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Quantum Games and Quantum Strategies
Quantum Games and Quantum Strategies

... for all ÛB [ S such that no player can gain from unilaterally deviating from Q̂ ≠ Q̂. It can be shown that Q̂ ≠ Q̂ is a unique equilibrium, that is, rational reasoning dictates that both players play Q̂ as their optimal strategy. It is interesting to see that Q̂ ≠ Q̂ has the property to be Pareto o ...
in PPT
in PPT

... Sinf(ρ) = -0.71 log2 .71 – 0.29 log2 .29 = 0.868 bits The eigenvalues of ρ are 0.242 and 0.758 and, therefore, the von Neumann entropy is: ...
Spinons and triplons in spatially anisotropic triangular antiferromagnet Oleg Starykh
Spinons and triplons in spatially anisotropic triangular antiferromagnet Oleg Starykh

... – immediately stabilizes spiral state • orthogonal spins on neighboring chains ...
What is and to which end does one study Bohmian Mechanics?
What is and to which end does one study Bohmian Mechanics?

... shot. However, this implies that the pointer momentum must be very uncertain, and it is this uncertainty that creates the uncontrollable, irreversible disturbance associated with measurement. In a “weak” measurement, the pointer shift is small and little information can be gained on a single shot; b ...
Theory of the muon g-2 [0.3cm] Why the 9th decimal
Theory of the muon g-2 [0.3cm] Why the 9th decimal

... important success for newly developed methods of quantum field theory. ae , aµ : effect at the per-mille level. For comparison: gs,proton = 5.59, gs,neutron = −3.83 (neutral particle !) → big deviations from gs,Dirac = 2: early hints (1933, 1940) on substructure of proton and neutron. “Explained” by ...
What is a Photon? - Indian Academy of Sciences
What is a Photon? - Indian Academy of Sciences

Packard Poster-2 - Northwestern University Mesoscopic Physics
Packard Poster-2 - Northwestern University Mesoscopic Physics

... Cooper pairs of electrons are naturally created. Though the constituent electrons of these pairs form a single quantum object, they are spatially separated by a coherence length x which can extend several hundred nanometers. As this length scale is now easily accessible to modern nanolithographic te ...
Electronic Structure of Sr2RuO4
Electronic Structure of Sr2RuO4

... Metallic Hydrogen Latest results: theory, again… • At very low temperatures, de Broglie wavelength becomes comparable to inter-atom separation • ! Metallic superfluid - or even a superconducting superfluid - at 4 Mbars? ...
history
history

... experiment. In 1887 Heinrich Hertz observed the photoelectric effect. Electrons are emmited from metal when irradiated by an electromagnetic wave. In 1905 Albert Einstein came with his explanation of the photoelectric effect by describing light being composed of discrete quanta called photons. The l ...
Chaotic Scattering of Microwaves in Billiards: Induced Time
Chaotic Scattering of Microwaves in Billiards: Induced Time

Developments of the Theory of Spin Susceptibility in Metals
Developments of the Theory of Spin Susceptibility in Metals

... Brazilian Journal of Physics, vol. 27, no. 4, december, 1997 have equal coupling and parallel magnetization, there is a symmetric bound state, and, for large enough distances between the plates, also an antisymmetric bound stste. The distance where this state ceases to exist is not visible in the p ...
hdwsmp2011 - FSU High Energy Physics
hdwsmp2011 - FSU High Energy Physics

...  Colliding bunches of protons and anti-protons; bunches meet each other every 396 ns in the center of two detectors (DØ and CDF) (steered apart at other places)  Each particle has ~ 980 GeV of energy, so the total energy in the center of mass ...
1 Handout #11 ME 262A Summary on Quantum States We showed
1 Handout #11 ME 262A Summary on Quantum States We showed

A Study of Norwegian Upper Secondary Physics Specialists
A Study of Norwegian Upper Secondary Physics Specialists

... distribution of students’ answers. The participating students answered a written questionnaire with several items covering different parts of the quantum physics curriculum, not only questions on atomic models and the wave-particle duality as will be presented in the talk. A complete presentation of ...
Quantum ElectroDynamics
Quantum ElectroDynamics

A particle-wave model of the electron
A particle-wave model of the electron

Correlation Functions and Diagrams
Correlation Functions and Diagrams

... formulation. They contain the physical information we are interested in (e.g. scattering amplitudes) and have a simple expansion in terms of Feynman diagrams. This chapter develops this formalism, which will be the language used for the rest of the course. 1 Sources The path integral gives us the ti ...
Conductance quantization and quantum Hall effect
Conductance quantization and quantum Hall effect

Fulltext PDF
Fulltext PDF

... of static electricity, and the magnetic properties of lodestone. Later, Democritus and Leucippus propounded the atomic concept of matter, not in a casual manner but based on careful reasoning. However, it goes without saying that philosophical thinking in these early times had a considerable specula ...
T - MPS
T - MPS

... Here we introduced the total pressure tensor, P = Pe + Pi . In the nonlinear parts of the advection term we can neglect the light electrons entirely. ...
Caltech Team Produces Squeezed Light Using a Silicon
Caltech Team Produces Squeezed Light Using a Silicon

Spontaneously broken gauge symmetry in a Bose gas with constant
Spontaneously broken gauge symmetry in a Bose gas with constant

... the order paramter in the above way, since the theorem implies that order parameters must be non-local objects. Indeed, position dependend single particle wave functions can not change their symmetry properties during BoseEinstein condensation spontaneously for sufficiently weak interactions, thus i ...
Art Hobson There are no particles, there are only fields 1
Art Hobson There are no particles, there are only fields 1

PowerPoint 演示文稿
PowerPoint 演示文稿

... number A=37 has na abundance of 24.6%.The resulting relative atomic mass of the isotope mixture is Arel=35.457. There are elements with only one stable isotope,for example ; and others with two stable isotopes, ...
Supersymmetry as a probe of the topology of manifolds
Supersymmetry as a probe of the topology of manifolds

< 1 ... 345 346 347 348 349 350 351 352 353 ... 562 >

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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