• 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
Lecture 2: Electronics and Mechanics on the Nanometer Scale
Lecture 2: Electronics and Mechanics on the Nanometer Scale

... degrees of freedom present in the solid. Even though such interactions may be relatively weak they could produce a significant effect on a large enough time scale. The interactions cause dissipation of the mechanical energy and stochastic deviations from the otherwise regular mechanical vibrations ( ...
Progress Towards the Quantum Limit: High and Low Frequency Measurements of
Progress Towards the Quantum Limit: High and Low Frequency Measurements of

... Nano-electro-mechanical systems (NEMS) in particular provide an opportunity to study macroscopic and theoretically quantum mechanical systems up close. Cantilevers or doubly-clamped beams on the order of 100 − 1000 nm in size and weighing 10−15 − 10−17 g have already provided extremely sensitive too ...
arXiv:1210.1847v1 [hep-ph] 4 Oct 2012
arXiv:1210.1847v1 [hep-ph] 4 Oct 2012

scattering states from time-dependent density functional theory
scattering states from time-dependent density functional theory

PowerPoint Presentation - Gravity on quantized space-times
PowerPoint Presentation - Gravity on quantized space-times

...  Conclusion: µγγ can be enhanced only by introducing new charged particles, Xγγother  S. Dawson and E. Furlan, Phys. Rev. D 86, 015021 (2012) [arXiv:1205.4733 [hep-ph]];  M. Carena, I. Low and C. E. M. Wagner, JHEP 1208, 060 (2012) [arXiv:1206.1082 [hepph]];  H. An, T. Liu and L. -T. Wang, arXiv ...
Quantum Error Correction - Quantum Theory Group at CMU
Quantum Error Correction - Quantum Theory Group at CMU

... should be on the lookout for quantum algorithms which are more error-tolerant than those known at present. ⋆ Quantum error correction was developed in analogy with classical error correcting codes, but in the quantum case one needs a few additional tricks. Rather than introducing these in the abstra ...
Many Body Quantum Mechanics
Many Body Quantum Mechanics

... 1.1 DEFINITION (Hilbert Space). A Hilbert Space H is a vector space endowed with a sesquilinear map (·, ·) : H × H → C (i.e., a map which is conjugate linear in the first variable and linear in the second1 ) such that kφk = (φ, φ)1/2 defines a norm on H which makes H into a complete metric space. 1. ...
On the physical basis of cosmic time - Philsci
On the physical basis of cosmic time - Philsci

... We find that a first problem arises above the quark-gluon phase transition (which roughly occurs when the cosmological model is extrapolated back to ∼ 10−5 seconds) where there might be no bound systems left, and the concept of a physical length scale to a certain extent disappears. A more serious p ...
Title Visible to near infrared conversion in Ce3+-Yb3+ Co
Title Visible to near infrared conversion in Ce3+-Yb3+ Co

Exact numerical simulations of strongly interacting atoms in 1D trap
Exact numerical simulations of strongly interacting atoms in 1D trap

quantum mechanical methods for enzyme kinetics
quantum mechanical methods for enzyme kinetics

... where ρ CM(T, z) represents the classical mechanical probability density as a function of z, which can be evaluated by carrying out molecular dynamics or Monte Carlo simulations using umbrella sampling (35) or free energy perturbation techniques (36). Quantum mechanics enters the computation of the ...
PiezoelectricEnergyHarvesting-app1.pdf
PiezoelectricEnergyHarvesting-app1.pdf

... isotropy is defined here as the 12-plane (or the xy-plane). The piezoelectric material therefore exhibits symmetry about the 3-axis (or the z-axis), which is the poling axis of the material. The field variables are the stress components (Ti j ), strain components (Si j ), electric field components ( ...
The noncommutative geometry of the quantum Hall effect
The noncommutative geometry of the quantum Hall effect

... low temperature had a geometric origin. The universality of this effect had then an explanation. Moreover, as proposed by Prange,“” Thouless,” and Halperin,51 the plateaux of the Hall conductance which appear while changing the magnetic field or the charge-carrier density, are due to localization. N ...
- Philsci
- Philsci

... too subjective and psychological and therefore unfruitful (a well-known objection: cf. Hempel 1965, p. 413). The present paper argues, pace Newton-Smith, that understanding can fulfil the desired unifying role. It presents an analysis of the nature of scientific understanding and answers the questi ...
- Free Documents
- Free Documents

... is a consequence of the general covariance of the theory. In the explosion of work that followed, it became clear that a useful framework for under standing this situation is Atiyahs axiomatic description of a topological quantum eld theory, or TQFT. On the other hand, at about the same time as Jone ...
Quantum many-body systems exactly solved by special functions
Quantum many-body systems exactly solved by special functions

Nitrate and Nitrite Ultraviolet Actinometers - SUNY-ESF
Nitrate and Nitrite Ultraviolet Actinometers - SUNY-ESF

2013 HSC Physics Marking guidelines
2013 HSC Physics Marking guidelines

... quanta when he was investigating black body radiation. The energy of the photon is given by E = hf. Einstein was able to use Planck’s ideas and apply them to both black body radiation and the photoelectric effect to formulate explanations for how and why they work. Einstein stated that light comes i ...
QUANTUM AND COULOMB EFFECTS IN NANODEVICES 1
QUANTUM AND COULOMB EFFECTS IN NANODEVICES 1

1 Basics of Semiconductor and Spin Physics
1 Basics of Semiconductor and Spin Physics

... Thus the spin–orbit interaction can be written as A(LS), the constant A depending on the electron state in an atom. This interaction results in a splitting of atomic levels (the fine structure), which strongly increases for heavy atoms.3 In semiconductors, the spin–orbit interaction depends not only ...
1 Basics of Semiconductor and Spin Physics
1 Basics of Semiconductor and Spin Physics

... Thus the spin–orbit interaction can be written as A(LS), the constant A depending on the electron state in an atom. This interaction results in a splitting of atomic levels (the fine structure), which strongly increases for heavy atoms.3 In semiconductors, the spin–orbit interaction depends not only ...
Particle Physics Matter, Energy, Space, Time
Particle Physics Matter, Energy, Space, Time

... detailed information • LC will study new particles one by one  reconstruct the underlying Lagrangian • Then we can move on further with an absolute confidence UCB Colloquium ...
Lecture 10 - @let@token Neutrino physics I
Lecture 10 - @let@token Neutrino physics I

(Super) Oscillator on CP (N) and Constant Magnetic Field
(Super) Oscillator on CP (N) and Constant Magnetic Field

... The harmonic oscillator plays a distinguished role in theoretical and mathematical physics, due to its overcomplete symmetry group. The wide number of hidden symmetries provides the oscillator with unique properties, e.g. closed classical trajectories, the degeneracy of the quantum-mechanical energy ...
ELECTRIC CHARGE, FORCE, AND FIELD ( )
ELECTRIC CHARGE, FORCE, AND FIELD ( )

... EVALUATE (a) Two u quarks and a d quark make a total charge of 2(2/3) − 1/3 = 1, so the proton can be constructed from the quark combination uud. (b) Two d quarks and a u quark make a total charge of 2(−1/3) + 2/3 = 0, so the neutron can be constructed from the quark combination udd. ASSESS Because ...
< 1 ... 31 32 33 34 35 36 37 38 39 ... 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