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7f71487b03078982 | How Should We Model Reality?
Does machine learning justify changing our need for a glass box?
Take a look at this paper. It’s titled, “Deep learning and the Schrödinger equation”. It’s implications are really interesting; first let’s take a look at the paper’s claim.
“We have trained a deep (convolutional) neural ne... |
13609c9ecfde4b34 | Exactly solvable models of nuclei
From Scholarpedia
Piet Van Isacker and Kristiaan Heyde (2014), Scholarpedia, 9(2):31279. doi:10.4249/scholarpedia.31279 revision #143319 [link to/cite this article]
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Post-publication activity
Curator: Piet Van Isacker
Exactly solvable models have played an... |
e783d82ade94fb3d | Materials Science and Engineering/Doctoral review questions/Daily Discussion Topics/01082008
From Wikiversity
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Omnidirectional Waveguide[edit]
Dielectric Mirror[edit]
An electron microscope image of a tiny piece of dielectric mirror being cut out from a larger substrate. The periodic stru... |
d9406b0a71bdef3b | Quantum mechanical: Wikis
(Redirected to Quantum mechanics article)
From Wikipedia, the free encyclopedia
Quantum mechanics
\Delta x\, \Delta p \ge \frac{\hbar}{2}
Uncertainty principle
Introduction · Mathematical formulation
Fig. 1: Probability densities corresponding to the wavefunctions of an electron in a hyd... |
748a3aa07a50dc85 | Page semi-protected
From Wikipedia, the free encyclopedia
This article is about the scalar physical quantity. For an overview of and topical guide to energy, see Outline of energy. For other uses, see Energy (disambiguation).
"Energetic" redirects here. For other uses, see Energetic (disambiguation).
The Sun is the s... |
bae133765c95b608 | « · »
Section 11.3: Exploring the Finite Well by Changing Width
Please wait for the animation to completely load.
The animation shows position-space energy eigenfunctions for a finite square well. The half width, a, of the well can be changed with the slider as can the quantum number, n, by click-dragging in the en... |
ad50b7188d44af24 | Search FQXi
Steven Andresen: "James Have a look over these two diagrams. I drew these up quite a while..." in Alternative Models of...
Steven Andresen: "James I've just returned home from a long day of surfing, so dont have the..." in Alternative Models of...
Georgina Woodward: "Pentcho, though the speed of the sou... |
2c1efed92c173d7b | resolves into
Quantum field theory
In quantum field theory (QFT) the forces between particles are mediated by other particles. For instance, the electromagnetic force between two electrons is caused by an exchange of photons. But quantum field theory applies to all fundamental forces. Intermediate vector bosons media... |
c785921a2db50b53 | Sunday, March 12, 2017 ... Français/Deutsch/Español/Česky/Japanese/Related posts from blogosphere
Jacques Distler vs some QFT lore
Young physicists in Austin, be careful about some toxic junk in your city
Three weeks ago, in the article titled
physicist Jacques Distler of UT Austin mentioned a statement by Sasha Po... |
adca1aace724ade2 | Take the 2-minute tour ×
While studying quantum mechanics from standard textbooks I always felt some conceptual gap that was never mentioned or explained. In what follow I tried to formulate my question, please be patient with me.
For a quantum particle in an infinite potential well the stationary states are labelled... |
2e90fa00bd5682ad | Readings and Lecture Notes
Lecture notes (with blanks) are provided for each lecture. Students are expected to follow along during the lecture in order to fill in the blanks in the notes.
Readings are from the required textbook:
Buy at Amazon Atkins, Peter, and Loretta Jones. Chemical Principles: The Quest for Insig... |
815b108b2f79123f | SciELO - Scientific Electronic Library Online
vol.35 issue2ADark energy in the universe, the irreversibility of time and neutrinosDecoherent histories analysis of models without time author indexsubject indexarticles search
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f08d155168cb8184 | Ultrafast Preparation and Detection of Ring Currents in Single Atoms
Within the Bohr model, the electron travels around the nucleus on circular orbits possessing quantized orbital angular momentum associated with a ring current. In quantum mechanics this motion is reflected by the magnetic quantum number m.
If a stro... |
e4d21268677780bd | Long time asymptotics of a degenerate linear kinetic transport equation
Tomasz Komorowski
In the present article we prove an algebraic rate of decay towards the equilibrium for the solution of a non-homogeneous, linear kinetic transport equation. The estimate is of the form $C(1+t)^{-a}$ for some $a>0$. The total scatt... |
8ada2ffc456ae930 | previous up next SYLLABUS Previous: 10.1 Interactive evaluation form Up: 10 COURSE EVALUATION AND Next: Bibliograpy
10.2 Suggestions for one-week projects
The best ideas for a small one-week project stems directly from your own field; please submit a short description to the course leader and don't overestimate th... |
07aefc8f91674d76 |
Do We Understand The Chemical Bond?
Following the Alternative interpretations theme, I shall write a series of posts about the chemical bond. As to why, and I hope to suggest that there is somewhat more to the chemical bond than we now consider. I suspect the chemical bond is something almost all chemists "know" wha... |
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Matlab Finite difference numerical integration or ode45?
1. May 17, 2016 #1
I'm trying to numerically solve the time dependent Schrödinger equation and I've been told that the best approach is to numerically integrate using a finite difference method, however I don't un... |
de7f0e104ae4e609 | Will and quantum physics
Henry Stapp
Lawrence Berkeley National Laboratory, University of California, Berkeley
Attention, Intention and Will in Quantum Physics
Journal of Consciousness Studies, 6, Nos 8-9, pp. 143-64
Stapp starts by taking the view that the mind/matter problem represents a conflict between classi... |
9e43c91deee41c8b | The Sciences
Interview: 'If We Want New Revolutions, We Need New Abstract Concepts as Well'
A conversation with the noted mathematical physicist Nalini Anantharaman about the importance of fundamental research, quantum chaos and unpredictability in the Solar System.
Nalini Anantharaman is a French mathematician who ... |
5395a9a0721f5a8d | Scott Aaronson has one of the highest intelligence/pretension ratios I’ve ever encountered. I wasn’t really aware of him before last fall, when I attended a conference at New York University on an ambitious new theory of consciousness, integrated information theory. Most speakers touted IIT or tried to tease out its im... |
5a7da44205809fbb | , Volume 5, Issue 1, pp 107-122
Date: 18 Dec 2009
Aquantitative assessment of stochastic electrodynamics with spin (SEDS): Physical principles and novel applications
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Stochastic electrodynamics (SED) without s... |
5f25385d252f7288 | Properties of water
From Wikipedia, the free encyclopedia
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This article is about the physical and chemical properties of pure water. For general discussion and its distribution and importance in life, see Water. For other uses, see Water (disambiguation).
Water (H... |
e48c230d748f47ac | The derivation is obtained from Introduction to Quantum Mechanics by Griffiths
Let assume the turning point occurs at $x=0$, then the WKB solutions right and left to the turning point are:
$$ \psi=\dfrac{C}{\sqrt{|p|}}\exp{\left(-\dfrac{1}{\hbar}\left|\int_0^x pdx\right|\right)} \quad \text{for} \quad x>0, \tag{8.31a... |
49936e0d535f9cfa | Meet the 2014 recipient of the AIP Gemant Award, my own Time Lord, Sean Carroll. “Science isn't a separate kind of human endeavor, utterly different from other things that we do,” said Carroll. “It's part of what makes us human, a natural outcome of our intrinsic curiosity and urge to better understand the world.” Rela... |
1da5cb3bab10742a | Analytical Imaginary Time Propagation at a Single Point
P. Behroozi
March 24, 2008
(Submitted as coursework for Physics 372, Stanford University, Winter 2008)
The Imaginary Time Propagation Method (ITP) has long been used as a way to find ground-state wavefunctions. [1] However, if one is only interested in the gro... |
bc419ea724c48441 | Open access peer-reviewed chapter
Optical Wave Propagation in Kerr Media
By Michal Čada, Montasir Qasymeh and Jaromír Pištora
Submitted: December 6th 2011Reviewed: July 4th 2012Published: February 13th 2013
DOI: 10.5772/51293
Downloaded: 4176
1. Introduction
Optical wave propagation and interaction are import... |
c566e0ae77d480de | Why is the wave function complex? I've collected some layman explanations but they are incomplete and unsatisfactory. However in the book by Merzbacher in the initial few pages he provides an explanation that I need some help with: that the de Broglie wavelength and the wavelength of an elastic wave do not show similar... |
b5409b4aa720e74e | You are currently browsing the tag archive for the ‘Laplace-Beltrami operator’ tag.
Let {L: H \rightarrow H} be a self-adjoint operator on a finite-dimensional Hilbert space {H}. The behaviour of this operator can be completely described by the spectral theorem for finite-dimensional self-adjoint operators (i.e. Hermi... |
3679eb6694c14273 | link to homepage
Institute for Advanced Simulation (IAS)
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Simulation of quantum systems
Some fundamental questions in statistical mechanics such as under which conditions a system coupled to a reservoir equilibrates and how the canonical distribution emerges from the interaction between the sy... |
c0d5f457be514851 | Top banner
Bonding to Hydrogen
The simplest molecule, made for connection
Roald Hoffmann
My first encounter with H2 was typical for a boy in the age of chemistry sets that had some zing to them. My set, made by A. C. Gilbert Co., contained some powdered zinc. It had no acids, but it taught you to generate them fro... |
92ac90460143da8f | Network Theory (Part 29)
I’m talking about electrical circuits, but I’m interested in them as models of more general physical systems. Last time we started seeing how this works. We developed an analogy between electrical circuits and physical systems made of masses and springs, with friction:
Electronics Mechanics
c... |
586fbda3cf5cf5f5 | Q: What are complex numbers used for?
Physicist: If you’ve ever had to do square roots you’ve probably come up against the problem of taking the square root of a negative number. If you restrict your attention only to real numbers (0,1, -17, \pi, √2, …, any number you can think of), then there’s no way to take the sq... |
f09f82a9cc23c816 | Take the 2-minute tour ×
I'm still in high school, and while I can't complain about the quality of my teachers (all of them have done at least a bachelor, some a masters) I usually am cautious to believe what they say straight away. Since I'm interested quite a bit in physics, I know more about it than other subjects ... |
883f2b36a05d40ac | Ginzburg–Landau theory
From Wikipedia, the free encyclopedia
(Redirected from Ginzburg-Landau theory)
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In physics, Ginzburg–Landau theory, named after Vitaly Lazarevich Ginzburg and Lev Landau, is a mathematical physical theory used to describe superconductivity. In its initial form, it w... |
d6cba29af8723b3c | Wednesday, November 30, 2005 ... Français/Deutsch/Español/Česky/Japanese/Related posts from blogosphere
Great Chinese Firewall
Hui Chen helps us - and our Chinese friends - to circumvent the so-called Great Chinese Firewall. If you've ever heard someone in the People's Republic of China who had problems with the acce... |
656ff62e5da336cd | Researchers in the US have created the first artificial samples of graphene with electronic properties that can be controlled in a way not possible in the natural form of the material. The samples can be used to study the properties of so-called Dirac fermions, which give graphene many of its unique electronic properti... |
f0895868ccc57955 | Take the 2-minute tour ×
Usually in all the standard examples in quantum mechanics textbooks the spectrum of the position operator is continuous.
Are there (nontrivial) examples where position is quantized? or position quantization is forbidden for some fundamental reason in quantum mechanics (what is that reason?)?
... |
8a5f6d504f544e22 | You are here
From the Motion of Planets to Quantum Field Theory
The hidden symmetries of orbits, energy levels, and elementary particle interactions
By Johannes Henn Published 2015
Figure adapted from Wikipedia
In systems where the conservation is only approximate the elliptical orbits precess, meaning the orientat... |
c16c9d52942727d6 | Castles and quantum mechanics
How are castles and quantum mechanics related? One connection is rook polynomials.
The rook is the chess piece that looks like a castle, and used to be called a castle. It can move vertically or horizontally, any number of spaces.
A rook polynomial is a polynomial whose coefficients giv... |
ed4e003194cf13bc | We explore three specific approaches for speeding up the calculation of quantum time correlation functions needed for time-resolved electronic spectra. The first relies on finding a minimum set of sufficiently accurate electronic surfaces. The second increases the time step required for convergence of exact quantum sim... |
7aa779935b77a2cd | Photochemistry from First Principles and Direct Dynamics
Detailed simulation of photochemistry poses considerable challenges because quantum mechanical effects are important in determining both the electronic potential energy surfaces and the subsequent nuclear dynamics. We provide a brief overview of the ab initio m... |
2e8fea9b36312521 | %0 Journal Article %T Theoretical approach in real space to the masses of protons and neutrons %+ Laboratoire Charles Coulomb (L2C) %A Olivi-Tran, N %< avec comité de lecture %@ 2405-6014 %J Nuclear and Particle Physics Proceedings %B 23rd International Conference in Quantum Chromodynamics (QCD 20) %C Montpellier, Fran... |
e28f86f00d753e9c | EPJ D Highlight - Recipe for muon pair creation, in theory
State distributions for collision between negatively charged muons and muonic hydrogen atoms.
Creation of ephemeral muonium atoms could help measure proton size
A true-muonium only lives for two microseconds. These atoms are made up one positively and one ne... |
caa4329e0fac2da9 | Title: Use basic examples to calibrate exponents
Motivation: In the more quantitative areas of mathematics, such as analysis and combinatorics, one has to frequently keep track of a large number of exponents in one’s identities, inequalities, and estimates. For instance, if one is studying a set of N elements, then m... |
6da21c38f712ace6 | Wednesday, July 2, 2014
Carroll goes nuts with many worlds
After defending bad science philosophy, physicist Sean M. Carroll foes off the deep end with his own bad quantum philosophy, and posts Why the Many-Worlds Formulation of Quantum Mechanics Is Probably Correct:
There are other silly objections to EQM, of course... |
773aab97ddbdda14 | Struggles with the Continuum (Part 5)
QED involves just one dimensionless parameter, the fine structure constant:
This is the most accurate prediction in all of science.
Part 2: the quantum mechanics of point particles.
Part 3: classical point particles interacting wit... |
588e3f745a05a2f0 | You are currently browsing the tag archive for the ‘Svitlana Mayboroda’ tag.
Marcel Filoche, Svitlana Mayboroda, and I have just uploaded to the arXiv our preprint “The effective potential of an {M}-matrix“. This paper explores the analogue of the effective potential of Schrödinger operators {-\Delta + V} provided by ... |
041e584cbf097c11 | Dihydrogen cation
From formulasearchengine
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{{ safesubst:#invoke:Unsubst||$N=Use dmy dates |date=__DATE__ |$B= }} The hydrogen molecular ion, dihydrogen cation, or H2+, is the simplest molecular ion. It is composed of two positively charged protons and one negatively charged electron,... |
26b61693304a5965 | World Library
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Mathematical analysis
Article Id: WHEBN0000048396
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Title: Mathematical analysis
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Subject: Mathematical constant, Real analysis, Pure mathematics, Glossary of topology, List of important p... |
a98cfdaef36008eb | Part 1 Bonus Material
No-Nonsense Quantum Mechanics
• For an alternative explanation of the double-slit experiment see Surfing and the double-slit experiment by Brian Skinner.
• An especially nice video explanation of the quantum uncertainty is this one by 3Blue1Brown.
• For a deeper discussion of experimental ... |
a3b8543b0fde762f | Saturday, February 29, 2020
14 Years BackRe(Action)
[Image: Scott McLeod/Flickr]
14 years ago, I was a postdoc in Santa Barbara, in a tiny corner office where the windows wouldn't open, in a building that slightly swayed each time one of the frequent mini-earthquakes shook up California. I had just published my first... |
2682f3e2a007bc10 | @article{7490, abstract = {In plants, clathrin mediated endocytosis (CME) represents the major route for cargo internalisation from the cell surface. It has been assumed to operate in an evolutionary conserved manner as in yeast and animals. Here we report characterisation of ultrastructure, dynamics and mechanisms of ... |
5f09a21d6cf10b42 |
Research Group 3: Scientific Computing
Kollegiengebäude Mathematik (20.30)
Room 3.039
Zimmer 3.039
Englerstr. 2
Kollegiengebäude Mathematik (20.30)
76131 Karlsruhe
Karlsruher Institut für Technologie (KIT)
Fakultät für Mathematik
Institut für Angewandte und Numerische Mathematik
Arbeitsgruppe 3: Wissenschaftliches ... |
ca394747dae15923 | What is exactly non-deterministic in our universe?
What is determinism?
Bad news is…
Main question of the article
How can we tackle this question?
Where does uncertainty come from?
What is it that we’re uncertain about in our universe?
The problem is the transition
Physics models nature, it doesn... |
2af8d80a30dac5b9 | Page semi-protected
String theory
From Wikipedia, the free encyclopedia
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String theory was first studied in the late 1960s as a theory of the strong nuclear force, before being abandoned in favor of quantum chromodynamics. Subsequently, it was realized that the very properties that made ... |
425a2fef0fe1a861 | Enough stuff …
September 15, 2009
… to write about, but school keeps me busy at the moment.
Commutation Relations in Markets
September 8, 2009
To derive commutation relations in microeconomics we first have to reach sure ground. What is a minimal set of assumptions we need to derive something interesting, but sti... |
744a23dbda2dae96 | Data-driven discovery of partial differential equations
See allHide authors and affiliations
Science Advances 26 Apr 2017:
Vol. 3, no. 4, e1602614
DOI: 10.1126/sciadv.1602614
• data-driven discovery
• dynamical systems
• partial differential equations
• sparse regression
Data-driven discovery methods, w... |
42dbd2f4d5e068b4 | American Journal of Modern Physics
Volume 4, Issue 6, November 2015, Pages: 287-290
Impurity Binding Energyin Quantum Dots with Parabolic Confinement in the Presence of Electric Field
Arnold Abramov1, Zhiya Zhao1, Alexander Kostikov2
1Kuang-Chi Institute of Advance Technology, Shenzhen, China
2Donbass State Enginee... |
54d41ddac3030c89 | Jet-like tunneling from a trapped vortex
Jet-like tunneling from a trapped vortex
E. Cohen, S. Muenzel, J. Fleischer, V. Fleurov, A. Soffer Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics and Astronomy,
Tel-Aviv University, Tel-Aviv 69978 Israel.
Department of Mathematics, Rutgers University,... |
f6afa0b3f9b9ef48 | ISSN: 2320-2459
Reach Us +44-1522-440391
Study on the Capacitance between Orbitals and Atoms Modelling
Elabd AA*, El-Rabaie EM and Shalaby AAT
Faculty of Electronic Engineering, 32952 Menouf, Minoufiya University, Egypt.
*Corresponding Author:
Ali A Elabd
Faculty of Electronic Engineering, 32952 Menouf, Minoufiya ... |
d276e9b491a72833 | I have a doubt as to in which frame of reference the Schrödinger equation is written? I think it is inertial but can't reason it out.
• $\begingroup$ I don't even understand as to how the concept of frame enter into the equation as it's denotes as to how the state kets evolve in time and all the physical information... |
c161be05cb9e91a8 | I know that most methods of finding approximate solutions to PDEs scale poorly with the number of dimensions, and that Monte Carlo is used for situations that call for ~100 dimensions.
What are good methods for efficiently numerically solving PDEs in ~4-10 dimensions? 10-100?
Are there any methods besides Monte Carlo... |
e5993cf5301d8199 | Citation for this page in APA citation style. Close
Mortimer Adler
Rogers Albritton
Alexander of Aphrodisias
Samuel Alexander
William Alston
Louise Antony
Thomas Aquinas
David Armstrong
Harald Atmanspacher
Robert Audi
Alexander Bain
Mark Balaguer
Jeffrey Barrett
William Barrett
William Belsham
Henri Bergson... |
d19955b4f5763227 | Nanoelectronic Device Structures at Terahertz Frequency
M. Horák
Potential barriers of different types (rectangular, triangle, parabolic) with a dc-bias and a small ac-signal in the THz-frequency band are investigated in this paper. The height of the potential barrier is modulated by the high frequency signal. If el... |
129fa996068640b0 | Band the relationship
Modeling spatial relationships—ArcGIS Pro | ArcGIS Desktop
band the relationship
Pitfalls of a Poor Principal/Band Director Relationship: q The band director may feel he The principal may have a completely different role in mind for the band . Understanding tool parameter options, as well as es... |
434acdb318319cd4 | Optimal observability of the multi-dimensional wave and Schrödinger equations in quantum ergodic domains
Privat Y., Trélat E., Zuazua E. Optimal observability of the multi-dimensional wave and Schrödinger equations in quantum ergodic domains
Journal of the European Mathematical Society, Volume 18, Issue 5, 2016, pp. 1... |
f82afa4ab5cef1ea | The Bohr model is incomplete and has drawbacks. But one thing is a mystery to me. Why did it so successfully calculate the Rydberg series with quite good number of correct digits?
Having such a good prediction one would expect that there exists an extension or modification to it, although we may not have found it, tha... |
736ef83dcc12a365 | Posts Tagged ‘many-worlds’
WARNING: Spoilers abound!
A metaphor for the everyman
So, too, The Lego Movie.
The God of Abraham
That’s what organized religion does: it sprays us with glue.
In the movie… …is a metaphor for
A Lego person a human
The Lego world you’re in the universe you’re in
All of t... |
1f02c7c2602eec2b | Jump to ContentJump to Main Navigation
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Advances in Nonlinear Analysis
Editor-in-Chief: Radulescu, Vicentiu / Squassina, Marco
IMPACT FACTOR 2018: 6.636
CiteScore 2018: 5.03
SCImago Journal Rank (SJR) 2018: 3.215
Source Normalized Impact per Paper (SNIP) 2018: 3.225
Mathematical... |
75f3b0421aa8346c | Quantum mechanics
Wavefunctions of the electron in a hydrogen atom at different energy levels. Quantum mechanics cannot predict the exact location of a particle in space, only the probability of finding it at different locations.[1] The brighter areas represent a higher probability of finding the electron.
Quantum me... |
7807014919f6624f | For an observable $A$ and a Hamiltonian $H$, Wikipedia gives the time evolution equation for $A(t) = e^{iHt/\hbar} A e^{-iHt/\hbar}$ in the Heisenberg picture as
$$\frac{d}{dt} A(t) = \frac{i}{\hbar} [H, A] + \frac{\partial A}{\partial t}.$$
From their derivation it sure looks like $\frac{\partial A}{\partial t}$ is ... |
6918d303a0a8705b | Many-worlds interpretation
From Wikipedia, the free encyclopedia
Jump to: navigation, search
The quantum-mechanical "Schrödinger's cat" paradox according to the many-worlds interpretation. In this interpretation, every event is a branch point; the cat is both alive and dead, even before the box is opened, but the "ali... |
c80977352cf5383c | Thursday, January 27, 2011
The Right Words
I love words. I love the feel of them in my mouth, the sound of them falling on my ear, the look of them as they appear on the page. When I can’t sleep, instead of counting sheep, I count words I particularly love. My list always includes alacrity (ah-LAK-ri-tee), meaning: 1... |
b96c7d790fa4c4ef | Tuesday, March 06, 2007
Monads, Vector Spaces and Quantum Mechanics pt. II
Back from wordpress.com:
I had originally intended to write some code to simulate quantum computers and implement some quantum algorithms. I'll probably eventually do that but today I just want to look at quantum mechanics in its own right as... |
5867798fd0d4d3b8 | Chemistry 251 » Fall » Full Semester
4 Credits
Physical Chemistry I
Instructor(s): James M. Farrar
Prerequisites: Physics 113-114 or 121-122 and Math 163 or 165.
Crosslisting: CHM 441
Course Summary:
This course is an introduction to the quantum theory of matter, with particular applications to problems of chemical i... |
3b13e4d0c5f3c64a | main article image
(Yaakov Fein/University of Vienna)
In a Quantum First, Physicists Put 2,000 Atoms in Two Places at Once
5 OCT 2019
You might be familiar with the Schrödinger's cat thought experiment, where the eponymous feline in a box can be both alive or dead at the same time, often used to illustrate the multi... |
817f630fc3b7ab7b | (redirected from Mass of an electron)
Also found in: Dictionary, Thesaurus, Medical.
Related to Mass of an electron: Joule, De Broglie wavelength
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carrying a unit charge of negative electricity. Ordinary electric current is the flow ... |
7986c898d9532640 | Machine Learning in the Quantum Era
Figure source: arXiv:1910.07596
November, 2019
Machine Learning aims at automatically identifying structures and patterns in large data sets. In order to identify these patterns, algorithms often resort to standard linear algebra routines such as matrix inversion or eigenvalue d... |
8f324196add8849d | Joint Colloquium/Applied math/Analysis talk
Title: Singularity Formation in Nonlinear Derivative Schrödinger Equations
Speaker: Gideon Simpson, Drexel University
Abstract: Direct numerical simulation of an $L^2$ supercritical variant of the derivative nonlinear Schrödinger equation suggests that there is a finite ... |
9989f33e37e404da | Thursday, May 31, 2007
Overall view about construction of S-matrix
I have the feeling that the construction of S-matrix in TGD framework is now reasonably well-understood. I however realized that the chapter whose purpose was to give overall view about situation was hopelessly messy. The idea to represent all twists ... |
91a942a7032cfdbd | Skip to main content
Chemistry LibreTexts
6.2: Classical Description of the Vibration of a Diatomic Molecule
• Page ID
• A classical description of the vibration of a diatomic molecule is needed because the quantum mechanical description begins with replacing the classical energy with the Hamiltonian operator in ... |
4495bf6e0cab89d3 | We gratefully acknowledge support from
the Simons Foundation and member institutions.
New submissions
[ total of 203 entries: 1-203 ]
New submissions for Mon, 15 Aug 22
[1] arXiv:2208.05991 [pdf, ps, other]
Title: Approximation-based Threshold Optimization from Single Antenna to Massive SIMO Authentication
In a ... |
f3ce6eb346b777d4 | It seems unthinkable today
As a new lecturer, in the early 1980’s, I soon learnt that the first meeting of the 3rd year examiners was the focal point of the physics department’s year. All the academics would be there: attendance was higher than at any seminar. Because this was the meeting that mattered.
Exams were ov... |
7ffbbc20ffdd9ab8 | Topic outline
• General
About this Course
Chemical reactions underpin the production of pretty much everything in our modern world. But, what is the driving force behind reactions? Why do some reactions occur over geological time scales whilst others are so fast that we need femtosecond-pulsed lasers to ... |
4364236bfde5004b | De Broglie–Bohm theory
De Broglie–Bohm theory
The de Broglie–Bohm theory, also called the pilot-wave theory, Bohmian mechanics, and the causal interpretation, is an interpretation of quantum theory. In addition to a wavefunction on the space of all possible configurations, it also includes an actual configuration, ev... |
63e46d16516dcd4a | Collapses without measurements
• María Esther Burgos Universidad de Los Andes, Facultad de Ciencias
Transitions between Stationary States, Time Dependent Perturbation Theory, Quantum Measurements, Ambiguity and Incoherence of Orthodox Quantum Mechanics
In quantum mechanics the state vector evolves in a predic... |
808daf4c92e2bd15 | Valence bond theory
In chemistry, valence bond (VB) theory is one of the two basic theories, along with molecular orbital (MO) theory, that were developed to use the methods of quantum mechanics to explain chemical bonding. It focuses on how the atomic orbitals of the dissociated atoms combine to give individual chemi... |
5e951984f21e5978 | The Energy That Holds Things Together
Matt Strassler [April 27, 2012]
In my article on energy and mass and related issues, I focused attention on particles — which are ripples in fields — and the equation that Einstein used to relate their energy, momentum and mass. But energy arises in other places, not just through... |
f8b0ea77d63eb1bd | I know that the $\mathrm{d}_{z^2}$ orbitals are named as a result from the conversion of the angular component of the hydrogen-like wave function in terms of Cartesian coordinates, but how come we lack analogous orbitals along other axes, such as $\mathrm{d}_{x^2}$ or $\mathrm{d}_{y^2}$? My naive assumption would be du... |
fe34b0d4a7fa30bc | The Identity of Elementary Particles and Einstein’s Discovery of Quantum Statistics
In 1924, Albert Einstein received an amazing very short paper from India by Satyendra Nath Bose. Einstein must have been pleased to read the title, “Planck’s Law and the Hypothesis of Light Quanta.” It was more attention to Einstein’s ... |
e940536c64d62f9e | _id,doi,title 2609,10.1016/S0306-4522(01)00305-0,"Distribution of metabotropic glutamate receptor mGluR3 in the mouse CNS: Differential location relative to pre- and postsynaptic sites" 2611,10.1016/S0306-4522(01)00158-0,"Sympathectomies lead to transient substance P-immunoreactive sensory fibre plasticity in the rat s... |
55662243b06ecda8 | Back to Media
Is Quantum Mechanics Emerging from a Nonlinear Theory?
Dieter Schuch Austrian Academy of Sciences – Festsaal Related
Physics 04/10/2013
Theoretical physics seems to be in a kind of schizophrenic state. Many phenomena in the observable macroscopic world obey nonlinear evolution equations, whereas the ... |
bf38e82429fbd113 | David Pearce (philosopher)
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David Pearce
If we already lived in a cruelty-free world, the notion of re-introducing suffering, exploitation and creatures eating each other would seem not so much frightful as unimaginable – no more seriously conceivable than reverting to s... |
ebe7d07e4f6ff31a | A Brief Guide to the Great Equations by Robert Crease
(some reading notes)
Equations can be born from several different kinds of dissatisfactions. Some spring from a scientist’s sense that a confusing heap of experimental data can be better organized. Others arise from the feeling that a theory is too complicated and... |
864752e0acd9bb88 | JMP Vol.10 No.8 , July 2019
A Band Theory Perspective on Molecular Orbitals in Complex Oxides
In view of the growing interest in molecular orbitals (MOs) encountered in certain complex oxides, we review some of their properties from the band theory perspective and provide detailed examples based on real materials. Our... |
621d5c53cb25a0a3 | We gratefully acknowledge support from
the Simons Foundation and member institutions.
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fed333908577ccbb | You are viewing information for England. Change country or region.
The quantum world
If you're interested in the fundamental laws of modern physics and how mathematics is used to state and apply these laws, this module is for you. It surveys the physical principles, mathematical techniques and interpretation of quan... |
bf86c61e7fc1bef9 |
Source: Ryan Daws
Date: 2019-12-05
Machine learning (ML) methods reach ever deeper into quantum chemistry and materials simulation, delivering predictive models of interatomic potential energy surfaces, molecular forces, electron densities, density functionals， and molecular response properties such as polarisabi... |
06946f4450c3211b | The Neutrinos escape from black holes
By Alfonso León Guillén Gómez
Independent scientific researcher
All rights reserved
Wednesday, January 25, 2012 1:07: SafeCreative # 1201250966392
This paper is the development of my thesis proposal in Universe Today, Disqus, on November 17, 2011 ( Neutrino still breaking spe... |
9e1fbb2c594a8299 | World Library
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Cluster decay
Article Id: WHEBN0002094449
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Title: Cluster decay
Author: World Heritage Encyclopedia
Language: English
Subject: Nuclear physics, Alpha decay, Island of stability, Nuclear fission, Gamma ray
Publisher: World Heritage Encyclope... |
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