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Probability, Expectation Value and Uncertainty
Probability, Expectation Value and Uncertainty

... e have seen that the physically observable properties of a quantum system are represented by Hermitean operators (also referred to as ‘observables’) such that the eigenvalues of the operator represents all the possible results that could be obtained if the associated physical observable were to be m ...
1  1-0
1 1-0

... section. The wide acceptance of Maxwell’s theory has caused a fundamental shift in our understanding of physical reality. In this theory, electromagnetic fields are the agents of the interaction between material objects. This view differs radically from the older “action at a distance” view that pre ...
$doc.title

... effect, this leads to quantization of the transmitted charge, and is of metrological use [10]. Devices of this type are called ‘single-electron turnstiles’. Charge pumping is achieved by varying certain parameters of the system Hamiltonian periodically with time. When the change is carried out slowl ...
Elektromagnetisme, noter og formelsamling
Elektromagnetisme, noter og formelsamling

Self-Reference, Biologic and the Structure of Reproduction
Self-Reference, Biologic and the Structure of Reproduction

Lecture 8 Gaussian basis sets CHEM6085: Density Functional Theory
Lecture 8 Gaussian basis sets CHEM6085: Density Functional Theory

Inverse magnetic catalysis in QCD and holography
Inverse magnetic catalysis in QCD and holography

... The above leads to the following problem statement: Can we, using holographic methods, find out what happens in QCD at strong coupling, and particularly, what the dependence on a background magnetic field is? Is it possible to understand the lattice results in a holographic setting? If so, then this ...
letters - mceuen group
letters - mceuen group

The theory of dipoles vortex Author: Prof. Vasile Tudor, The
The theory of dipoles vortex Author: Prof. Vasile Tudor, The

... dialectical interpretation of existence on a general level and abstract, the two Universes are not parallel, but coexist, as the universe cvadridimensional dual, having shared the time axis. The concept of "dipole vortex" was not introduced arbitrarily being suggested by the theorems of Gauss for g ...
Condensed Matter Approaches to Quantum Gases
Condensed Matter Approaches to Quantum Gases

... and stimulated theoretical and Monte Carlo studies in this direction. On the basis of both experiment and theory, equilibrium properties and dynamics of trapped Bose-condensed gases are now rather well understood. In the last years a lot of attention has been focused on phase coherence phenomena. Th ...
A Holographic Interpretation of Entanglement Entropy
A Holographic Interpretation of Entanglement Entropy

electric charge, electric field, electric force
electric charge, electric field, electric force

[σB] i - CERN Indico
[σB] i - CERN Indico

...  At the very least, easily factorize branching ratios from the multidimensional parameter space for models.  Experiments will always have to deal with the dirty acceptance, but providing generator-level clean acceptance separately will allow enterprising theorists to tune their simulation tools be ...
Quantum electrodynamics of strong fields?
Quantum electrodynamics of strong fields?

Optical gain in silicon nanocrystals
Optical gain in silicon nanocrystals

... as P is increased. By ®tting these curves with equation (3) we obtain the values of the rise time, ton, at the different P values. The reciprocal of ton is reported in Fig. 6 as a function of J. The data follow a straight line with a slope j < 3 3 10 2 16 cm2 . The intercept of the ®tted straight li ...
Equivalence between free quantum particles and those in harmonic
Equivalence between free quantum particles and those in harmonic

... to have been established first by Niederer in 1972 [5] using group theoretical arguments and by Takagi in 1990 [6] using coordinate transformations. Takagi’s work additionally emphasises that a continuous change of spring constant of the harmonic binding potential over time can be modelled. An associ ...
14. Applications of Free-Space Optical Communications
14. Applications of Free-Space Optical Communications

Quantum effects in energy and charge transfer in an
Quantum effects in energy and charge transfer in an

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4 ALUMNI OF THE SCHOOL OF PHYSICS AND TECHNOLOGY
4 ALUMNI OF THE SCHOOL OF PHYSICS AND TECHNOLOGY

Delcourt, DC and J.-A. Sauvaud, Populating of cusp and
Delcourt, DC and J.-A. Sauvaud, Populating of cusp and

Single Band Effective Mass Equation and Envolvent
Single Band Effective Mass Equation and Envolvent

... instance the CB bottom. The effective mass m* is approximately isotropic for zincblende semiconductors although it is direction-dependent for some other semiconductors. Note that Eq. (2.11) is a second order development of Ev ðkÞ and Ev ð0Þ ¼ Ev;0 is an extremum (maximum or minimum). In general, Ev ...
Physical Entanglement in Permutation
Physical Entanglement in Permutation

... 3. The joint state of any assembly is not entangled iff the constituent systems’ states determine the joint state. Each of the three biconditionals can be construed in two way: (i) as about the standard notion of entanglement, as applied to “distinguishable” quantum systems (i.e. for which permutati ...
Measurement of Quantum Fluctuations in Geometry
Measurement of Quantum Fluctuations in Geometry

slides
slides

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History of quantum field theory

In particle physics, the history of quantum field theory starts with its creation by Paul Dirac, when he attempted to quantize the electromagnetic field in the late 1920s. Major advances in the theory were made in the 1950s, and led to the introduction of quantum electrodynamics (QED). QED was so successful and ""natural"" that efforts were made to use the same basic concepts for the other forces of nature. These efforts were successful in the application of gauge theory to the strong nuclear force and weak nuclear force, producing the modern standard model of particle physics. Efforts to describe gravity using the same techniques have, to date, failed. The study of quantum field theory is alive and flourishing, as are applications of this method to many physical problems. It remains one of the most vital areas of theoretical physics today, providing a common language to many branches of physics.
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