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e3353d8cbff5982d | Walter H. Schottky
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Walter H. Schottky
Walter Hermann Schottky (1886-1976).jpg
Born 23 July 1886 (1886-07-23)
Zürich, Switzerland
Died 4 March 1976 (1976-03-05)
Pretzfeld, West Germany
Residence Germany
Nationality German
Fields Physicist
Institutions Un... |
3df3fd097d84840b | Take the 2-minute tour ×
In 1 dimension what is the solution of the Schrödinger equation with potential
$$ V(x) = V_r + i V_i $$
Potentials are constant.
share|improve this question
1 Answer 1
The Hamiltonian $$H=T_{\text{kin}}+V_r+iV_i$$ will not be Hermitian as $$(iV_i)^*=-iV_i.$$
Technically, you can make an ... |
d55ddbb9acc25caf | Citation for this page in APA citation style. Close
Core Concepts
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Positron states in materials: density functional and quantum monte carlo studies
Positron states in materials: density functional and quantum monte carlo studies
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electron and positron states and annihilation characteristics in materials in order
to support the exp... |
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[In] a few minutes I shall be all melted... I have been wicked in my day, but I never thought a little girl like you would ever be able to melt me and end my wicked deeds. Look o... |
654e4961a98aac09 | The Most Important Equation In The Universe
An illustration of our cosmic history, from the Big Bang until the present, within the context of the expanding Universe. The first Friedmann equation describes all of these epochs, from inflation to the Big Bang to the present and far into the future, perfectly accurately, ... |
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Chemistry LibreTexts
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• Lecture 1: The Rise of Quantum Mechanics
Classical mechanics is unable to explain certain phenomena observed in nature including the emission of blackbody radiators that is sensitive to the temperature of the radiator. This distribution follow's Planck... |
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ef61d4b3a7cd755e | How Do Quantum Computers Work?
By: | May 28th, 2019
How Do Quantum Computers Work
Image by Gerd Altmann from Pixabay
Understanding Data Computing in Classical Computers
Have you ever wondered how letters and words gets stored and processed on your desktop, smartphone, laptop and hard drive? Do we really understand... |
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ac6c540a0c34f212 | The energy and 1/2 factor in Schrödinger’s equation
Schrödinger’s equation, for a particle moving in free space (so we have no external force fields acting on it, so V = 0 and, therefore, the Vψ term disappears) is written as:
We already noted and explained the structural similarity with the ubiquitous diffusion equ... |
31634d2ea8ac8b23 | Wednesday, January 06, 2010
Is Physics Cognitively Biased?
Recently we discussed the question “What is natural?” Today, I want to expand on the key point I was making. What humans find interesting, natural, elegant, or beautiful originates in brains that developed through evolution and were shaped by sensory input re... |
0b7453fb9c1ca03f | Postulate 1. The state of a quantum mechanical system iscompletely specified by a function that depends on the coordinates ofthe particle(s) and on time. This function, called the wave functionor state function, has the important property thatisthe probability that the particle lies in the volume elementlocatedatattime... |
f1befc92c1efbcf0 | Saturday, July 26, 2014
Continuing Human Evolution: Fallacies and Prospects
Where are we going, and where do we want to go, genetically speaking?
Of all the politically correct stances, the genetic unimprovability of humanity is perhaps the most inviolable. Even while we work daily, even feverishly, to improve other... |
acfb46f6767dc4d9 | Erwin Schrödinger
Austrian physicist
Erwin Schrödinger, (born August 12, 1887, Vienna, Austria—died January 4, 1961, Vienna), Austrian theoretical physicist who contributed to the wave theory of matter and to other fundamentals of quantum mechanics. He shared the 1933 Nobel Prize for Physics with British physicist P.... |
737072490495fc3f | Monday, March 5, 2018
Thoughts on Jaynes's Breakdown of the Bicameral Mind
The book that Jaynes wrote
The book that Jaynes wrote
Tuesday, February 13, 2018
Sapience and non-sapience
DOCTOR: I knew a Galactic Federation once, lots of different lifeforms so t... |
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Darwin vs. Einstein
The current battle for America is, as Angelo Codevilla has recently emphasized in his seminal essay, a war between the majority of Americans and America’s ruling class. This conflict ... |
df7928053fe855ee | Bohr and Heisenberg plotting to take over.
The multi-dimensionality of the Schrödinger equation of stdQM defies direct interpretation of its wave functions as phenomena taking place in physical 3d space, and so to save the budding quantum mechanics from collapse an interpretation in terms of probability of electron pa... |
2983212b8c38d659 | Wednesday, July 26, 2006
My countryman in Wikipedia
I learned from a comment of anonymous to previous posting that Lubos Motl has written something to Wikipedia about finnish physicist Matti Pitkanen whom I happen to know quite well. Knowing Lubos the text could have been much more nasty and I am proud that Lubos see... |
dc54adc90ee9e37a | Kohn–Sham equations
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In physics and quantum chemistry, specifically density functional theory, the Kohn–Sham equation is the Schrödinger equation of a fictitious system (the "Kohn–Sham system") of non-interacting particles (typically electrons) that gen... |
e87c0dfb06893da9 | Erwin Schrödinger
Wikipedia se
Hian jaao: navigation, khojo
This person is a Nobel prize winner
Erwin Schrödinger
Erwin Rudolf Josef Alexander Schrödinger (12 August 1887 Vienna me - 4 January 1961 Vienna me ) ek Austrian Physicist rahaa. Uu quantum mechanics ke theory ke ek founder rahaa aur uske 1933 me Nobel Prize... |
982ed74064f73c17 | Take the 2-minute tour ×
Quantum mechanics: Suppose that there is a particle with orbital angular momentum $|L|$. But the particle also has spin quantity $|S|$. The question is, how do I reflect this into Schrodinger equation? I do know how Schrodinger equation becomes for each case - when a particle has particular or... |
e9f1ac69c3c3faf6 | Discover Interview: Roger Penrose Says Physics Is Wrong, From String Theory to Quantum Mechanics
By Susan Kruglinski, Oliver Chanarin|Tuesday, October 06, 2009
Roger Penrose could easily be excused for having a big ego. A theorist whose name will be forever linked with such giants as Hawking and Einstein, Penrose ha... |
d24cf66de563f114 | Physics Friday 55
Classically, a one-dimensional harmonic oscillator is a system with a mass under a restoring force proportional to displacement from the equilibrium position: F=-kx. The energy is , and the equation of motion has solution , where.
Analogously, a one-dimensional quantum harmonic oscillator is a parti... |
d070a29b620c699b | Citation for this page in APA citation style. Close
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820fa492410a06ba | Second Quantization in Quantum Physics Means Something Different than What it is Thought to Mean
San José State University
Thayer Watkins
Silicon Valley
& Tornado Alley
Second Quantization in Quantum
Physics Means Something Different
than What it is Thought to Mean
Second Quantization is a body of physical analysi... |
63fefb39c551a656 | Interpreting the Quantum World II: What Does It Mean?
In the first installment of this series, we immersed ourselves in the quantum realm that lies beneath our everyday experience and discovered a universe that bears little resemblance to it. Instead of the solid, unambiguously well-behaved objects we’re familiar with... |
f22802218044f6c6 | Second quantized formulation of geometric phases
The level crossing problem and associated geometric terms are neatly formulated by the second quantized formulation. This formulation exhibits a hidden local gauge symmetry related to the arbitrariness of the phase choice of the complete orthonormal basis set. By using... |
cc6419f1bb5ec681 | How a wave packet travels through a quantum electronic interferometer
Together with Christoph Kreisbeck and Rafael A Molina I have contributed a blog entry to the News and Views section of the Journal of Physics describing our most recent work on Aharonov-Bohm interferometer with an imbedded quantum dot (article, arxi... |
a4d2ef8a54f43faf | Take the 2-minute tour ×
For $a$ being positive what are the quantisation conditions for an exponential potential?
$$ - \frac{d^{2}}{dx^{2}}y(x)+ ae^{|x|}y(x)=E_{n}y(x) $$ with boundary conditions $$ y(0)=0=y(\infty) $$ I believe that the energies $ E_{n} $ will be positive and real
I have read a similar paper:
P. ... |
470c09b40cef80bb | Take the 2-minute tour ×
Wheeler's delayed choice experiment is a variant of the classic double slit experiment for photons in which the detecting screen may or may not be removed after the photons had passed through the slits. If removed, there are lenses behind the screen refocusing the optics to reveal which slit t... |
766d44f5c5b11998 | Hyperspace: A Scientific Odyssey through Parallel Universes,
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Lunn at the University of Chicago had used the same argument based on the completion of the relativistic energy–momentum 4-vector to derive what w... |
5f3d2d698c43755a | Take the 2-minute tour ×
How can energy be quantized if we can have energy be measured like in 1.56364, 5.7535, 6423.654 kilo joules, with decimals? Thanks
Also isnt it quantization means energy is represented in bit quantities meaning you can not divide, lets say 1 bit of energy
share|improve this question
3 Answe... |
59bb7a03c6d1ad17 | principles of physical science
The development of quantitative science
Examples of the scientific method
It is nowadays taken for granted by scientists that every measurement is subject to error so that repetitions of apparently the same experiment give different results. In the intellectual climate of Gali... |
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The Schrödinger equation
\displaystyle i \hbar \partial_t |\psi \rangle = H |\psi\rangle
is the fundamental equation of motion for (non-relativistic) quantum mechanics, modeling both one-particle systems and {N}-particle systems for {N>1}. Remarkably, de... |
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I know how and why we use this form of stationary Schrödinger equation for finding $\psi$ outside the finite square potential well:
$$\frac{d^2 \psi}{dx^2}=\kappa^2 \psi$$
I Also know that the general solution to this equation is:... |
07fc66ead940264b | I have just started Griffiths Intro to QM. I was studying Born's interpretation of Wave function and it says that the square of the modulus of the wave function is a measure of the probability of finding the particle at that position. I didn't read further, so my doubt might be stupid. But if wave function is complex t... |
a53837d790d30c01 | The Role of Exact Conditions in TDDFT
Lucas O. Wagner Kieron Burke Department of Physics and Astronomy
and Department of Chemistry,
University of California, Irvine, CA 92697, USA
thanks: To appear in:
Time-dependent density functional theory, 2 ed.,
edited by M. Marques,
et al. (Springer, 201X).
This chapter is ... |
7fd6724ab517a7fc | Unlikely site for historic moment in physics: RDU
[John Archibald] Wheeler struggled to mend a rift in physics between general relativity and quantum mechanics—a rift called time. One day in 1965, while waiting out a layover, Wheeler asked colleague Bryce DeWitt [at UNC Chapel Hill] to keep him company for a few hours... |
8787138233a3a710 | Quantum Mechanics I (PHYS*3230)
Code and section: PHYS*3230*01
Term: Fall 2010
Instructor: Don Sullivan
Course Information
Lecturer Office Phone Email
D.E. Sullivan MacN 435A 519-824-4120 x53983 sullivan@uoguelph.ca
Course Materials
• D.J. Griffiths, Introduction to Quantum Mechanics (2nd ed.)
Assessment ... |
3e9a74dcd0710a3f | Enrico Fermi
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"Fermi" redirects here. For other uses, see Fermi (disambiguation).
Enrico Fermi
Enrico Fermi 1943-49.jpg
Enrico Fermi (1901–1954)
Born (1901-09-29)29 September 1901
Rome, Italy
Chicago, Illinois, United States
Citizenship Italy (1901–54)
U... |
bb8b6696190f16e5 | 7 Maret 2010 pukul 07:40 | Ditulis dalam Uncategorized | Tinggalkan komentar
Read description:
colorless gas with violet glow
General properties
Name, symbol, number hydrogen, H, 1
Pronunciation /ˈhaɪdrɵdʒɨn/,[1] HYE-dro-jin
Element category nonmetal
Group, period, block 1, 1, s
Standard atomic weight 1.00794(7) g·mol−... |
7319eb2208c21920 | preprint of paper appearing in the Springer volume: Singularity Hypotheses: A scientific and philosophical assessment. (2013). Eden, A, Sørake, J., Moor, JH., Steinhart, E., eds. Berlin: Springer. Also MS Word and PDF.
The Biointelligence Explosion
How recursively self-improving organic robots will modify their own
so... |
e68ca85acf0715b4 | From Wikipedia, the free encyclopedia
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Atomic-orbital-clouds spd m0.png
Hydrogen atom orbitals at different energy levels. The more opaque areas are where one is most likely to find an electron at any given time.
CompositionElementary particle[1]
Interactio... |
b4e3b7725c88b6b8 | SH1014 Modern Physics 4.0 credits
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24f38ea4b8e473bc | You Can Solve Quantum Mechanics' Classic Particle in a Box Problem With Code
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Humans have problems with quantum mechanics. We have excellent intuition about the motion of a tennis ball tossed in the air, but what about an electron trapped in a box? The tendency is to use the same tennis ba... |
c2d045a91c9468f0 | Quantum Battery
About: Thank you all for following me.
This instructable describes a way to be created a very high efficiency battery.
It is more theoretical because it requires high technologies and big investments, but I would like to share the idea with the hope that this work could be read by the proper perso... |
60276b62ae8110f8 | Page semi-protected
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Helium atom
Helium atom ground state.
An illustration of the helium atom, depicting the nucleus (pink) and the electron cloud distribution (black). The nucleus (upper right) in helium-4 is in reality spherically symmetric and... |
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4e303e3477a1b0af | 20th century in science
Science advanced dramatically during the 20th century. There were new and radical developments in the physical, life and human sciences, building on the progress made in the 19th century.[1]
In physics, the development of post-Newtonian theories such as special relativity, general relativity, ... |
05b6d0a1111ac4e3 | Materials in Electronics/Schrödinger's Equation
From Wikibooks, open books for an open world
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Schrödinger's Equation is a differential equation that describes the evolution of Ψ(x) over time. By solving the differential equation for a particular situation, the wav... |
cf8208994f9b8910 | 45: Schrodinger
Explain xkcd: It's 'cause you're dumb.
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There was no alt-text until you moused over
[edit] Explanation
This comic is a joke creating a humorously false synthesis, combining the principals of quantum superposition and the effects of reading a comic one panel at a time.
Schr... |
68080e891d81d354 | Szymon Bęczkowski's PhD dissertation
owiecc Jan 22nd, 2014 389 Never
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052e069b88086cd5 | Tuesday, 29 September 2015
On This Day in Math - September 29
Young man, if I could remember the names of these particles, I would have been a botanist.
~Enrico Fermi
The 272nd day of the year; 272 = 24·17, and is the sum of four consecutive primes (61 + 67 + 71 + 73). 272 is also a Pronic or Heteromecic number, the... |
3339dfa57e9cd631 | Take the 2-minute tour ×
Let's suppose I have a Hilbert space $K = L^2(X)$ equipped with a Hamiltonian $H$ such that the Schrödinger equation with respect to $H$ on $K$ describes some boson I'm interested in, and I want to create and annihilate a bunch of these bosons. So I construct the bosonic Fock space
$$S(K) = \... |
4abf27cb226bdd0c | Atmospheric entry
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"Reentry" redirects here. For other uses, see Reentry (disambiguation).
Mars Exploration Rover (MER) aeroshell, artistic rendition
Atmospheric entry is the movement of an object from outer space into and th... |
2fe39d5d51eb3b04 | Microlasers and ray chaos
A hitchhiker's guide to dielectric cavities*
Contents of this page:
Light's growing weight
You don't need a great deal of imagination to foresee an increasing significance of lightwave technology in data processing and telecommunications. Here are some arguments in favor of light:
Miniatur... |
bc9e2ff4eefdc1a1 | For my May 2006 diary, go here.
Diary - June 2006
John Baez
June 2, 2006
It's been a hectic 72 hours. On Wednesday I gave a colloquium at the Perimeter Institute (in Waterloo, Ontario). Later I had dinner with Fotini Markopoulou and Lee Smolin at a great restaurant called Jane Bond; we talked about quantum mechanic... |
58c591cabc79b2c8 | Take the 2-minute tour ×
Recently there have been some interesting questions on standard QM and especially on uncertainty principle and I enjoyed reviewing these basic concepts. And I came to realize I have an interesting question of my own. I guess the answer should be known but I wasn't able to resolve the problem m... |
628e09d948434f09 | Take the 2-minute tour ×
We start from an abstract state vector $ \newcommand{\ket}[1]{|{#1}\rangle} \ket{\Psi}$ as a description of a state of a system and the Schrödinger equation in the following form $$ \DeclareMathOperator{\dif}{d \!} \newcommand{\ramuno}{\mathrm{i}} \newcommand{\exponent}{\mathrm{e}} \newcommand... |
ebb84f76d1335d74 | Quantum mechanics
2007 Schools Wikipedia Selection. Related subjects: General Physics
Quantum mechanics is a fundamental branch of theoretical physics that replaces classical mechanics and classical electromagnetism at the atomic and subatomic levels. It is the underlying mathematical framework of many fields of phy... |
49a6d3d5885fe00d | Microscopic reversibility
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The principle of microscopic reversibility in physics and chemistry is twofold:
• First, it states that the microscopic detailed dynamics of particles and fields is time-reversible because the microscopic equations of motio... |
3f79cb2ea8e675c2 | Tables for
Volume B
Reciprocal space
Edited by U. Shmueli
International Tables for Crystallography (2010). Vol. B, ch. 5.2, p. 651 | 1 | 2 |
Section 5.2.12. Multislice
A. F. Moodie,a J. M. Cowleyb and P. Goodmanc
aDepartment of Applied Physics, Royal Melbourne Institute of Technology, 124 La Trobe Street, Melbour... |
ca0e1948c0105239 | Friday, June 08, 2018
Myths of Copenhagen
Discussing the Copenhagen interpretation of quantum mechanics with Adam Becker and Jim Baggott makes me think it would be worthwhile setting down how I see it. I don’t claim that this is necessarily the “right” way to look at Copenhagen (there probably isn’t a right way), and... |
d8047b096980968f | Laws and Approximations as Stages of Deduction - History...
Laws and Approximations as Deduction Steps
When the scientific concept is "put in order", it is obvious that in conceptual terms the principles precede the laws. After analyzing the nature, it is reasonable to refer to the status of laws. It is necessary to ... |
05504a19d475eeec | Wheeler–DeWitt equation
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The Wheeler–DeWitt equation[1] is a field equation. It is part of a theory that attempts to combine mathematically the ideas of quantum mechanics and general relativity, a step towards a theory of quantum gravity. In this ... |
3da31c0db8f21650 | SciELO - Scientific Electronic Library Online
vol.80 número1EditorialEducation from a post-post-foundationalist perspective and for post-post-foundationalist conditions índice de autoresíndice de assuntospesquisa de artigos
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7ea2e45a08b2e691 | Questaal Home
The Input File (CTRL)
This guide aims to detail the structure and use of the main input file (called the ctrl file) and related topics. As this guide explains, data is organized by categories, and the contents of each category is documented. A more careful description of the input file’s syntax can be f... |
b69806bb7a72bb14 | You are here
Applied Mathematics for Chemistry Majors
Rachel Neville1, Amber T. Krummel2, Nancy E. Levinger2, Patrick D. Shipman3
1 University of Arizona, Department of Mathematics, Tucson, Arizona, United States
2 Colorado State University, Department of Chemistry, Fort Collins, Colorado, United States
3 Colorado ... |
a7fb82cf3b2c52e3 | Probabilistic integrals: mathematical aspects
From Scholarpedia
Sergio Albeverio et al. (2017), Scholarpedia, 12(5):10429. doi:10.4249/scholarpedia.10429 revision #182435 [link to/cite this article]
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Post-publication activity
Curator: Zdzislaw Brzezniak
Integrals over spaces of paths or mo... |
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Lyapunov exponent - Scholarpedia
Lyapunov exponent
From Scholarpedia
Antonio Politi (2013), Scholarpedia, 8(3):2722. doi:10.4249/scholarpedia.2722 revision #137286 [link to/cite this article]
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ba1762d95d3ed5f1 | Checked content
Related subjects: Physics
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SOS Children, which runs nearly 200 sos schools in the developing world, organised this selection. Sponsoring children helps children in the developing world to learn too.
Lightning is the electric breakdown of air by strong electric fields, producin... |
b62c101d68a37ae5 | What is Real?
There’s a new popular book out this week about the interpretation of quantum mechanics, Adam Becker’s What is Real?: The Unfinished Quest for the Meaning of Quantum Physics. Ever since my high school days, the topic of quantum mechanics and what it really means has been a source of deep fascination to me... |
c74e05e9c7be096b | Paper Review: The measurement theory of Everett and de Broglie’s pilot wave
I’ve written before on this blog about quantum mechanics. We’ve looked at a questionable interpretation of a recent experiment, the way in which quantum mechanics is radically nonlocal, and certain theoretical constructs needed for the thought... |
562202529aed3268 | The Elephants in the Room – What every physicist should know about string theory
The string wars seem to still be going on, with the latest salvos coming from Ashtekar and Witten. In a very interesting recent interview, at the end Ashtekar has some comments about string theory and how it is being pursued. About claims... |
64d6ced6deeb53ed | How can I use Noether's Theorem to show that the probability density $\rho (x)=|\psi(x)|^2$ for a wave function $\psi(x)$ satisfies the continuity equation $\frac{\partial \rho}{\partial t}+\nabla \cdot\vec{j}=0$, where $\vec{j}$ is the probability current defined in quantum mechanics?
I have solved this problem befor... |
df95f9f60211daa2 | CATBox: An Interactive Course in Combinatorial Optimization by Winfried Hochstättler PDF
By Winfried Hochstättler
ISBN-10: 3540148876
ISBN-13: 9783540148876
Graph algorithms are effortless to imagine and certainly there already exists quite a few applications and courses to animate the dynamics while fixing difficu... |
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February 2019 , Volume 13 , Issue 1
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Hyperprio... |
f66d0e1d34c7f8bf | Matthew Lickiss looks back at how our drawings of chemical structures have changed over time
© iStock
The conventions used to represent chemical structures are so deeply ingrained in the understanding and teaching of chemistry that they form a language every chemist learns to communicate in. However, representation ... |
ab3da9181e4d5ad7 | I am very disappointed by my experiment on this site. Four days ago, I posted this question: Numerical simulation of the double-slit experiment including watching the electrons . After less that 24 hours, it was put [on hold] by 5 persons as being unclear. So I edited my question a first time in the hope the [on hold] ... |
03e704775446b33c | 8 July 2016
• Tunnel Visions • Statistical Methods for Data Analysis in Particle Physics • Path Integrals for Pedestrians • Books received
Tunnel Visions
By M Riordan, L Hoddeson and A W Kolb
University of Chicago Press
Also available at the CERN bookshop
The Superconducting Super Collider (SSC), a huge accelerator ... |
7b5c5a0060318544 | The molecular orbitals of $\ce{O2}$ are typically shown as follows, with every orbital filled by a spin alpha (or up) and spin beta (or down) electron (except the homo levels which are singly occupied).
O2 Molecular Orbitals
Calculations using for instance Hartree-Fock and density functional theory however produce al... |
b6e0fb5a502f1997 | Uncertainty principle
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{{#invoke:Hatnote|hatnote}} {{#invoke: Sidebar | collapsible }} In quantum mechanics, the uncertainty principle is any of a variety of mathematical inequalities asserting a fundamental limit to the precision with which certain pairs of p... |
2917f4a052f42615 | Open Access
What is a quantum simulator?
EPJ Quantum Technology20141:10
Received: 12 May 2014
Accepted: 1 July 2014
Published: 23 July 2014
Quantum simulators are devices that actively use quantum effects to answer questions about model systems and, through them, real systems. In this review we expand on this de... |
d29c6031a7639fbb | Definition of Orbital Approximation
The orbital approximation is a method of visualizing electron orbitals for chemical species that have two or more electrons.
It does this by modeling a multi-electron atom as a single-electron atom.
Multi-Electron Atom
The electron of interest feels the individual electric fields... |
2ecb2852c348e940 | In response to: “Super-Saturated Chemistry” (Vol. 2, No. 4).
To the editors:
As a chemist, and somebody who has tried to promote the philosophy of chemistry, I was delighted to see Marc Henry’s article.1 As numerous authors have emphasized, chemistry, the central science, seems to have been largely neglected by philo... |
07e188c3f15b9b33 | Dismiss Notice
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De Broglie Waves and Complex Numbers
1. Jan 5, 2008 #1
We used complex variables to describe the wave function. People do that in acoustics and optics too, strictly for convenience, because the real and imaginary parts are rudundant.
The wave function of quantum me... |
24d85974132cccb4 | Physicist, Startup Founder, Blogger, Dad
Tuesday, July 31, 2007
Algorithm wars
Some tantalizing Renaissance tidbits in this lawsuit against two former employees, both physics PhDs from MIT. Very interesting -- I think the subtleties of market making deserve further scrutiny :-)
At least they're not among the huge n... |
80cd8ec87c766661 | number theory and quantum mechanics
By far, the most active area of research linking QM and number theory is the work concerning the 'spectral interpretation' of the Riemann zeta zeros, suggesting a possible approach to the Riemann hypothesis involving quantum chaos.
The remainder of this page concerns more general c... |
25953c1cf768d0d9 | HYLE--International Journal for Philosophy of Chemistry, Vol. 11, No.2 (2005), pp. 101-126.
Copyright © 2005 by HYLE and Valentin N. Ostrovsky
HYLE Article
Towards a Philosophy of Approximations in the ‘Exact’ Sciences
Valentin N. Ostrovsky*
Abstract: The issue of approximations is mostly neglected in the philosop... |
15db3fd37a430413 | The quantum numbers and Pauli's exclusion principle
Each state as obtained as a solution of the Schrödinger equation of the hydrogen atom is characterised by a unique combination of the quantum numbers n, l, and m. We have seen that each state can be populated by up to two electrons. Even if we reduce the energy of th... |
d319ba7c8b3b591a | Open main menu
Wikipedia β
Quantum gravity (QG) is a field of theoretical physics that seeks to describe gravity according to the principles of quantum mechanics, and where quantum effects cannot be ignored,[1] such as near compact astrophysical objects where the effects of gravity are strong.
The current understand... |
837e851c7dd04676 | Friday, March 30, 2012
Jonathan Haidt is on a roll:
Consider this gem:
I would say that's true for scientific analysis too.
Anonymous said...
Um, no. If by "scientific analysis" you are referring to economics, then perhaps you are right. Real science, however, has laws that are sacred (think Newton's Law of Motio... |
11230206f778abb3 | Science and the Denial of Animal Consciousness
Mind-Matter for Animals Matters
By David Olivier and Estiva Reus
This article was written to be distributed at the International Conference on Animal Sentience organized in March 2005 by Compassion in World Farming. A poster was presented on the same theme.
This text h... |
21b394307f98a30a | Bose–Einstein condensate
From Wikipedia, the free encyclopedia
(Redirected from Bose-Einstein condensate)
Jump to: navigation, search
Schematic Bose-Einstein Condensation versus temperature and the energy diagram
A Bose–Einstein condensate (BEC) is a state of matter of a dilute gas of bosons cooled to temperatures ... |
81791696f483b228 | Take the 2-minute tour ×
(This is a simple question, with likely a rather involved answer.)
What are the primary obstacles to solve the many-body problem in quantum mechanics?
Specifically, if we have a Hamiltonian for a number of interdependent particles, why is solving for the time-independent wavefunction so hard... |
d35dadd4c28b1525 | onsdag 31 augusti 2016
Ännu Mer Undervisningstid i Matematik!
Riksdagen har sagt ja till Regeringens förslag att ytterligare utöka den totala undervisningstiden i matematik i grundskolan med 105 tim från 1020 tim till 1125 tim, detta efter att tiden ökades med 120 tim 2013. Den totala undervisningstiden i alla ämnen ... |
3c986144d6727a6d | Why I think the Foundational Research Institute should rethink its approach
by Mike Johnson
I. What is the Foundational Research Institute?
What I like about FRI:
What is FRI’s research framework?
II. Why do I worry about FRI’s research framework?
Objection 1: Motte-and-bailey
Objection 2: In... |
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