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The pressure increase at 4He l–point explained by means of the
The pressure increase at 4He l–point explained by means of the

... a phenomenon that happens between an ideal gas and its condensed quantum phase. As far as it concerns the liquid He4, the phenomenon is slightly different being, by the fact, a transition between a real gas (in the fluid phase) and its quantum condensed phase so that the transition temperature is sm ...
Seminar Report
Seminar Report

Monday, Apr. 18, 2005
Monday, Apr. 18, 2005

... Baryons and Mesons (the observed particles) are color charge neutral ...
Effective Nuclear Charge
Effective Nuclear Charge

... quantum electrodynamics (QED), gluons themselves participate in strong interactions. The gluon has the ability to do this as it itself carries the colour charge and so interacts with itself, making QCD significantly harder to analyze than QED. ...
Monday, Nov. 6, 2006
Monday, Nov. 6, 2006

Lecture 2
Lecture 2

How Stands Collapse II
How Stands Collapse II

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... directions and the m = 0 atoms are not deflected at all. ...
Symmetries and quantum field theory: an introduction Jean-No¨ el Fuchs
Symmetries and quantum field theory: an introduction Jean-No¨ el Fuchs

Scattering model for quantum random walks on a hypercube
Scattering model for quantum random walks on a hypercube

Electric Field Lines
Electric Field Lines

... • Electric fields exists around any conductor or insulator that contains a charge. • The electric field intensity is a measure of the force on a test charge placed in the field. • The strength of the field is proportional to the density of field lines. • Field lines are perpendicular to all charged ...
Direct Coulomb and Exchange Interaction in Artificial Atoms
Direct Coulomb and Exchange Interaction in Artificial Atoms

L z
L z

Thomas-Fermi Theory for Atoms in a Strong Magnetic Field
Thomas-Fermi Theory for Atoms in a Strong Magnetic Field

Induced-charge Electro-osmosis
Induced-charge Electro-osmosis

Physics 2170
Physics 2170

... The first observations that eventually lead to quantum mechanics came from light (more generally electromagnetic radiation). Blackbody radiation, photoelectric effect, Compton effect… However, it turns out the real quantum mechanics behind light (Quantum Electrodynamics or QED) is well beyond the sc ...
Infrared and ultraviolet cutoffs of quantum field theory
Infrared and ultraviolet cutoffs of quantum field theory

string theory: big problem for small size
string theory: big problem for small size

... The typical length of a string is of the order of 10 − 33 cm , known as Planck length. If all elementary particles are really states of a string, then why we do not see this stringy structure inside various elementary particles like electrons, quarks, etc.? The answer is that the typical size of a s ...
polarizability project
polarizability project

... of type 1denoted by eIx0I in equations (30) and (31).It would be wrong however to assume that the field by this force turns a dipole from one equilibrium position to another. It should also be realized that though every charge is displaced elastically (case 1) the fraction of dipoles turned by a fie ...
wbm-physics
wbm-physics

... Rest energy E0 = mc2  For an electron, 81.87 x 10-15 J or 0.511 MeV  Mass of subatomic particles is often expressed in MeV/c2 to make the numbers easier to work with  Mass of electron = 0.511 MeV/c2 ...
From photoelectric effect to digital imaging - beim Quantum Spin
From photoelectric effect to digital imaging - beim Quantum Spin

g-2 , muon edm and deuteron edm at a high intensity storage ring
g-2 , muon edm and deuteron edm at a high intensity storage ring

... Unique opportunity of studying phases of mixing matrix for SUSY particles Historically, limits on dE have been strong tests for new physics models EDM would be the first tight limit on dE from a second generation particle The experiments are hard but, in particular the EDM, not impossible A large ...
Probability density of quantum expectation values
Probability density of quantum expectation values

Science Journals — AAAS
Science Journals — AAAS

Quantum Rings with Two Deeply Bound Electrons under a Magnetic
Quantum Rings with Two Deeply Bound Electrons under a Magnetic

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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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