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First-Person Plural Quantum Mechanics
First-Person Plural Quantum Mechanics

Wave-Particle Duality in the Elastodynamics of the Spacetime
Wave-Particle Duality in the Elastodynamics of the Spacetime

Charged Particles
Charged Particles

... Each time you press one of these keys (or pair of keys) a field will step upward and downward through a series preprogrammed values. You may hold down a key to change the field by several steps. Decreasing a field may eventually cause it to become negative, which will reverse the field direction. A ...
The quantum spin Hall effect and topological
The quantum spin Hall effect and topological

... states require an external magnetic field, which breaks timereversal (TR) symmetry; QSH states, in contrast, are TR invariant and do not require an applied field. ...
THE MANY CLASSICAL FACES OF QUANTUM STRUCTURES 1
THE MANY CLASSICAL FACES OF QUANTUM STRUCTURES 1

... Bohr’s doctrine of classical concepts. To summarize, both classical systems and quantum systems are first-class citizens that can interact in the algebraic framework. Classical systems are commutative algebras C, and quantum systems are noncommutative ones A. An example of an interaction is measurem ...
Einstein`s Miraculous Year -RE-S-O-N-A-N-C-E--I-M-a-r-ch-.-2-0
Einstein`s Miraculous Year -RE-S-O-N-A-N-C-E--I-M-a-r-ch-.-2-0

Lower Bounds on Matrix Rigidity via a Quantum
Lower Bounds on Matrix Rigidity via a Quantum

... so one may obtain the same result classically using Lokam’s proof for (1) and our argument for (2). Either way, we feel the proof is significantly simpler than that of Kashin and Razborov [11], who show that a random a × a submatrix of H has rank Ω(a) with high probability. Our proof gives a better ...
PDF
PDF

... set of rates satisfying the bounds in (5). Second, we studied the capacity of the quantum optical MAC. For coherentstate encoding—i.e., for classical-light source transmitters—we derived the capacity regions for both single-mode and wideband operation, and compared them with corresponding results wh ...
Part 1 - Capri Spring School
Part 1 - Capri Spring School

... Scattering approach: Beenakker and Buttiker, PRB 46, 1889 (1992) Langevin approach: Nagaev, Phys. Lett. A 169, 103 (1992) Drude conductance Quantum corrections to Drude conductance (weak localization, UCF) Shot noise spectrum Quantum correction to shot noise ...
PPT
PPT

... measured with respect to a reference point (usually the ground) which we call zero ► This concept is not as useful for gravitational difference as objects have different masses, but since each charge carrier has the same charge, this concept has value for electric potential difference ...
Y-system
Y-system

...  A curious property of gl(N|M) representations with rectangular Young tableaux: ...
Electric Field
Electric Field

... Electric Field of Several Point Charges Apply the superposition principle. This principle states that the resulting electric field is the sum of all fields, without any interference of one field upon another. It is generally true for electromagnetism at least for fields that are not enormously stron ...
Magnetic Fields, Chapter 29
Magnetic Fields, Chapter 29

Physics and Faith 3
Physics and Faith 3

... - Hartle Hawking Quantum Cosmology, or the - Ekpyrotic Universe is correct, then there may a "physical"* explanation for the initial "singularity" that fills the unexplained "gap" in our physics. There may be no true "rumor" of God here, but just false "rumor," a "God of the Gaps" * it may also be t ...
annalen der - Department of Physics and astronomy, Faculty of
annalen der - Department of Physics and astronomy, Faculty of

school_ksengupta_1
school_ksengupta_1

two electron energy sprectrum in concentrical quantum ribbons
two electron energy sprectrum in concentrical quantum ribbons

... magnetic field strength meanwhile the paramagnetic field is linear. For this reason, as the magnetic field strength is small, the curves have a constant slope, being positive for M>0 and negative for M<0, and they takes a parabolic shape for large values of the magnetic field strength. These curves ...
Is Quantum Chemistry a Degenerating Research Programme?
Is Quantum Chemistry a Degenerating Research Programme?

Electric Force Solutions
Electric Force Solutions

... repel each other. From this we can conclude that1 a) 1 and 3 carry charges of opposite sign. d) one of the objects carries no charge. b) 1 and 3 carry charges of equal sign. e) none of the above. c) all three carry the charges of the same sign. ANS: A Since 1 and 2 attract, they are oppositely charg ...
First-ever Time Crystals
First-ever Time Crystals

Quantum Hall effect and the topological number in graphene
Quantum Hall effect and the topological number in graphene

... the spin degrees of freedom times number of the Dirac fermions in the Brillouin zone. Although their explanation gives the correct quantum number, their argument may be justified only in the low magnetic field limit and the logic of quantum Hall conductivity using Dirac fermions is not correct in ge ...
Quantum Hall effect in three-dimensional layered systems Yigal Meir
Quantum Hall effect in three-dimensional layered systems Yigal Meir

... out the separate transitions even for a finite number of layers. It is known that there may occur transitions between the expected adiabatic behavior to a different behavior ~as a function of, e.g., the tunneling matrix element!, even for the two-layer problem,21 and it remains to be seen if such a ...
LHCC - uniud.it
LHCC - uniud.it

ISM 08
ISM 08

... Null cosmologies: Φ = Φ(x+ ) . No nonzero contraction so the mass term vanishes i.e. m2 (Φ) = 0. Similar story for gauge theory using lightcone gauge for convenience. Suppressing many details, but briefly, cubic/quartic interaction terms: multiplied by powers of gY M = eΦ/2 , unimportant near eΦ → 0 ...
Waveguides, Resonant Cavities, Optical Fibers and
Waveguides, Resonant Cavities, Optical Fibers and

... they generate similar eigenvalues problems, with similar solutions. The benefit of such analogies is twofold. First, it could help a researcher, specialized in a specific field, to better understand a new one. For instance, they might efficiently explain the fiber-optics properties to people already fami ...
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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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