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Quantum dissection of a covalent bond with the entanglement
Quantum dissection of a covalent bond with the entanglement

... There are many interesting properties of the C2 molecule that can be determined from the entanglement spectrum. To address recent VB studies, we are concerned specifically with the possibilities of anti-ferromagnetic correlations5, 11 , which are described as an increase in probability of electrons ...
Renormalisation of Noncommutative Quantum Field Theory
Renormalisation of Noncommutative Quantum Field Theory

... Since classical field theories can be geometrically described, it is not difficult to write down classical action functionals on noncommutative spaces. The first example of this type was Yang-Mills theory on the noncommutative torus. Another example is the noncommutative geometrical description of t ...
RANDOM MATRIX THEORY IN PHYSICS
RANDOM MATRIX THEORY IN PHYSICS

Bogolyubov transformation
Bogolyubov transformation

... We start from the mean field approximation. This is an educated way, similar to (almost identical with) the HARTREE APPROXIMATION we know for many electron systems. Most of the interactions is indeed absorbed into the mean field and what remains are explicit quantum correlation corrections ...
Slide sem título - Instituto de Física / UFRJ
Slide sem título - Instituto de Física / UFRJ

Quantum Chaos and Quantum Information
Quantum Chaos and Quantum Information

Book of Abstracts
Book of Abstracts

... Every square matrix is characterized by its symmetric polynomials. The method for calculating any analytic matrix function by means of symmetric polynomials is presented. This symmetric polynomials method is demonstrated on the example of matrix exponential. The scattering matrix of n-th order is ca ...
preskill-ARO-2013 - Caltech Particle Theory
preskill-ARO-2013 - Caltech Particle Theory

... – in fact, this mapping exists for classical reversible circuits too, if we use a different representation of the braid group – If Bob claims to have a quantum computer, Alice can propose that Bob execute a quantum circuit that obfuscates a classical circuit, where Alice can easily check the answer. ...
URL
URL

... impact parameter p and velocity u (Section IX). The large time limit of the thermal average, which leads to the familiar impact theories in the line center, is investigated in detail in ihe Appendix for different cutoff procedures and compared with the results in the literature. In Section X, a meth ...
Dirac multimode ket-bra operators` [equation]
Dirac multimode ket-bra operators` [equation]

... While we are recalling the theory of integration within normally ordered-, antinormally ordered- and Weyl orderedproduct of operators which respectively lead to normal ordering, antinormal ordering and Weyl ordering [10] of operators after performing the corresponding integration over ket-bras, this ...
Metaphors for Abstract Concepts: Visual Art and Quantum Mechanics
Metaphors for Abstract Concepts: Visual Art and Quantum Mechanics

Elementary Introduction to Quantum Field Theory in Curved Spacetime
Elementary Introduction to Quantum Field Theory in Curved Spacetime

... “bra-ket” symbols: vectors are denoted by |ai, |bi, and the corresponding covectors by ha|, hb|, etc. Presently, we use the Heisenberg picture, in which the operators depend on time but the quantum states are time-independent. This picture is more convenient for developing quantum field theory than ...
PHYSICAL FOUNDATIONS OF COSMOLOGY - Assets
PHYSICAL FOUNDATIONS OF COSMOLOGY - Assets

... Until that time, we had no idea of properties of matter at densities much greater than nuclear density ∼ 1014 g/cm3 , and everybody thought that the main thing we need to know about the early universe is the equation of state of superdense matter. In the beginning of the 1970s we learned that not on ...
Confusions and questions about the information paradox 1 September 17, 2009
Confusions and questions about the information paradox 1 September 17, 2009

... between the radiated quanta {b} and the (M, {c}) quanta in the hole. • When the evaporation has proceeded to the point where the black hole mass is say 100lp , we stop our discussion, Quantum gravity has not been strong anywhere. There are only three options: (A) The hole completely evaporates, in w ...
Light-like -deformations and scalar field theory via Drinfeld twist
Light-like -deformations and scalar field theory via Drinfeld twist

... Abelian [9, 8] and Jordanian twist [10], but the problem with these twists is that they can not be expressed in terms of the Poincaré generators only. The κ-Poincaré-Hopf algebra was obtained using a twist in a Hopf algebroid approach in [11]. Particularly, a full description of deformation of Poi ...
Master Thesis
Master Thesis

... The twentieth century has brought a revolution in the world of science and technology, with the development of quantum mechanics and the theory of computation among the greatest advances. The advancement of technology gave rise to digital computers, whose power growth has been described successfully ...
Topological Insulators
Topological Insulators

The classical entropy of quantum states=110ptJoint work with Elliott
The classical entropy of quantum states=110ptJoint work with Elliott

... (’79) suggested a definition of their classical entropy based on the coherent state transform. He conjectured that this classical entropy is minimized by states that also minimize the Heisenberg uncertainty inequality, i.e., Gaussian coherent states. Lieb (’78) proved this conjecture and conjectured ...
On the Utility of Entanglement in Quantum Neural Computing
On the Utility of Entanglement in Quantum Neural Computing

Coleman progress - Rutgers Physics
Coleman progress - Rutgers Physics

Quantum Physical Symbol Systems
Quantum Physical Symbol Systems

... probability assignments are updated according to a mathematical formula called Bayes rule. The revised probabilities are used for subsequent predictions and decisions. Although many textbooks take states, consequences, acts, probabilities and utilities as givens, it is possible to construct a decisi ...
Lamb shift
Lamb shift

Chaos and the semiclassical limit of quantum mechanics (is the
Chaos and the semiclassical limit of quantum mechanics (is the

... (shared by many physical theories that are limits of other theories) complicates the reduction to classical mechanics. Particular interest attaches to the situation where the classical orbits are chaotic, that is, unpredictable. Then if the system is isolated the corresponding quantum motion (e.g. o ...
Module Guide
Module Guide

... Handouts will usually be available at lectures, but in order to cut down on paper, we will also be posting copies of slides and any other handouts that we produce on the module web site (see below for details). From weeks 9 – 13 the mathematical strand will be delivered during the Monday sessions on ...
The Weak Force: From Fermi to Feynman
The Weak Force: From Fermi to Feynman

... nucleus with A=14 and Z=7, there would be 14 protons and 7 electrons. So the total number of fermions3 in the Nitrogen nucleus is A + (A − Z) = 2A − Z = 21. An system composed of an odd number of fermions is itself a fermion. However, it was clear from experiments that the Nitrogen nucleus and other ...
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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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