• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
PowerPoint
PowerPoint

... Most students are having difficulties with this topic: The Checkpoints show this clearly. This whole way of thinking (Gauss’ Law) is very unfamiliar to you: calculate a field means, first, pick a surface?? The solution? DON’T PANIC… We’re confident you will master these concepts but it will take a l ...
Anisotropic pyrochlores and the global phase diagram of the checkerboard... Oleg A. Starykh, Akira Furusaki, and Leon Balents
Anisotropic pyrochlores and the global phase diagram of the checkerboard... Oleg A. Starykh, Akira Furusaki, and Leon Balents

... magnetic exchange between spins on different chains does not directly couple to VBS fluctuations, such a dimer coupling between 共certain pairs of兲 chains is inevitably generated by the weak residual magnetic interactions remaining after the dominant antiferromagnetic cancellation. A careful analysis ...
The Hadronic Spectrum of a Holographic Dual of QCD Abstract
The Hadronic Spectrum of a Holographic Dual of QCD Abstract

pdf - ISI Foundation
pdf - ISI Foundation

... 共Received 23 January 2009; published 4 March 2009兲 Quantum phase transitions that take place between two distinct topological phases remain an unexplored area for the applicability of the fidelity approach. Here, we apply this method to spin systems in two and three dimensions and show that the fide ...
Title Goes Here
Title Goes Here

... observed as the red shifts of the band-edge PL peak (BE) with increasing electron density. However, the FES effect in the PLE spectra was surprisingly small. No sharp peak, or no power-law singularity, was observed at the Fermi edge of the PLE spectra. We should notice that the inhomogeneous broaden ...
Antiresonance and interaction-induced localization in spin and qubit chains with defects
Antiresonance and interaction-induced localization in spin and qubit chains with defects

... particular interest in this context. An important class of such systems are disordered spin-1/2 systems. The spin–spin interaction leads to a complicated excitation spectrum, that has been described only in special cases where the system is integrable [1, 2]. A spin-1/2 system can be modelled by a s ...
ppt
ppt

underdetermination and theory succession from the perspective of
underdetermination and theory succession from the perspective of

Quasiclassical Coarse Graining and Thermodynamic Entropy∗
Quasiclassical Coarse Graining and Thermodynamic Entropy∗

A New Form of Matter (pdf, 217 kB)
A New Form of Matter (pdf, 217 kB)

... magnetic traps, the atoms overlapped and formed a single giant (by atomic standards) matter wave. Says Ketterle: "Pictures of BECs can be regarded as photographs of wave functions" -- that is, solutions to Schrodinger's equation. Working independently in 1995, Eric Cornell (National Institute of Sta ...
Document
Document

... “It was quite the most incredible event that ever happened to me in my life. It was almost as incredible as if you had fired a 15-inch shell at a piece of tissue paper and it came back and hit you.” ...
The Mean-Field Limit for the Dynamics of Large Particle Systems
The Mean-Field Limit for the Dynamics of Large Particle Systems

... positrons, protons, neutrons etc... are fermions. That the wave function of a system of N fermions is skew-symmetric implies Pauli’s exclusion principle: two (or more) fermions cannot find themselves in the same quantum state. This apparently innocuous statement has far-reaching physical consequence ...
A Classical-Light Attack on Energy-Time Entangled Quantum Key Distribution, and Countermeasures
A Classical-Light Attack on Energy-Time Entangled Quantum Key Distribution, and Countermeasures

... cannot be understated, as the only way to know that a cryptographic system really is secure is if it can withstand the best cryptanalysis. Were Alice and Bob to choose a cryptographic system which in any way relies on Eve not knowing the inner workings of their system, they will probably fool themse ...
Dynamics of the quantum Duffing oscillator in the driving induced q
Dynamics of the quantum Duffing oscillator in the driving induced q

... first harmonic of the Fourier expansion. These two quantities are used to study the non-linear response of the anharmonic resonator in the stationary long-time limit. The short time dynamics of such a type of master equation is an interesting issue by itself since it is related to the question of com ...
Thermodynamics of van der Waals Fluids with Quantum Statistics
Thermodynamics of van der Waals Fluids with Quantum Statistics

... been proposed to account for repulsive and attractive interactions in the low density approximation [13, 14]. There, authors argued that a quantum generalization of the van der Waals equation of state is a non-trivial task, and proposed three conditions that such a generalization should satisfy. The ...
Hybrid opto-mechanical systems with nitrogen
Hybrid opto-mechanical systems with nitrogen

On the Faithful Interpretation of Pure Wave Mechanics
On the Faithful Interpretation of Pure Wave Mechanics

e - Physlab
e - Physlab

... is confined to a region of space the higher its kinetic energy will be. In an atom the electrons are confined by the Coulomb potential of the nucleus. The competition between the confining nature of the potential and the liberating tendency of the uncertainty principle gives rise to various quantum mec ...
The hydrogen atom as an entangled electron–proton system
The hydrogen atom as an entangled electron–proton system

... which is diagonal and shows that the l eigenvalues are equal to l5 u c l u 2 . This also shows that the eigenvectors with zero eigenvalue do not participate in the expansion. The eigenvalues l are thus both the probabilities of finding subsystem u in the states u u l & and the probabilities of findi ...
NanoTrapS: Trapped nanoparticles for space experiments
NanoTrapS: Trapped nanoparticles for space experiments

Chapter23 english
Chapter23 english

... where ˆr is a unit vector directed from the charge to the point in question. The electric field is directed radially outward from a positive charge and radially inward toward a negative charge. ...
Adaptive beam combining and interferometry with photorefractive quantum wells *
Adaptive beam combining and interferometry with photorefractive quantum wells *

... 2. We observed a large electroabsorption approaching 6000 cm⫺1, which, to our knowledge, is the largest absorption change observed to date in transverse-field photorefractive quantum wells. The departure from quadratic dependence on the applied electric field is described by the function ␳ (h ␯ , F) ...
Direct observation of the current distribution in thin superconducting
Direct observation of the current distribution in thin superconducting

An Ontological Interpretation of the Wave Function - Philsci
An Ontological Interpretation of the Wave Function - Philsci

... predictions of quantum mechanics and is still consistent with experiments.) Concretely speaking, the situation in which physical entity 1 is in (x1 , y1 , z1 ) and physical entity 2 is in (x2 , y2 , z2 ) exists in one part of continuous time, state by the time evolution of the system. The existence ...
The Helium Atom - Oxford Academic
The Helium Atom - Oxford Academic

... days of the Copenhagen School: The Maslov indices related to conjugated points along classical trajectories and their importance for the approach to wave mechanics (which was not developed at those times) were not properly accounted for, and the precise role of periodic trajectories when the classic ...
< 1 ... 139 140 141 142 143 144 145 146 147 ... 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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report