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(Dynamical) quantum typicality: What is it and what are its

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... • Principle Quantum Number: • The principle quantum number, symbolized by “n”, indicates the main energy level occupied by the electron. • Values of “n” are positive integers only: 1,2,3 . . . • An electron for which n=1 occupies the first, or lowest, main energy level and is located closest to the ...
Entanglement via the Quantum Zeno Effect, Phys. Rev. Lett. 100
Entanglement via the Quantum Zeno Effect, Phys. Rev. Lett. 100

A More Efficient Way to Describe Interacting Quantum Particles in 1D
A More Efficient Way to Describe Interacting Quantum Particles in 1D

... What is fascinating about the hydrodynamics framework developed by Castro-Alvaredo et al. and Bertini et al. is that the differential equations they derived have a surprisingly simple and general form. That this was possible was largely unexpected. To see this, it’s worth reviewing two basic assumpt ...
Field Particles - X-ray and Observational Astronomy Group
Field Particles - X-ray and Observational Astronomy Group

... • No isolated quark has ever been observed • Believed impossible to obtain an isolated quark • If the PE between quarks increases with separation distance, an infinite amount of energy may be required to ...
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6 I – Rocket Science

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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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