• 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
Simple examples of second quantization 4
Simple examples of second quantization 4

Bose-Einstein condensation of excitons and cold atoms OECS13
Bose-Einstein condensation of excitons and cold atoms OECS13

... An indirect exciton is a bound pair of an electron and a hole confined in spatially separated semiconductor layers. Long lifetimes of indirect excitons allow them to cool down to low temperatures below the temperature of quantum degeneracy. In coherent exciton gases the spin relaxation mechanisms li ...
The Strong Free Will Theorem
The Strong Free Will Theorem

Path Integrals
Path Integrals

- Europhysics News
- Europhysics News

... events between an insulation “off-state” and a quantized conducting “on-state” (at 1 G 0 ), where the quantum conductance (red curves) of the switch is controlled by the gate potential (blue curves), as commonly observed in transistors. As calculations have shown [10], for atomic-scale silver contac ...
THE TOWNSEND IONIZATION OOEFFICIENTS IN OROSSED
THE TOWNSEND IONIZATION OOEFFICIENTS IN OROSSED

Semiclassical theory of helium atom
Semiclassical theory of helium atom

... the helium atom have been computed quantum mechanically by numerically solving the Schrödinger equation for the two-electron Hamiltonian of helium. To that end, besides the orbital dynamics, the spin degree of freedom of the two electrons has to be considered. The electron spins can be paired antipa ...
Coupling Electrons, Phonons, and Photons for Nonequilibrium
Coupling Electrons, Phonons, and Photons for Nonequilibrium

Chapter 8, Lecture 1
Chapter 8, Lecture 1

... Nuclear Physics and Quantum Mechanics: Neutron Stars At the end of their lives, nucleosynthesis in stars stops and the stars collapse to white dwarfs. In white dwarfs, the gravitational force is balanced by “electron degeneracy”. [According to the Pauli-exclusion principle, no two electrons (fermion ...
Observations on Hyperplane: II. Dynamical Variables and
Observations on Hyperplane: II. Dynamical Variables and

Quantum Hall effect
Quantum Hall effect

Particle Statistics Affects Quantum Decay and Fano Interference
Particle Statistics Affects Quantum Decay and Fano Interference

... multipath decay channels can lead to Fano interference and asymmetric line shapes (Fano resonances [4,5]). Fano’s model [4,5] is a landmark in modern physics. First developed to explain the behavior of electrons scattered by excited atoms [4], it was later adopted to explain phenomena in a number of ...
Temporal Multimode Storage of Entangled Photon Pairs
Temporal Multimode Storage of Entangled Photon Pairs

Quantum dynamics of cold trapped ions with application to quantum
Quantum dynamics of cold trapped ions with application to quantum

... A quantum computer is a device in which data can be stored in a network of quantum mechanical two-level systems, such as spin-1/2 particles or two-level atoms. The quantum mechanical nature of such systems allows the possibility of a powerful new feature to be incorporated into data processing, name ...
Natural Systems of Units
Natural Systems of Units

Coherent, Squeezed, and Thermal State of Harmonic Oscillator with
Coherent, Squeezed, and Thermal State of Harmonic Oscillator with

... With the jump on these trends, we are motivated to study the many-sided quantum properties in coherent state, in squeezed state, and in thermal state as well as in number state for the time-dependent harmonic oscillator. To do this, we consider damped harmonic oscillator with exponentially decreasin ...
Transport properties of quantum-classical systems
Transport properties of quantum-classical systems

Chapter 21 - Interactive Learning Toolkit
Chapter 21 - Interactive Learning Toolkit

... How is the electrical interaction related to other kinds of interactions? (demo: strength of the electrical interaction) • In what forms does charge exist? (later) • What interactions involve charge? and what are their characteristics? (next) ...
Complexity Science, Living Systems, and Reflexing Interfaces:
Complexity Science, Living Systems, and Reflexing Interfaces:

25 Years of Quantum Hall Effect (QHE) A Personal
25 Years of Quantum Hall Effect (QHE) A Personal

... The most important equation in connection with the quantized Hall resistance, the equation UH = h/e2 ·I, is written down for the first time in my notebook with the date 4.2.1980. A copy of this page is reproduced in Fig. 3. The validity and the experimental confirmation of this fundamental equation ...
Finding a Better-than-Classical Quantum AND/OR Algorithm using
Finding a Better-than-Classical Quantum AND/OR Algorithm using

... In previous work we described the evolution of quantum algorithms by means of standard, tree-based genetic programming, by means of stack-based linear genome genetic programming, and by means of stackless linear genome genetic programming [16, 17]. We started with the most conventional genetic progr ...
progress in quantum foundations - Department of Computer Science
progress in quantum foundations - Department of Computer Science

If I bring a charged rod to a leaf electrometer: A] nothing will happen
If I bring a charged rod to a leaf electrometer: A] nothing will happen

... The negative charge on the inner surface will be concentrated close to the positive charge. (The E field next to the surface is stronger there !) If there is +9Q of charge on the outer surface, will the charge density on the outer surface be uniform? ...
Phase Distribution of the Output of Jaynes
Phase Distribution of the Output of Jaynes

Long Distance, Unconditional Teleportation of Atomic States V 87, N
Long Distance, Unconditional Teleportation of Atomic States V 87, N

... quantum network [1]. A method is developed for creating entanglement between two distant atoms using entangled photons. These atoms can exchange quantum information by the process of teleportation [2]. Quantum information processing needs only to be performed locally. The scheme should allow reliabl ...
< 1 ... 214 215 216 217 218 219 220 221 222 ... 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