Electronic structure methods | Electronic band structures
The Peierls substitution method, named after the original work by Rudolf Peierls is a widely employed approximation for describing tightly-bound electrons in the presence of a slowly varying magnetic vector potential. In the presence of an external magnetic vector potential , the translation operators, which form the kinetic part of the Hamiltonian in the tight-binding framework, are simply and in the second quantization formulation The phases are defined as (Wikipedia).
Stefan Teufel: Peierls substitution for magnetic Bloch bands
Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, b
From playlist SPECIAL 7th European congress of Mathematics Berlin 2016.
The 3 a.m. call and the 1979 NORAD Alert
Join our community of fans and supporters! https://thehistoryguyguild.locals.com/ The History Guy remembers the 3 a.m. call of the 1979 NORAD alert at Cheyenne Mountain, Colorado, during the Cold War. It is history that deserves to be remembered. The History Guy uses images that are in th
From playlist March Madness 2020
Joaquim Serra: Stable phase transitions: from nonlocal to local
Abstract: The talk will review the motivations, state of the art, recent results, and open questions on four very related PDE models related to phase transitions: Allen-Cahn, Peierls-Nabarro, Minimal surfaces, and Nonlocal Minimal surfaces. We will focus on the study of stable solutions (c
From playlist Partial Differential Equations
Simplifying a complex fraction by eliminating all of the fractions with the LCD
π Learn how to simplify complex fractions. To simplify complex fractions having the addition/subtraction of more than one fractions in the numerator or/and in the denominator we first evaluate the numerator or/and the denominator separately to have one fraction in the numerator and in the
From playlist How to Simplify Complex Fractions with Binomials
Thereβs a New Form of Matter in Town: EXCITONIUM!
Physicists have finally proved the existence of a new form of matter, but the way they did it might just blow your mind. Quantum Teleportation Is Real, Here's How It Works - https://youtu.be/yb38jozeDOs Read More: Physicists excited by discovery of new form of matter, excitonium http
From playlist Elements | Seeker
H-Bomb: Us Scientists Go Ahead (1950)
Scientists all around the world in 1950, are working on the development of the atomic bomb. Experiments are performed to build the atomic bomb for mass production. Full title reads: "H-bomb: US Scientists Go Ahead". VS of Oakridge Atomic bomb laboratories in USA. VS signs of fences an
From playlist ATOMIC SCIENCE
Blast and Splash in a Cold Gas by Paul Krapivsky
DISCUSSION MEETING : STATISTICAL PHYSICS OF COMPLEX SYSTEMS ORGANIZERS : Sumedha (NISER, India), Abhishek Dhar (ICTS-TIFR, India), Satya Majumdar (University of Paris-Saclay, France), R Rajesh (IMSc, India), Sanjib Sabhapandit (RRI, India) and Tridib Sadhu (TIFR, India) DATE : 19 December
From playlist Statistical Physics of Complex Systems - 2022
Going Nuclear - The Science Of Nuclear Weapons - Part 1 - Just a Theory
Going Nuclear is a multi part series where I go into detail on how nuclear weapons work, looking deep at the science and explaining how some curious discoveries in the early 20th century lead to the most powerful weapons ever used in war, and how those were tuned and evolved into the small
From playlist What Fraser's watching
Finding the quotient of two mixed numbers
π Learn how to divide mixed numbers. To divide mixed numbers, we first convert the mixed numbers to improper fractions. After we have converted the mixed numbers to improper fractions, we can then multiply the first fraction by the reciprocal of the second fraction. (The reciprocal of a fr
From playlist How to Multiply and Divide Fractions
Adding two fractions with the same denominator
π Learn how to add or subtract fractions with common denominators. When adding or subtracting two or more fractions with common denominators, we add or subtract only the numerator while we keep the denominator the same. We will then simplify our answer by reducing the fraction if necessar
From playlist Add and Subtract Fractions with Like Denominators
Talk Jani Lukkarinen: Kinetic theory of lattice waves
The lecture was held within the of the Hausdorff Trimester Program: Kinetic Theory Abstract: We consider kinetic theory of weakly interacting waves, with the discrete nonlinear Schr¨odinger equation serving as the main example. For random initial data in which field values have a spatial
From playlist Summer School: Trails in kinetic theory: foundational aspects and numerical methods
Adding improper fractions with like denominators - learn math online
π Learn how to add or subtract fractions with common denominators. When adding or subtracting two or more fractions with common denominators, we add or subtract only the numerator while we keep the denominator the same. We will then simplify our answer by reducing the fraction if necessar
From playlist Add and Subtract Fractions with Like Denominators
Fraction misconception adding the numerator and the denominator
π Learn how to add or subtract fractions with common denominators. When adding or subtracting two or more fractions with common denominators, we add or subtract only the numerator while we keep the denominator the same. We will then simplify our answer by reducing the fraction if necessar
From playlist Add and Subtract Fractions with Like Denominators
Simplify a complex fraction by multiplying the numerator and denominator by the LCD
π Learn how to simplify complex fractions. To simplify complex fractions having the addition/subtraction of more than one fractions in the numerator or/and in the denominator we first evaluate the numerator or/and the denominator separately to have one fraction in the numerator and in the
From playlist How to Simplify Complex Fractions with Binomials
Adding fractions with like denominators - math homework answers
π Learn how to add or subtract fractions with common denominators. When adding or subtracting two or more fractions with common denominators, we add or subtract only the numerator while we keep the denominator the same. We will then simplify our answer by reducing the fraction if necessar
From playlist Add and Subtract Fractions with Like Denominators
Percolation: a Mathematical Phase Transition
βββββSOURCESββββββββββββββββββββββββ Percolation β BΓ©la BollobΓ‘s and Oliver Riordan Cambridge University Press, New York, 2006. Sixty Years of Percolation β Hugo Duminil-Copin https://www.ihes.fr/~duminil/publi/2018ICM.pdf Percolation β Geoffrey Grimmett volume 321 of Grundlehren der Ma
From playlist Prob and Stats
How to multiply two mixed numbers by each other with unlike denominators
π Learn how to multiply mixed numbers. To multiply mixed numbers, we first convert the mixed numbers to improper fractions and then multiply the resulting mixed numbers by multiplying the numerator by the numerator and the denominator by the denominator. You can then convert back the resul
From playlist How to Multiply and Divide Fractions
Simplify a Complex Fraction and label restrictions
π Learn how to simplify complex fractions. To simplify complex fractions having the addition/subtraction of more than one fractions in the numerator or/and in the denominator we first evaluate the numerator or/and the denominator separately to have one fraction in the numerator and in the
From playlist How to Simplify Complex Fractions with Binomials
How to determine the quotient between two mixed numbers
π Learn how to divide mixed numbers. To divide mixed numbers, we first convert the mixed numbers to improper fractions. After we have converted the mixed numbers to improper fractions, we can then multiply the first fraction by the reciprocal of the second fraction. (The reciprocal of a fr
From playlist How to Multiply and Divide Fractions
Why Is The Universe Out Of Balance?
Claim your SPECIAL OFFER for MagellanTV here: https://try.magellantv.com/historyoftheuniverse. Start your free trial TODAY so you can watch Solar Superstorms 4K, and the rest of MagellanTVβs science collection: https://www.magellantv.com/video/solar-superstorms-4k -------------------------
From playlist The Entire History of the Universe