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SOLID STATE QUANTUM COMPUTING USING SPECTRAL HOLES
SOLID STATE QUANTUM COMPUTING USING SPECTRAL HOLES

... coherent interactions between pairs of qubits, and to read out the value of qubits.1,2 Current methods for addressing qubits are divided up into spatial methods, as when a laser beam is focused on an individual qubit3,4,5 or spectral methods, as when a nuclear spin in a molecule is addressed using N ...
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... All of the points are equidistant from both charges. Since the charges are equal and opposite, their contributions to the potential cancel out everywhere along the mid-plane between the charges. Follow-up: What is the direction of the electric field at all 4 points? ...
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Walker3_ConcepTests_Ch20

... from it should never be made available to students except by instructors using the accompanying text in their classes. All recipients of this work are expected to abide by these restrictions and to honor the intended pedagogical purposes and the needs of other instructors who rely on these materials ...
Phys. Rev. B 76, 035315 (2007) - Petta Group
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Quantum Computation - University of Denver

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Feasible Nanometric Magnetoresistance Devices
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... Aδ(z) represents the source of electrons at the surface of the flat cathode, and Bδ(z) is responsible for an ”instant” kick that each electron gets when it leaves the cathode. The self-field of the electrons in the non-relativistic case can be written in terms of a Green’s function in cylindrical co ...
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... radiate particles due to quantum fluctuations and that the spectrum of this radiation should be thermal. Those ideas gave rise to various calculations for the emission of photons and leptons. Due to the non-Abelian nature of QCD the emission of quarks and gluons is more complicated. The aim of this ...
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Algorithms and Architectures for Quantum Computers
Algorithms and Architectures for Quantum Computers

... computers, and after years of testing, modeling, and planning, we have come to understand how this can be achieved by combining fault tolerance techniques developed by von Neumann, with methods from atomic physics. Our main approach is to develop highly integrated trapped ion systems, in which state ...
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Theory of x-ray absorption by laser-dressed atoms

... the presence of an optical laser. The Hartree-FockSlater mean-field model [23, 24] is utilized to treat the atomic many-electron problem. This choice is adequate as shakeup and shakeoff effects are generally weak in inner-shell photoionization. They do not play a role in the immediate vicinity of th ...
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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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