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Radiative cascade of highly excited hydrogen atoms in strong magnetic... Türker Topçu and Francis Robicheaux 兲
Radiative cascade of highly excited hydrogen atoms in strong magnetic... Türker Topçu and Francis Robicheaux 兲

... roughly 关1兴 16 K and 关2,3兴 4 K in magnetic fields of about 3 and 5.4 T, respectively. The goal is to perform Lorentz and CPT violation checks in the hyperfine spectrum of the 2s → 1s transition 关4兴 for which the transition frequency is accurately known to about 1 part in 1014 for atomic beam of hydr ...
Introduction to Quantum Information
Introduction to Quantum Information

... key idea was that probabilities depend on what you know; if we acquire additional information then this modifies the probabilities. Today such reasoning is uncontentious and forms part of the prevailing paradigm in much of probability theory (Jeffreys, 1939; Box and Tiao 1973; Bretthorst 1988; Lee 1 ...
Analysis of the famous experiment of Grangier, Roger, and Aspect
Analysis of the famous experiment of Grangier, Roger, and Aspect

Electrical current carried by neutral quasiparticles - KITP
Electrical current carried by neutral quasiparticles - KITP

Weakton Model of Elementary Particles and Decay Mechanisms
Weakton Model of Elementary Particles and Decay Mechanisms

Voltage-tunable ferromagnetism in semimagnetic quantum dots with
Voltage-tunable ferromagnetism in semimagnetic quantum dots with

... material systems.4 This ability to externally control the properties of magnetic crystals with means other than the external magnetic field may have important device applications. An important feature of modern nanotechnology is the ability to shape semiconductor crystals, designing their quantum pr ...
journey in being: new world-cosmology - Home page-
journey in being: new world-cosmology - Home page-

... contrary this means that the possibility on this earth is Necessary but not that the occurrence was necessary, probable, or given) The laws of science, the articles of religion, the depictions of Art and literature including fiction, the extreme fantasies of imagination are realized (except for logi ...
Quadrupole Ion Traps
Quadrupole Ion Traps

... The idea of trapping charged particles developed from studies on electrical discharges and has continuously evolved from extensive research in the fields of mass filters and particle accelerators. Investigation of the properties of an electrical discharge between a very thin filament cathode and a c ...
Quantum Gravity : Motivations and Alternatives 1
Quantum Gravity : Motivations and Alternatives 1

... But this does not exclude the possibility that gravity – in contrast to the intuition leading to the assumption of quantum properties of the gravitational field – could be an intrinsically classical phenomenon, emerging from a quantum substrate without gravitational degrees of freedom. It is at leas ...
Photon pairs with coherence time exceeding 1 μs
Photon pairs with coherence time exceeding 1 μs

... Received 7 April 2014; revised 4 June 2014; accepted 5 June 2014 (Doc. ID 209700); published 6 August 2014 ...
Path  Integrals and the  Quantum Routhian David  Poland
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Hadronization of Quark Theories
Hadronization of Quark Theories

... flux tubes between quarks and antiquarks which have a fixed diameter of the order of the Compton wavelength of the pion. Since the field energy is to lowest order proportional to the square of the field strength, the energy of the flux tube grows linearly with the length and leads to quark confineme ...
A wave-particle duality at a macroscopic
A wave-particle duality at a macroscopic

The Matter Glitch
The Matter Glitch

Response by Colin Hopkins
Response by Colin Hopkins

... Para 4: ... Students consider how physics contributes to such diverse areas as engineering, renewable energy generation, communication, development of new materials, transport and vehicle safety, medical science, an understanding of climate change, and the exploration of the universe. This does not ...
Chapter 21 Electric Charge and the Electric Field 1 Electric Charge
Chapter 21 Electric Charge and the Electric Field 1 Electric Charge

... Figure 12: This is Fig. 21.22 showing the electric field E the other negative. For an electric dipole, the two charges must be equal and opposite, q2 = −q1 . In this figure, point c is the vertex of an isosceles triangle, and therefore the same distance r from both of the charges. q1 = 12 nC. ...
The Matter Glitch
The Matter Glitch

Strong coupling: Infrared limit of integrable quantum system MRL of
Strong coupling: Infrared limit of integrable quantum system MRL of

On inelastic hydrogen atom collisions in stellar atmospheres
On inelastic hydrogen atom collisions in stellar atmospheres

... and extensions of the classical formula for ionization of atoms by electron impact due to Thomson (1912). In Thomson’s theory, the bound electron in the target atom is considered as a stationary free classical electron. The Coulomb interaction of an incident classical electron with the atomic electr ...
gauge-like variables for ordered media containing defects - HAL
gauge-like variables for ordered media containing defects - HAL

Magnetotransport in 2DEG
Magnetotransport in 2DEG

... Since 1 January 1990, the quantum Hall effect has been used by most National Metrology Institutes as the primary resistance standard. For this purpose, the International Committee for Weights and Measures (CIPM) set the imperfectly known constant RK (=quantized Hall resistance on plateau 1) to the t ...
Gravitational Induction and the Gyroscopic Force
Gravitational Induction and the Gyroscopic Force

Daniel Dennett`s Compatibilism
Daniel Dennett`s Compatibilism

... to fall into sequence. Would evolution occur in a deterministic world, a Laplacean world where mutation was caused by a nonrandom process? Yes, for what evolution requires is an unpatterned generator of raw material, not an uncaused generator of raw material. Quantum-level effects may indeed play a ...
Black hole spectroscopy from Loop Quantum Gravity models
Black hole spectroscopy from Loop Quantum Gravity models

M15/03
M15/03

... University of Denver Denver, Colorado 80208, U.S.A. [email protected] Abstract One could begin a study like the present one by simply postulating that our universe is four-dimensional. There are ample reasons for doing this. Experience, observation and experiment all point to the fact that we inhabit a ...
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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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