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A Further Look at Waveguide Lasers
A Further Look at Waveguide Lasers

Were Bohr and Einstein both right
Were Bohr and Einstein both right

... be measured, is now explained, because in the urs it constitutes the measurement standard for the whole universe and so quite logically there is nothing further to measure it against! • And so is the fact of quantum holographic encoding and decoding for which it is the ultimate reference phase/frame ...
Enhanced Symmetries and the Ground State of String Theory
Enhanced Symmetries and the Ground State of String Theory

... superpotential. For example, there is a set of flat directions labeled by chiral fields ūd¯d. These would be exactly flat if one had a (discrete) R symmetry under which the ū, d¯ and ē fields were neutral. It is also possible to find flat directions for which all of the standard model gauge symme ...
Quantum Computing - Department of Physics and Astronomy
Quantum Computing - Department of Physics and Astronomy

... • When the number of transistors goes down, so does the overall dimensions • Transistor size will approach quantum dimensions in ~6-10 years! • We had better be ready to embrace a new approach. ...
quantum field theory course version 03
quantum field theory course version 03

... improved due to Kontsevich. In (1) there is no mathematical understanding what the Feynman integrals should really mean1. The measures are not known, and if they were the integrals would be likely to diverge, and there are claims that whatever we do our expectations for the precise meaning of Feynma ...
Symmetry Priniciples And Conservation Laws
Symmetry Priniciples And Conservation Laws

... Lee, T.D. (1988). Particle Physics and Introduction to Field Theory, 865 pp. Harwood Academic Publishers GmbH, Chur, Switzerland. [This book presents a comprehensive discussion to the ideas that have shaped our thinking about the elementary constituents of matter]. Nambu, Y. (1985). Quarks, 228 pp. ...
The Facets of Relativistic Quantum Field Theory1
The Facets of Relativistic Quantum Field Theory1

The Classical Universes of the No-Boundary Quantum State
The Classical Universes of the No-Boundary Quantum State

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Majorana Fermions and Non-Abelian Statistics in

... junction connecting the spheres, resulting in a 2 phase slip. Thus, the braiding operation can be smoothly deformed into a ‘‘braidless’’ operation, where 1 , 3 are held fixed, but the phase difference between the two SCs advances by 2. A similar but more feasible version of the braidless operati ...
Quantum Computing
Quantum Computing

Quantum Field Theory in a Non-Commutative Space: Sphere ?
Quantum Field Theory in a Non-Commutative Space: Sphere ?

... where the cl,m are the components of the Φ matrix in a given basis (e.g.: in the polarisation tensor one), and can be interpreted as the dynamical degrees of freedom of the matrix model. The right-hand side of equation (8) can be evaluated perturbatively, or estimated numerically from Monte Carlo si ...
Renormalization and quantum field theory
Renormalization and quantum field theory

... Feynman propagators or advanced and retarded propagators that can have more complicated wave front sets. For most common cut propagators in Minkowski space, this follows from the fact that their Fourier transforms have support in the positive cone. The condition about being expressible in terms of s ...
A Quantum Information Processing Explanation of Disjunction Effects
A Quantum Information Processing Explanation of Disjunction Effects

... may have a tendency to believe simultaneously that a defendant is surely guilty and surely not guilty, and this is not the same as believing the defendant is moderately guilty. How can the quantum model account for the disjunction effect? Shafir and Tversky (1992) offered a possible explanation that ...
security engineering - University of Sydney
security engineering - University of Sydney

Quantum Field Theory in Curved Spacetime
Quantum Field Theory in Curved Spacetime

DY 61.1–61.8 - DPG
DY 61.1–61.8 - DPG

... production tolerances. Therefore we have generalized the perturbation theory for microdisk cavities to treat such asymmetric deformations. This allows us to describe interesting non-Hermitian phenomena like copropagation of optical modes in the (counter-)clockwise direction inside the cavity. The de ...
Quantum Phase Transitions - Subir Sachdev
Quantum Phase Transitions - Subir Sachdev

Operator Algebras and Index Theorems in Quantum Field Theory
Operator Algebras and Index Theorems in Quantum Field Theory

... relate our setting with Connes’ Noncommutative Geometry. A link should be possible in a supersymmetric context, where cyclic cohomology appears. In this respect model analysis with our point of view, in particular in the supersymmetric frame, may be of interest. Note also that Connes’ spectral actio ...
cosmic natural selection as an explanation for our fine
cosmic natural selection as an explanation for our fine

... One approach to addressing the origin of laws, initial conditions, and irreversibility is to posit that the universe is not unique but one of an infinite ensemble of causally disconnected universes—the multiverse.3 In such scenarios, Newton’s paradigm goes unchallenged. And given that the paradigm m ...
Towards quantum template matching
Towards quantum template matching

... logical operations as the size of the problem increases—than the best classical algorithm known2 , which inspires the hope that there are superior quantum algorithms for other classical problems. Subsequent discoveries of quantum algorithms for unstructured3 and structured4,5,6,7,8 search, for the s ...
THE BLACK HOLE INTERPRETATION OF STRING THEORY 1
THE BLACK HOLE INTERPRETATION OF STRING THEORY 1

Quantum Criticality and Black Holes
Quantum Criticality and Black Holes

... Weaken some bonds to induce spin entanglement in a new quantum phase ...
Quantum Electrodynamics and Plasmonic Resonance of Metallic
Quantum Electrodynamics and Plasmonic Resonance of Metallic

... nanostructure through the depolarization factor, n(z) . Hence the resonant frequency ωres of the nanostructure is determined primarily by its shape as opposed to its size. This fact has been well established and exploited in plasmonics22,23 . More importantly, γ in eqn.(8) is a monotonically decreas ...
Dynamic Cognitive Modeling
Dynamic Cognitive Modeling

1 Introduction. Measurable and Nonmea
1 Introduction. Measurable and Nonmea

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Topological quantum field theory

A topological quantum field theory (or topological field theory or TQFT) is a quantum field theory which computes topological invariants.Although TQFTs were invented by physicists, they are also of mathematical interest, being related to, among other things, knot theory and the theory of four-manifolds in algebraic topology, and to the theory of moduli spaces in algebraic geometry. Donaldson, Jones, Witten, and Kontsevich have all won Fields Medals for work related to topological field theory.In condensed matter physics, topological quantum field theories are the low energy effective theories of topologically ordered states, such as fractional quantum Hall states, string-net condensed states, and other strongly correlated quantum liquid states.
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