• 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
ppt - Desy
ppt - Desy

On the Stability of Classical Orbits of the Hydrogen Ground State in
On the Stability of Classical Orbits of the Hydrogen Ground State in

... Vd (r ) = −d/2r2 , which has the same form as the angular momentum part L2 /2r2 of the kinetic energy. Such a term may arise from a dipolar force between electron and nucleus, when the deformation of the nucleus, caused by the electron, is always aligned with the vector between them. 3.1. Analysing ...
Markov Chain-Like Quantum Biological Modeling of Mutations
Markov Chain-Like Quantum Biological Modeling of Mutations

Physics Now
Physics Now

... centimetre accuracy and satellite navigation systems should soon tell us our position in space, in the air, sea, or on the surface of the earth with comparable 0.1 nanosecond timing accuracy, or better. The developments in our ability to laser-cool atoms has led to caesium fountain atomic clocks, in ...
Author`s personal copy
Author`s personal copy

Entanglement of Indistinguishable Particles Shared between Two
Entanglement of Indistinguishable Particles Shared between Two

Two-channel competition of autoionizing Rydberg states in an electric field
Two-channel competition of autoionizing Rydberg states in an electric field

... presented in Sec. III, are simulated by full quantum calculations based on multichannel Stark theory 关1–3兴. Moreover, we show that the overall behavior of the spectra can already be simulated by relative simple rate equations. In Sec. IV we derive these equations and compare with the experimental ob ...
Quantum Degeneracy in Two Dimensional Systems
Quantum Degeneracy in Two Dimensional Systems

... As a corollary of this theorem, it is easy to show that the eigenfunctions of the real Hamiltonian can be chosen as real in the coordinate basis in one dimension. For the problems involving a magnetic field, the Hamiltonian is no longer real in the coordinate basis. In fact, due to non-degeneracy of ...
the atomic nucleus - NPAC
the atomic nucleus - NPAC

Topological Quantum: Lecture Notes
Topological Quantum: Lecture Notes

Quantum vs. Classical Magnetization Plateaus of S=1/2 Frustrated
Quantum vs. Classical Magnetization Plateaus of S=1/2 Frustrated

Elliptic Curve Cryptography and Quantum Computing
Elliptic Curve Cryptography and Quantum Computing

ppt of slides
ppt of slides

... Atom Laser : Laser that emits atoms rather than photons. Atoms that can be collimated to travel long distance or brought to a tiny focus. In BEC all atoms have same energy, same de Broglie wavelength, same phase and is described by the same wave function. BEC therefore can be highly monochromatic s ...
Modelling the Role of Charge in Atmospheric Particle
Modelling the Role of Charge in Atmospheric Particle

... produced in the atmosphere, the behaviour and role of charged particles in atmospheric processes needs to be understood. In order to gain insight on the role of charge in atmospheric new particle formation, the electron structure of the molecules taking part in this process needs to be taken into ac ...
van der waals forces - Department of Theoretical Physics
van der waals forces - Department of Theoretical Physics

Physics Department - East Los Angeles College
Physics Department - East Los Angeles College

... The purpose of this course is to prepare students to take the Physics 11 prerequisite challenge test to get into either Physics 1, 6 or 21. The course also prepares students for the higher level physics sequence and provides students with some basic laboratory experience; as such, it is intended to ...
Accuracy of microwave cavity perturbation measurements
Accuracy of microwave cavity perturbation measurements

Closed and Open String Theories in Non-Critical Backgrounds
Closed and Open String Theories in Non-Critical Backgrounds

... four large spacetime dimensions, which has been difficult to understand so far, despite a lot of progress along many directions. 2. The theory of strong interactions of particle physics – Quantum Chromo Dynamics (QCD) – which governs the force that holds a nucleus inside an atom together has string- ...
Photon echo with a few photons in two-level atoms
Photon echo with a few photons in two-level atoms

... involving an ensemble of two-level atoms. A weak pulse, carrying the information to be stored, shines the atomic medium at time t1 and, provided the optical thickness is large enough, is fully converted into atomic coherences. Evolving at different frequencies, the coherences build up different spec ...
A Mathematical Characterization of the Physical Structure of Observers
A Mathematical Characterization of the Physical Structure of Observers

... of ω and the a priori probability of an observer is the supremum of the a priori probabilities of his possible manifestations. Observers like us, have an accurate picture of reality. This is, firstly, in the sense that such observers define themselves through a consistent narrative(15) with a relat ...
Quantum Statistical Response Functions
Quantum Statistical Response Functions

... will have to treat which are absent in the description of the groundstate properties of isolated molecules. • We will have to decide how to describe a quantum system statistically rather than by specifying its wavefunction. • We will have to describe the time dependent interaction with the external ...
Toward a scalable, silicon-based quantum computing architecture
Toward a scalable, silicon-based quantum computing architecture

The quantummechanical wave equations from a
The quantummechanical wave equations from a

... of it of which still gives rise to debates, as the attached probability density function, which determines to find a particle at certain time at a certain position, is not positive definite [3]. To overcome this difficulty, Dirac proposed, by a brilliant mathematical manipulation, a solution which d ...
Department of Physics, Chemistry and Biology Master’s Thesis
Department of Physics, Chemistry and Biology Master’s Thesis

... be ignored. However, those neglected interactions may lead to additional features. If any other interaction terms, e.g. long-range interactions, between bosons on different sites of the lattice are included, then a different Bose-Hubbard model is obtained. The model is called the extended Bose-Hubba ...
Ground-state cooling of a trapped ion using long
Ground-state cooling of a trapped ion using long

... system that is resilient to noise in the magnetic field [28–30]. Preparation and detection of the dressed-state system is achieved using the method described in Ref. [30]. For preparation, a microwave π pulse transfers the population to j00 i after the ion has been optically pumped into the j0i stat ...
< 1 ... 109 110 111 112 113 114 115 116 117 ... 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