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a73c116fa8b198bb | Quantum Machine Learning: Introduction to Quantum Computation
In this guide we discuss several paradigms for quantum computing: gate-model quantum computing, adiabatic quantum computing, and quantum annealing.
3 years ago • 9 min read
By Peter Foy
In this guide we're going to discuss several paradigms for quant... |
216c6e532d497b82 | Quantum Interference Effects in Hořava-Lifshitz Gravity
Quantum Interference Effects in Hořava-Lifshitz Gravity
The relativistic quantum interference effects in the spacetime of slowly rotating object in the Hořava-Lifshitz gravity as the Sagnac effect and phase shift of interfering particle in neutron interferomete... |
9ce224ba29ca3fb2 | Quantum Zeno effect
From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
The quantum Zeno effect (also known as the Turing paradox) is a feature of quantum-mechanical systems allowing a particle's time evolution to be arrested by measuring it frequently enough with respect to some chosen measuremen... |
7d622fb0e6c52d2e | World Library
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Muffin-tin approximation
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Physics > Computational Physics
Title: Higher-order splitting algorithms for solving the nonlinear Schrödinger equation and ... |
a00cc5d873879b67 | DC and AC Josephson Effects
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The upper graphic shows a Josephson junction: two superconductors, shown in gray, separated by a thin insulating barrier, all immersed in a liquid-helium cryostat. The junction is subjected to a DC voltage a... |
d4ace050feab1220 | Quantum theory
Photo courtesy ESA/Hubble/NASA, Fillipenko, Jansen
Splitting the Universe
Hugh Everett blew up quantum mechanics with his Many-Worlds theory in the 1950s. Physics is only just catching up
Sean Carroll
Photo courtesy ESA/Hubble/NASA, Fillipenko, Jansen
Sean Carroll
is a theoretical physicist at the... |
803822777b7277b9 | Skip to main content
Normal Incident Long Wave Infrared Quantum Dash Quantum Cascade Photodetector
We demonstrate a quantum dash quantum cascade photodetector (QDash-QCD) by incorporating self-assembled InAs quantum dashes into the active region of a long wave infrared QCD. Sensitive photoresponse to normal inciden... |
afc806ddf58aa1d3 | Current Issue
Volume 34 Issue 6
Online Date:
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From Nothing to Something II: Nonlinear Systems via Consistent Correlated Bang
Sen-Yue Lou
Chin. Phys. Lett. 2017, 34 (6): 060201 . DOI: 10.1088/0256-307X/34/6/060201
Abstract PDF(pc) (390KB) ( 331 ) PDF(mobile)(395KB) ( 43 ) HTML ( 30
The C... |
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The calculation of the electronic structure of chemical systems, necessitates computationally expensive approximations to the time-independent electronic Schrödinger equation in order to yield static properties in good agreement with ... |
e6be2e38b64251db | Heat equation
In mathematics and physics, the heat equation is a certain partial differential equation. Solutions of the heat equation are sometimes known as caloric functions. The theory of the heat equation was first developed by Joseph Fourier in 1822 for the purpose of modeling how a quantity such as heat diffuses... |
205d1a8e871e5b36 | 10.1 Creating a GUI tool step by step
10.2 Further GUI design considerations
Let’s suppose we have developed a model for a system we want to study. The system could be a physical system modeled by the relevant physical laws, e.g., Newton’s second law of motion, the Schrödinger equation, Kirchoff’s circuit laws, M... |
a707605f38a31e56 | I am trying to understand the working principle of basis sets in quantum chemistry. As far as I understand in the Hartree-Fock method, the basis set is used to calculate the matrix representation of Fock operator in each iteration in the SCF procedure. Usually each basis function in a chosen basis set is represented as... |
73a04d35b509da6e | Imaginary and Complex Numbers
Let’s start with the following calculation: $-2 = (-8)^{1/3} = (-8)^{2/6} = ((-8)^2)^{1/6} = 64^{1/6} = 2$.
This must be wrong… but I don’t see why!
The brutal answer would be that you should never write $a^p$ when $a$ is negative… But, this would conceal some wonderful underlying math... |
b4faddd1668d2529 | ← Atomic Physics
Intrinsic Spin
Tuesday, March 8, 2022
Magnetic Dipole Moments
The separate components of the angular momentum vector, L\boldsymbol{\overrightarrow{L}}, and ll of an atom can be determined from the interactions between an external magnetic field and the atom's magnetic dipole moment. However, perfor... |
218dd82779df71e2 | Fundamentals and Mechanisms of Vacuum Johannes Passig1,2, Ralf Zimmermann1,2, and Thomas Fennel3
1Universität Rostock, Institut für Chemie, and Joint Centre (JMSC), Dr.-Lorenz-Weg 2, D-18059 Rostock, Germany 2Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Research Unit Comprehensive M... |
2314a7e720993d0a | My watch list
Hückel method
The Hückel method or Hückel molecular orbital method (HMO) proposed by Erich Hückel in 1930, is a very simple LCAO MO Method for the determination of energies of molecular orbitals of pi electrons in conjugated hydrocarbon systems, such as ethene, benzene and butadiene. [1] [2] It is the... |
4239dc27631428b9 | From UW-Math Wiki
Jump to navigation Jump to search
ACMS Abstracts: Spring 2022
Jacob Notbohm (UW)
Title: Collective Cell Migration: Rigidity Transition and the Eyes of the Cell
Abstract: Collective cell migration is an essential process in development, regeneration, and disease. The motion results from a physical ... |
62ef189195c41430 | The block universe is interesting, but not comforting
Click through for source and bonus red button caption at
This SMBC gets at something that’s often bothered me about the way many people talk about the block universe concept. The block universe is the idea that if the universe is fully deterministic, then its enti... |
84d5d4392ec84760 | The Unitary Gas and its Symmetry Properties
Yvan Castin and Félix Werner Yvan Castin Laboratoire Kastler Brossel, Ecole normale supérieure, CNRS and UPMC, Paris (France), 1Félix Werner Department of Physics, University of Massachusetts, Amherst (USA), 2
The physics of atomic quantum gases is currently taking advantag... |
1e366da0bec25360 | Schrödinger equation
Quantum Mechanics
Introduction: Schrödinger equation
The time evolution of a quantum system follows from the solution of the TDSE, the Time-Dependent Schrödinger Equation. For simplicity consider the TDSE describing a system that can be in no more than two states. For a quantum system that has o... |
3635165c963c8424 | Friday, June 12, 2015
Where are we on the road to quantum gravity?
1. How could the problem of time be blamed on quantization? It seems to be rooted in classical GR.
2. It seems to be rooted in the Hamiltonian formulism.
3. "how detached quantum gravity is from experiment." The only predictive gravit... |
f3fd6474da5a4197 |
Application of the Feshbach-resonance management
to a tightly confined Bose-Einstein condensate
G. Filatrella, B.A. Malomed and L. Salasnich Department of Biological and Environmental Sciences, University of Sannio, via Port’Arsa 11, 82100 Benevento, Italy
CNR-INFM, Regional Laboratory SUPERMAT, via S. Allende, 8408... |
faac20961e6caa1d | The J Curve
Thursday, March 06, 2008
The Joy of Rockets
A short talk that I gave at TED, under the apt mavericks conference theme:
So many people have contacted me since this video went up to relay how rocketry inspired them in their childhood. Rocket science is tangible.
Here are some recent rocket photos and vid... |
6c188325d0599f6b | All Issues
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Volume 34, 2014
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Volume 29, 2011
Volume 28, 2010
Volume 27, 2010
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aa423d833d1feb3c | CRC 1173
Project B3 • Frequency combs
Principal investigators
Prof. Dr. Tobias Jahnke (7/2015 - )
Prof. Dr. Christian Koos (7/2015 - )
Prof. Dr. Wolfgang Reichel (7/2015 - )
Project summary
A frequency comb is an optical signal consisting of a multitude of equidistantly spaced optical frequencies. Since thei... |
7cef1941e1ccf1cb | Wiener sausage
From Encyclopedia of Mathematics
Jump to: navigation, search
Let , , be the standard Brownian motion in (i.e. the Markov process with generator ) starting at . Let , denote its probability law and expectation on path space. The Wiener sausage with radius is the process defined by
where is the open bal... |
94fee00f46bd1dd1 | The Many Worlds Theory Today
• Posted 10.21.08
• NOVA
Half a century has passed since 27-year-old Hugh Everett III published a version of his Princeton Ph.D. dissertation in a leading physics journal, introducing the scientific world to his radical theory of parallel universes. In what ways did the theory break fr... |
2662b2904b932893 | Take the 2-minute tour ×
I was searching for the eigensolutions of the two-dimensional Schrödinger equation
$$\mathrm{i}\hbar \partial_t \mid \psi \rangle = \frac{\mathbf{p}^2}{2m_e}\mid \psi \rangle + V \mid \psi \rangle$$
where the potential is given by $$V(\rho, \varphi)=\begin{cases} V_1 & \rho < R \\ -V_2 & \rh... |
a8b84bb18877b841 | 1 Digital Solution of the Mind-Body Problem Ralph Abraham, Sisir Roy <abraham@vismath.org> (Department of Mathematics, Santa Cruz, U.S.A.)
Using the concepts of the mathematical theory of self-organizing systems in understanding the emergence of space-time at Planck scale, we proposed a digital solution of the mi... |
aa34743ffa300a3f | Email updates
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This article is part of the series Beyond Mendel: modeling in biology.
Open Access Highly Accessed Open Badges Review
Models in biology: ‘accurate descriptions of our pathetic thinking’
Jeremy Gunawardena
Author Affiliations
Department of Systems Biology, Harvard... |
c6fbbf987335d397 | Sunday, February 28, 2010
Libertarian Wack XXIV
Entropy I
Saturday, February 27, 2010
Waldman via DeLong
Robert Waldmann writes:
Review Review
I would like to see Wolfgang's review, but maybe he is too close to speak about this stuff.
Friday, February 26, 2010
A History of Violence
We humans clearl... |
cbaec10b0f4f0d6f | A8: ATOMS AND . . .
COROLLARY THEOREMS: "sooner or later, any valid theorem is going to be invalidated."
" . . . because we all know the English grammar is of German origin . . ."
The above words were written a few days ago (in 2005) by some N. American writer, somewhere on the Internet. The exact place where t... |
ef9a1b7ee56cfb0d | Take the 2-minute tour ×
I would like to know what quantization is, I mean I would like to have some elementary examples, some soft nontechnical definition, some explanation about what do mathematicians quantize?, can we quantize a function?, a set?, a theorem?, a definition?, a theory?
share|improve this question
Ug... |
b42536941ac5027c | Sunday, December 01, 2013
Elizabeth Pennisi writes about Richard Lenski's long-term evolution experiment
Let's talk about two issues in that paragraph.
Gould was mistaken
Stephen Jay Gould wrote an excellent book on the Burgess shale back in 1989 (Wonderful Life).1 The title refers to a movie with a similar name (... |
d7c91921ba2dbb4e | Symmetry, Integrability and Geometry: Methods and Applications (SIGMA)
SIGMA 7 (2011), 113, 11 pages arXiv:1112.2333
Breaking Pseudo-Rotational Symmetry through H+2 Metric Deformation in the Eckart Potential Problem
Nehemias Leija-Martinez a, David Edwin Alvarez-Castillo b and Mariana Kirchbach a
a) Institute o... |
2be2ef831aa54310 |
top 200 commentsshow all 404
[–]sheriffjbunnell 60 points61 points (20 children)
I didn't teach it for years, but I once had a full on debate with a 6 year old I was teaching, that a baby horse is a pony, I was pretty adamant that I was right, turns out it's a foal, whoops.
I was very apologetic and for the rest ... |
087cfc22698bdee5 |
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First, let me state that I'm a lot less experienced with physics than most people here. Quantum mechanics was as far as I got and that was about 9 years ago, with no use in the meantime.
A lot of people seem to think that the act o... |
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Special relativity was well established by the time the schrodinger equation came out. Using the correspondence of classical energy with frequency and momentum with wave number, this is the equation that comes out, and looks sensibl... |
454a072db0e92bad | Dismiss Notice
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Vector spaces
1. Jul 30, 2005 #1
what is the reason behind choosing the linear vector spaces in representing the state of a system? why is it convenient ? and why do we actually need a linearity ???
2. jcsd
3. Jul 30, 2005 #2
At the beginning there were the natu... |
383de0c0904d6015 | I am having trouble recognizing all the approximations that are used in computational chemistry. I would like to start an answer list (similar as to the list of resources for learning chemistry) that addresses this question.
I will try to answer this question myself. I am hoping that anyone who is knowledgeable in the... |
7dba99e281b67646 | Excited-state processes from plasma to bioimaging: Theory and applications
Excited-state processes. The two main relaxation channels of an electronically excited molecule are fluorescence and radiationless relaxation, a process in which the system relaxes to the ground state by dissipating electronic energy into heat... |
d79d2f7aa95480b3 | QM 1
Before completing this post, I need to acknowledge that my goal in writing about modern physics was to create a milieu for more talking about Western Zen. However, as I’ve proceeded, the goal has somewhat changed. I want you, as a reader, to become, if you aren’t already, a physics buff, much in the way I became ... |
c20d25a4561e0d23 | Monday, April 22, 2013
Listen to Spacetime
Quantum gravity researcher at work.
Achim calls it “a quantum version of yard sticks.”
1. Without having looked into Achim's work in detail, I wonder: how does it relate to Connes' reconstruction theorem, which proves that a Riemannian manifold can be recov... |
ff1cc77d2a69705f | I have been reading about how lasers function: A photon is used for stimulated emission of electrons from the metastable state to a lower energy state.
What I don't understand is: How can "giving" energy (in the form of photons) to electrons stimulate them to come to a lower energy state? After stimulated emission, th... |
5b2fa62c7f9acd07 | Carlo Rovelli’s Helgoland
I’ve posted a lot over the years on interpretations of quantum mechanics. My writing has tended to focus on comparing the big three: Copenhagen, pilot-wave, and many-worlds. But there are a lot of others. One that has been gaining converts among physicists and others is Carlo Rovelli’s relati... |
4353a455cd3bc255 | 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... |
dbb6053ff5d4a8b4 | Science —
Direct measurements of the wave nature of matter
New experimental techniques map out wave properties only known previously from theory.
The estimated wave function of electrons in solid nitrogen.
The heart of quantum mechanics is the wave-particle duality: matter and light possess both wave-like and parti... |
1b787286be9b8b28 | The Hartree-Fock method
From Scholarpedia
Paul-Henri Heenen and Michel R. Godefroid (2012), Scholarpedia, 7(10):10545. doi:10.4249/scholarpedia.10545 revision #129749 [link to/cite this article]
Jump to: navigation, search
Post-publication activity
Curator: Paul-Henri Heenen
The Hartree-Fock (HF) method is a variati... |
36104e5acce89d93 | Share This Article:
DOI: 10.4236/jss.2017.51001 770 Downloads 1,067 Views
1. Introduction
“Schrödinger’s Cat” is the paradox of the Austrian physicist Schrödinger in 1935 to prove the idea of a “superposition state” in quantum mechanics. In this experiment, the protagonist is a cat that is used as an exper... |
3b6e73ac62297929 | How far is it around the earth?
How far is it around the earth?
Well, if you look it up on Google the circumference of the earth is near enough to 40,000 km. So it would seem to be that the distance from Wokingham to Wokingham is 40,000km.
But this is only part of the answer. I did not ask for the shortest distance... |
7bb28c1fc32d26e5 | Bestand wählen
Lecture 10. Particles on Rings and Spheres... a Prelude to Atoms
Zitierlink des Filmsegments
Embed Code
Automatisierte Medienanalyse
Erkannte Entitäten
welcome back the chemistry 131 a last time we talked about more realistic oscillators we talked about the 12 potential we talked about the Morse pote... |
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Condensed Matter > Quantum Gases
Title:How does an interacting many-body system tunnel through a potential barrier to open ... |
33d5ed98b2f7cb6d | Wednesday, August 29, 2012
Quantum Gravity and Taxes
The other day I got caught in a conversation about the Royal Institute of Technology and how it deals with value added taxes. After the third round of explanation, I still hadn’t quite understood the Swedish tax regulations. This prompted my conversation partner to... |
452048081fd4d6d7 | 2017 Vol. 41, No. 4
Particles and fields
Chiral corrections to the 1-+ exotic meson mass
Bin Zhou, Zhi-Feng Sun, Xiang Liu, Shi-Lin Zhu
2017, 41(4): 043101. doi: 10.1088/1674-1137/41/4/043101
We first construct the effective chiral Lagrangians for the 1-+ exotic mesons. With the infrared regularization scheme, we deri... |
34b734194fc39b45 | Linear Algebra and Higher Dimensions
Nowadays, governments all try to maximize their GDPs. But if you read Estève’s article on the Human Development Index, you’ll realize that GDP is not all that matters. Too often people and organizations are judged on a single measure that makes them lose sight of the diversity of t... |
9306f51394940207 | Skip to main content
Chemistry LibreTexts
Lecture 12: Vibrational Spectroscopy of Diatomic Molecules
• Page ID
• Recap of Lecture 11
Last lecture continued the discussion of vibrations into the realm of quantum mechanics. We reviewed the classical picture of vibrations including the classical potential, bond... |
6c12391fd4b3eb20 | Guide to Vector Version (sspropv, sspropvc)
The vector version of the SSPROP solves the coupled nonlinear Schrödinger equations for propagation in a birefringent fiber. The code can model birefringence, differential group delay (PMD), polarization-dependent dispersion, and polarization dependent loss, all in the cont... |
f2e1466989e5bb25 | onsdag 10 december 2014
The Radiating Atom 7: Quantum Electro Dynamics Without Infinities?
The interaction between matter in the form of an atom and light as electro-magnetic wave is supposedly described by Quantum Electro Dynamics QED as a generalization of quantum mechanics into the "jewel of physics" according to ... |
fc77411361ea4269 | All Issues
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Volume 7, 2007
Volum... |
52ccef81188718f6 | 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... |
9cbb65814ef8bfa3 | I am reading a introduction to quantum mechanics right now. There is a part about the time evolution operator:
\begin{align*} i\hbar \partial_t \,\psi(\vec r, t) = \hat H(t)\, \psi(\vec r,t) \end{align*} is the time dependent Schrödinger-equation. If we assume that for each $\psi(\vec r, t_0)$ there is a unique soluti... |
0961021a46ee4fda | Open main menu
Wikipedia β
In physics, hidden variable theories are held by some physicists who argue that the state of a physical system, as formulated by quantum mechanics, does not give a complete description for the system; i.e., that quantum mechanics is ultimately incomplete, and that a complete theory would pr... |
d8753701ca34f878 | The 17 Equations That Changed The World
We asked Professor Stewart why he decided to do this book:
"Equations definitely CAN be dull, and they CAN seem complicated, but that's because they are often presented in a dull and complicated way. I have an advantage over school math teachers: I'm not trying to show you how... |
8a84299ecd432179 | Correspondence principle
From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
The term codifies the idea that a new theory should reproduce under some conditions the results of older well-established theories in those domains where the old theories work. This concept is somewhat different from th... |
de0354c60a0b3da2 | fredag 8 november 2013
Mathematics: Backward Magics or Forward Reason
A primitive function magically pulled out of a hat as an area under a function graph.
There are two approaches to mathematics:
1. Symbolic mathematics: magics: objects pulled out of hats.
2. Constructive mathematics: reason: o... |
7a908ae89e90ee89 | Momentum in Quantum Mechanics
For a particle in state Psi, the expectation value of x is langle xrangle=int_{-infty}^{+infty}x|Psi(x,t)|^2,dx.
langle prangle=mfrac{dlangle xrangle}{dt}=-ihbarint_{-infty}^{+infty}left(Psi^*frac{partialPsi}{partial x}right),dx.
In general, langle Q(x,p)rangle=int_{-infty}^{+infty}Psi^... |
27f9ee053ee249ee | The world's most-cited Neurosciences journals
This article is part of the Research Topic
Neurodynamics of will
Front. Integr. Neurosci., 12 October 2012 |
How quantum brain biology can rescue conscious free will
• 1Department of Anesthesiology, Center for Consciousness Studies, University of Arizona, Tucson, AZ... |
4322a9d9549adb6a | Dismiss Notice
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Why does Bohr's derivation work?
1. Dec 30, 2015 #1
Bohr assumed angular momentum was quantized as ##L=n\hbar##. But really it is quantized as ##L=\hbar \sqrt{l(l+1)}##.
What he does to derive,e.g., the Bohr radius is consider that the total energy of an electron o... |
40f5923217ed2734 | Max Tegmark on the mathematical universe
| | Conversations
Randal A. Koene portraitKnown as “Mad Max” for his unorthodox ideas and passion for adventure, his scientific interests range from precision cosmology to the ultimate nature of reality, all explored in his new popular book “Our Mathematical Universe“. He ... |
54c2941b32d5d823 | The aim of the FDMNES project is to supply to the community a user friendly code to simulate x-ray spectroscopies, linked to the real absorption (XANES, XMCD) or resonant scattering (RXD) of the synchrotron radiation. This ab initio approach, wants to eliminate all the methodological parameters. First mainly mono-elect... |
395a25727a311206 | Thursday, April 19, 2018
What is good science?
When your understanding of physics establishes that empirical infinity is a large number and that the inverse is a small number establishing the scaling system of the universe, it soon becomes impossible to securely observe what must be the foundation details.
It has be... |
f57c5ead4cde493f | PERSYS - a program for the solution near the origin of coupled channel Schrodinger equation with singular potential. The code PERSYS produces the regular solution of a system of coupled Schrödinger equations near the origin, where the potential exhibits a singularity, due to the centrifugal, spin-orbit and Coulomb comp... |
aef306369e2ce1b2 | San José State University
Thayer Watkins
Silicon Valley
& Tornado Alley
The Hartree-Fock Method for Finding
Self-Consistent Field Wave Functions
for Multi-electron Atoms
In 1926 Erwin Schrödinger published his work that provided physicists with a simple way to formulate the quantum dynamics of the electrons in an ato... |
8df49b236766b64a | Schedule Jan 13, 2012
Quantum transport on carbon nanotori in nanodevices and metamaterials - from effective models to non-equilibrium Green's function methods.
Mark A. Jack (FAMU), Mario Encinosa (FAMU), John Williamson (FAMU), Adam Byrd (FAMU), Leon W. Durivage (Winona State U)
Graphene-based allotropes such as carb... |
9480d6710fa1ec8f | How Does Light Travel?
Ever since Democritus – a Greek philosopher who lived between the 5th and 4th century’s BCE – argued that all of existence was made up of tiny indivisible atoms, scientists have been speculating as to the true nature of light. Whereas scientists ventured back and forth between the notion that li... |
cacd7e00113d5ca2 | 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... |
30cab633de83ce44 | Science and Technology links (December 26th 2020)
1. Researchers used a viral vector to manipulate eye cells genetically to improve the vision of human beings.
2. Seemingly independently, researchers have reported significant progress regarding the solution of the Schrödinger equation using deep learning: Puppin e... |
5f428f14a168c43f | Randell Mills GUT - Who can do the calculations?
• I'll let you know what Dr. Mills says. Or you can just join us at The Society For Classical Physics. Sorry if I came off as a jerk, you seem to be obviously willing to take an honest look at the theory.
Furthermore, not all parts of the theory are fully fleshed... |
fc553c6e3f088004 | Nuclear Shell Model
Get Nuclear Shell Model essential facts below. View Videos or join the Nuclear Shell Model discussion. Add Nuclear Shell Model to your PopFlock.com topic list for future reference or share this resource on social media.
Nuclear Shell Model
In nuclear physics and nuclear chemistry, the nuclear shell... |
7c3dc74a3262d6c9 | Monthly Archives: April 2018
Calculation of the 4D complex number tau.
It is about high time for a new post, now some time ago I proposed looking at those old classical equations like the heat and wave equation and compare that to the Schrödinger equation. But I spilled some food on my notes and threw it away, anyway... |
da9bc82b3b76275c | Numerical Solution to Friedmann Equation
Given an expanding universe with associated parameters that dictate how it expands, it is expected that we attempt to discuss the age of the universe and its ultimate destiny. Such calculations are unbelievably complex even for the world's largest supercomputers unless we impos... |
d4f1b49e958850ff | Read Full Transcript
Euvie: In one of our previous episodes with you we spoke about how to assess and prevent existential risks. We got a lot of positive feedback on that episode, people really loved it. I know you’ve spent a lot of time thinking about the subject since then and you’ve refined your position. I wanted ... |
ff65383d69cbbf3e | The pilot-wave dynamics of walking droplets By Daniel M. Harris & John W. M. Bush
The following video illustrates an alternativ approach to Quantum Mechanics and the wave/particle dualism.
Mainly a wave created through the resonance of an particle and an medium guides/pilots the particle based on it’s interaction os... |
f094eaab5b1bb1cc | Skip to main content
Quantum Physics in Secondary School? How Some Teachers Capture Student Interest Early
For many people, the phrase “quantum physics” evokes images of science fiction-like technology, a vaguely puzzled sensation, or perhaps just a shudder. Yet for a growing number of secondary school teachers world... |
15cc74066e7c181b | Open Access Articles- Top Results for History of chemistry
History of chemistry
File:Mendelejevs periodiska system 1871.png
The 1871 periodic table constructed by Dmitri Mendeleev. The periodic table is one of the most potent icons in science, lying at the core of chemistry and embodying the most fundamental principl... |
66872b8e785fab07 |
Shot noise in non-adiabatically driven nanoscale conductors
[ [ Institut für Physik, Universität Augsburg, Universitätsstraße 1, 86135 Augsburg, Germany
We investigate the noise properties of pump currents through molecular wires and coupled quantum dots. As a model we employ a two level system that is connected... |
a13c0fd9685c8ab4 | Title: Use basic examples to calibrate exponents
Prerequisites: Undergraduate analysis and combinatorics.
Example 1. (Elementary identities) There is a familiar identity for the sum of the first n squares:
\displaystyle 1^2 + 2^2 + 3^2 + \ldots + n^2 = ??? (1)
But imagine that one has forgotten exactly what ... |
4787c1f1dbd50c64 | crestless wave
A wave is a disturbance that propagates through space and time, usually with transference of energy. While a mechanical wave exists in a medium (which on deformation is capable of producing elastic restoring forces), waves of electromagnetic radiation (and probably gravitational radiation) can travel ... |
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Chameleon-Like Behavior of Neutrino Confirmed 191
Anonymous Apcoheur writes "Scientists from CERN and INFN of the OPERA Collaboration have announced the first direct observation of a muon neutrino turning into a tau neutrino. 'The OPERA result follows seven... |
a44e03dd07b3fe26 | Coupled cluster
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Coupled cluster (CC) is a numerical technique used for describing many-body systems. Its most common use is as one of several post-Hartree–Fock ab initio quantum chemistry methods in the field of computational chemistry. It essentially ... |
28fd1dd61eca7b5b | in English | suomeksi aboutlecturesdiscussion
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Adobe Flash plugin required for showing the slides here. Works in Linux, Mac and Windows. You can also download... |
cc4a1e0959517b19 | Schrödinger equation
Alternative Title: Schrödinger wave equation
Schrödinger equation, the fundamental equation of the science of submicroscopic phenomena known as quantum mechanics. The equation, developed (1926) by the Austrian physicist Erwin Schrödinger, has the same central importance to quantum mechanics as Ne... |
71ba0e91ddd8beea |
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Consider this penny on my desc. It is a particular piece of metal, well described by statistical mechanics, which assigns to it a state, namely the density matrix $\rho_0=\frac{1}{Z}e^{-\beta H}$ (in the simplest model). This is an ... |
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I am an electronics and communication engineer, specializing in signal processing. I have some touch with the mathematics concerning communication systems and also with signal processing. I want to utilize this knowledge to study and understand Quantum Mechanics from the perspective of an engineer. I am not ... |
1fc2b54732cf3da5 | Take the 2-minute tour ×
Could someone experienced in the field tell me what the minimal math knowledge one must obtain in order to grasp the introductory Quantum Mechanics book/course?
I do have math knowledge but I must say, currently, kind of a poor one. I did a basic introductory course in Calculus, Linear algebr... |
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Surviving and Thriving in the AP* Chemistry Curriculum, Part 2
Adrian Dingle
Chemistry Teacher and Author
Click here to read "Surviving and Thriving in the AP* Chemistry Curriculum, Part 1."
Math is not my strong point. Frankly, that puts me in good company with a... |
642bed2cfb733f56 | Saturday, March 25, 2017 ... Français/Deutsch/Español/Česky/Japanese/Related posts from blogosphere
An isolated standard model contradicts nothing we know
Today, the Moriond 2017 particle physics conference ends. Especially the CMS has presented the newest results – analyses of some 35 inverse femtobarns of the data ... |
95bcd729c8c82033 | Eigenvalues and eigenvectors
From Wikipedia, the free encyclopedia - View original article
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In this shear mapping the red arrow changes direction but the blue arrow does not. The blue arrow is an eigenvector of this shear mapping, a... |
9b40e8cb98471bf3 | Professor (b. 1968)
B.S., 1989, Calvin College; Ph.D., 1994, University of California at Los Angeles
President's Postdoctoral Fellow, 1994; Fulbright Junior Researcher, 1995; NSF CAREER Award, 1998; Research Corporation Innovation Award, 1998; Alfred P. Sloan Research Fellow, 1999; Beckman Young Investigator, 1999; Pac... |
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