A polaron is a quasiparticle used in condensed matter physics to understand the interactions between electrons and atoms in a solid material. The polaron concept was proposed by Lev Landau in 1933 and Solomon Pekar in 1946 to describe an electron moving in a dielectric crystal where the atoms displace from their equilibrium positions to effectively screen the charge of an electron, known as a phonon cloud. This lowers the electron mobility and increases the electron's effective mass. The general concept of a polaron has been extended to describe other interactions between the electrons and ions in metals that result in a bound state, or a lowering of energy compared to the non-interacting system. Major theoretical work has focused on solving Fröhlich and Holstein Hamiltonians. This is still an active field of research to find exact numerical solutions to the case of one or two electrons in a large crystal lattice, and to study the case of many interacting electrons. Experimentally, polarons are important to the understanding of a wide variety of materials. The electron mobility in semiconductors can be greatly decreased by the formation of polarons. Organic semiconductors are also sensitive to polaronic effects, which is particularly relevant in the design of organic solar cells that effectively transport charge. Polarons are also important for interpreting the optical conductivity of these types of materials. The polaron, a fermionic quasiparticle, should not be confused with the polariton, a bosonic quasiparticle analogous to a hybridized state between a photon and an optical phonon. (Wikipedia).
Writing Equivalent Polar Coordinates Quiz
Link: https://www.geogebra.org/m/MxAvq5Yt
From playlist Trigonometry: Dynamic Interactives!
Polar Coordinates and Graphing Polar Equations
Everything we have done on the coordinate plane so far has been using rectangular coordinates. That's the x and y we are used to. But that's not the only coordinate system. We can also use polar coordinates, which graph points in terms of a radius, or distance from a pole, and theta, the a
From playlist Mathematics (All Of It)
Polar Coordinates: Dynamic Illustrator
Link: https://www.geogebra.org/m/guCcvwFP
From playlist Trigonometry: Dynamic Interactives!
Calculus 2: Polar Coordinates (1 of 38) What are Polar Coordinates?
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain what are polar coordinates and Cartesian coordinates. The Cartesian coordinates use x and y to locate a point on a plane, and the polar coordinates use r and theta to locate a point on a plane
From playlist THE "WHAT IS" PLAYLIST
Polar coordinates (KristaKingMath)
► My Polar & Parametric course: https://www.kristakingmath.com/polar-and-parametric-course Polar coordinates are an important in modeling circles, spheres, cylinders, and other figures. This introduction to polar coordinates teaches you the difference between cartesian coordinates and pol
From playlist Polar & Parametric
Marco Bernardi - Quantum mechanical calculations of electron interactions in condensed matter
Recorded 12 April 2022. Marco Bernardi of the California Institute of Technology presents "Precise quantum mechanical calculations of electron interactions and dynamics in condensed matter" at IPAM's Model Reduction in Quantum Mechanics Workshop. Learn more online at: http://www.ipam.ucla.
From playlist 2022 Model Reduction in Quantum Mechanics Workshop
Mod-06 Lec-16 Electrical Conduction in Ceramics ( Contd .)
Advanced ceramics for strategic applications by Prof. H.S. Maiti,Department of Metallurgy and Material Science,IIT Kharagpur.For more details on NPTEL visit http://nptel.ac.in
From playlist IIT Kharagpur: Advanced Ceramics for Strategic Applications | CosmoLearning.org Materials Science
Converting a linear equation to polar form
Learn how to convert between rectangular and polar equations. A rectangular equation is an equation having the variables x and y which can be graphed in the rectangular cartesian plane. A polar equation is an equation defining an algebraic curve specified by r as a function of theta on the
From playlist Convert Between Polar/Rectangular (Equations) #Polar
Polar to rectangular equation conversion
Learn how to convert between rectangular and polar equations. A rectangular equation is an equation having the variables x and y which can be graphed in the rectangular cartesian plane. A polar equation is an equation defining an algebraic curve specified by r as a function of theta on the
From playlist Convert Between Polar/Rectangular (Equations) #Polar
A One-dimensional Spin Model with Kac type Interaction, and a Continuous ...by Erwin Bolthausen
PROGRAM: TOPICS IN HIGH DIMENSIONAL PROBABILITY ORGANIZERS: Anirban Basak (ICTS-TIFR, India) and Riddhipratim Basu (ICTS-TIFR, India) DATE & TIME: 02 January 2023 to 13 January 2023 VENUE: Ramanujan Lecture Hall This program will focus on several interconnected themes in modern probab
From playlist TOPICS IN HIGH DIMENSIONAL PROBABILITY
Materialism Podcast Ep 29: Superconducting Materials
The team goes over the history of superconductors. Their uses in making mind bogglingly fast trains and how their discovery paralleled the bottles we use to keep our water cold. All framed around the new discovery of a room temperature super conductor that isn't exactly room pressure... R
From playlist Materialism Podcast
PHYS 201 | Linear Polarizers 3 - The Polarizer
Here are some details on how we characterize linear polarizers, plus a bit on what "unpolarized light" means. -----Polarization playlist - https://www.youtube.com/playlist?list=PL9_sR6Qqqcyl7a3yVcQ4lH5zEh68psVqj -----Use the channel, or take the courses at edX - https://www.edx.org/course?
From playlist PHYS 201 | Polarization
Realization of synthetic materials using light by Sylvain Ravets
Non-Hermitian Physics - PHHQP XVIII DATE: 04 June 2018 to 13 June 2018 VENUE:Ramanujan Lecture Hall, ICTS Bangalore Non-Hermitian Physics-"Pseudo-Hermitian Hamiltonians in Quantum Physics (PHHQP) XVIII" is the 18th meeting in the series that is being held over the years in Quantum Phys
From playlist Non-Hermitian Physics - PHHQP XVIII
Mod-10 Lec-25 Superconductivity (Contd.)
Advanced ceramics for strategic applications by Prof. H.S. Maiti,Department of Metallurgy and Material Science,IIT Kharagpur.For more details on NPTEL visit http://nptel.ac.in
From playlist IIT Kharagpur: Advanced Ceramics for Strategic Applications | CosmoLearning.org Materials Science
American Pickers: Petrolina Globe Perfection (Season 20) | History
Catch new episodes of American Pickers when the series returns Mon Oct 21 at 9/8c Mike picks a warehouse in Indiana and is stoked to find a stockpile of mint condition Petrolina Globes in this clip from Season 20, Episode 8, "Pick This Way." #AmericanPickers #PetrolinaGlobe #PickThisWay S
From playlist American Pickers: Season 20 | History
Matteo Gori - 2nd-Quantization of Many-Body Dispersion Formalism: Modeling of Million Atom Systems
Recorded 01 April 2022. Matteo Gori of the University of Luxembourg Department of Science and Materials presents "Second-Quantization of Many-Body Dispersion Formalism: Towards Modeling of Million Atom Systems in Arbitrary Environments" at IPAM's Multiscale Approaches in Quantum Mechanics
From playlist 2022 Multiscale Approaches in Quantum Mechanics Workshop
Rectangular to polar equation conversion
Learn how to convert between rectangular and polar equations. A rectangular equation is an equation having the variables x and y which can be graphed in the rectangular cartesian plane. A polar equation is an equation defining an algebraic curve specified by r as a function of theta on the
From playlist Convert Between Polar/Rectangular (Equations) #Polar
Feliciano Giustino - Methods and software for electron-phonon physics - IPAM at UCLA
Recorded 14 April 2022. Feliciano Giustino of the University of Texas at Austin presents "Methods and software for electron-phonon physics" at IPAM's Model Reduction in Quantum Mechanics Workshop. Learn more online at: http://www.ipam.ucla.edu/programs/workshops/workshop-ii-model-reduction
From playlist 2022 Model Reduction in Quantum Mechanics Workshop
PHYS 201 | Polarization States 1 - The Electric Field Vector
Here we introduce a mathematical way to describe polarization based on the electric field amplitude vector. c -----Use the channel, or take the courses at edX - https://www.edx.org/course?search_query=hafner+ricex -----This material was produced by Rice Online - http://online.rice.edu
From playlist PHYS 201 | Polarization