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Edward Wilson-Ewing, 23rd February 2015 [PDF 1.69MB]
Edward Wilson-Ewing, 23rd February 2015 [PDF 1.69MB]

Aspects of quantum information theory
Aspects of quantum information theory

Completeness and the zx-calculus
Completeness and the zx-calculus

... V seems intuitively equal to this one: U V for any single-qubit gates U and V , and it is possible to make this equality rigorous. Furthermore, the equivalence of the two diagrams is much more intuitively obvious than the ...
"Loop Quantum Gravity" (Rovelli)
"Loop Quantum Gravity" (Rovelli)

... order to take into account what we have learned with both our present "fundamental" theories. The difference between the formulation of the problem of quantum gravity given by a highenergy physicist and a relativist derives therefore from a different evaluation of general relativity. For the first, ...
Quantum Mechanics
Quantum Mechanics

Full-Text PDF
Full-Text PDF

IMPRECISE MEASUREMENTS IN QUANTUM MECHANICS
IMPRECISE MEASUREMENTS IN QUANTUM MECHANICS

... can be passed in theoretical investigations, and, being aware of the idealization, one may concentrate on absolutely accurate measurements. However, in quantum mechanics imprecision has a fundamental role. For instance, there is no joint measurement for sharp position and momentum observables. These ...
Physical Foundations of Quantum Electronics
Physical Foundations of Quantum Electronics

Momentum
Momentum

the problem book
the problem book

Spin Squeezing, Macrorealism and the Heisenberg uncertainty
Spin Squeezing, Macrorealism and the Heisenberg uncertainty

... etc.) and classical principles, such as the fact that outcomes of measurements just reveal preexisting properties of a system and can be in principle obtained with an arbitrarily small perturbation of the input state [21, 175]. Even more strikingly, as noted first by Einstein, Podolsky and Rosen in ...
Non-Abelian Anyons and Topological Quantum Computation
Non-Abelian Anyons and Topological Quantum Computation

Quantum Scattering Theory and Applications
Quantum Scattering Theory and Applications

Quantum Computation: Theory and Implementation
Quantum Computation: Theory and Implementation

... Submitted to the Department of Physics in Partial Fulfillment of the Requirements for the Degree of Bachelor of Science in Physics and to the Department of Electrical Engineering and Computer Science in Partial Fulfillment of the Requirements for the Degrees of Bachelor of Science in Electrical Engi ...
I. Bell`s Theorem (pdf file)
I. Bell`s Theorem (pdf file)

... N(A, not B) + N(B, not C) ≥ N(A, not C) Here’s the proof. Proof: The proof involves considering three conditions at once, such as N(A, not B,C ), “the number of red fish that are small (not big) and that are spotted.” Since the numbers of fish in any such category is always ≥ 0 , (e.g., both N(A, no ...
Studies in Quantum Information Theory
Studies in Quantum Information Theory

... Beginning as a student in his electromagnetism class at The University of New Mexico (UNM), Carl immediately showed himself to be both someone who students could learn from and someone whose company would always be a welcome addition. Carl supervised my honors thesis at UNM—a project that was ambiti ...
Ecole Doctorale de Physique et de Chimie Physique
Ecole Doctorale de Physique et de Chimie Physique

... Large Hadron Collider (LHC) at CERN collecting data. Indeed, this enormous machine able to collide protons at a center of mass energy of 14 TeV promises to unveil the mystery around the physics at such energy scales. From the physicists side, the expectations are very strong as it is nowadays a cert ...
Quantum violation of classical physics in macroscopic systems
Quantum violation of classical physics in macroscopic systems

Observation of topological links associated with Hopf
Observation of topological links associated with Hopf

Embedding Quantum Simulators Roberto Di Candia
Embedding Quantum Simulators Roberto Di Candia

On Exotic Orders in Stongly Correlated Systems
On Exotic Orders in Stongly Correlated Systems

The use of spin-pure and non-orthogonal Hilbert spaces in Full
The use of spin-pure and non-orthogonal Hilbert spaces in Full

In Search of Quantum Reality
In Search of Quantum Reality

Ellis-part1
Ellis-part1

... • What is the origin of particle masses? due to a Higgs boson? + other physics? solution at energy < 1 TeV (1000 GeV) ...
Regularity and Approximability of Electronic Wave Functions
Regularity and Approximability of Electronic Wave Functions

... where the sum extends over the multi-indices k = (k1 , . . . , kd ) ∈ Nd and its convergence has to be understood in the L2 -sense. The speed of convergence of this series depends on that with which the expansion coefficients ub(k) decay. Assume, for example, that u is continuously differentiable, w ...
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Propagator

In quantum mechanics and quantum field theory, the propagator gives the probability amplitude for a particle to travel from one place to another in a given time, or to travel with a certain energy and momentum. In Feynman diagrams, which calculate the rate of collisions in quantum field theory, virtual particles contribute their propagator to the rate of the scattering event described by the diagram. They also can be viewed as the inverse of the wave operator appropriate to the particle, and are therefore often called Green's functions.
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