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On Unitary Evolution in Quantum Field Theory in
On Unitary Evolution in Quantum Field Theory in

... quantum theory in order for a consistent probability interpretation to be possible, where probabilities are conserved in time. In non-relativistic quantum mechanics this is generally not an issue. Also in flat-spacetime quantum field theory, the unitarity of time evolution between equaltime hypersur ...
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... By counting the number of states for D-branes, one can count the number of quantum states of black holes. (Strominger and Vafa 1996)  This holds for the so called supersymmetric black holes where the number of states do not change as the coupling varies. ...
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Recent Progress in Ultracold Atoms

... Dimensionless measure of strength of electromagnetism Small  Perturbation theory works What if you could tune the fine structure constant? ...
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... • From the point of view of the cosmic expansion, the  From the point of view of the cosmic expansion the vortex‐matter system is essentially static. • From the viewpoint vortex‐matter system, cosmic  expansion is extremely fast, but its average effect is to give   an "abnormally" large rate of matt ...
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Elementary particles and typical scales in HEP

... Quantization turns a classical theory to quantum theory (Dirac). Examples: Quantum electrodynamics (QED), where photons appear as the quanta of the electromagnetic field. The Weingerg-Salam model also became a consistent QFT of electroweek interactions (t’Hooft). QFT of strong interactions - quantum ...
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... 2- Technologies based on Quantum Physics could improve the clock-speed of microprocessors, decrease power dissipation & miniaturize more! (e.g. Superconducting processors based on RSFQ, HTMT Technology) Is it possible to do much more? Is there any new kind of information processing based on Quantum ...
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The Rydberg series for the doubly excited states of the helium atom

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Bethe Ansatz in AdS/CFT: from local operators to classical strings

... The Hebrew University of Jerusalem (Israel) Racah Institute of Physics Dep. of Particle Physics*(Weizmann Inst. of Science) Dep. of Particle Physics*(Tel Aviv University) ...
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Quantum field theory

In theoretical physics, quantum field theory (QFT) is a theoretical framework for constructing quantum mechanical models of subatomic particles in particle physics and quasiparticles in condensed matter physics. A QFT treats particles as excited states of an underlying physical field, so these are called field quanta.In quantum field theory, quantum mechanical interactions between particles are described by interaction terms between the corresponding underlying fields.
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