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2cd360bce11513b8 | path integral
Quantum field theory
physics, mathematical physics, philosophy of physics
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theory (physics), model (physics)
experiment, measurement, computable physics
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The notion of path integral origina... |
e143bb2224df9689 | Tag Archives: composite
The meaning of the word “superposition”
This is from the Wikipedia article on Hilbert's 13th Problem as it was on 31 March 2012:
In their paper A relation between multidimensional data compression and Hilbert’s 13th problem, Masahiro Yamada and Shigeo Akashi describe an example of Arnold's... |
d46b6da0ebf5b510 | From Wikipedia, the free encyclopedia
(Redirected from Solitons)
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For other uses, see Soliton (disambiguation).
Solitary wave in a laboratory wave channel
The soliton phenomenon was first described in 1834 by John Scott Russell (1808–1882) who observed a solitary wave in the Union Canal i... |
2e6ff297b21340f5 | Hartree–Fock method
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In computational physics and chemistry, the Hartree–Fock (HF) method is a method of approximation for the determination of the wave function and the energy of a quantum many-body system in a stationary state.
The Hartree–Fock metho... |
0807a9f7fc70011c | Take the 2-minute tour ×
Sometimes (often?) a structure depending on several parameters turns out to be symmetric w.r.t. interchanging two of the parameters, even though the definition gives a priori no clue of that symmetry.
As an example, I'm thinking of the Littlewood–Richardson coefficients: If defined by the ske... |
dd047ccc29ae58b4 | Take the 2-minute tour ×
Electrons in an atom have quantized energy quantity. Can uncertainty principle be applied in this case, then?
How does this work?
As energy is fixed, this seems to disobey $\Delta E \Delta t \geq \hbar/2$...
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Wavepackets [k-space to z-space]
1. Jan 10, 2007 #1
Hi, this type of question has been confusing my slightly as of late, an a pointer in the right direction would be greatly appreciated
The wavefunction associated with a Gaussian wavepacket prop... |
a5faac878358def2 | Course Description
From 15th ISeminar 2011/12 Operator Semigroups for Numerical Analysis
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The course concentrates on the numerical solution of initial value problems of the type
u′(t) = Au(t) + f(t), \quad t \ge 0,
u(0) = u_0 \in D(A),
where A is a linear operator with dense domain of de... |
3f84a6387a595789 | Quantum mechanical: Wikis
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Quantum mechanics
Uncertainty principle
Introduction · Mathematical formulation
Fig. 1: Probability densities corresponding to the wavefunctions of an electron in a hydrogen atom possessing definite energy le... |
7d28127261a446c8 | This is a good article. Click here for more information.
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Calculation results
Addition (+)
Subtraction (−)
Multiplication (×)
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nth root (√)
Logarithm (log)
In that case, bn is called the n-th power of b, or b raised to the pow... |
883f2b36a05d40ac | 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... |
12036919f553ed6a | About Rationally Speaking
Wednesday, May 22, 2013
Rationally Speaking podcast: Sean Carroll on philosophical naturalism
References: Moving Naturalism Forward workshop.
1. I was somewhat surprised Massimo didn't blog about that Philosopher survey. It did seem to indicate that philosophers don't converge as o... |
c04e96a93e59b318 | Psychology Wiki
Quantum chemistry
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This article is a historical introduction to the theoretical concepts of quantum chemistry. For information on computational methods in chemistry and more recent and/or technical aspects of quantum chemistry, see computational chemistry. For theoretical conce... |
ee603c32ca865266 | Take the 2-minute tour ×
As far as I can check, the adiabatic theorem in quantum mechanics can be proven exactly when there is no crossing between (pseudo-)time-evolved energy levels. To be a little bit more explicit, one describes a system using the Hamiltonian $H\left(s\right)$ verifying $H\left(s=0\right)=H_{0}$ an... |
46e8cff929988f73 | Cover image for Q is for quantum : an encyclopedia of particle physics
Q is for quantum : an encyclopedia of particle physics
Gribbin, John, 1946-
Personal Author:
Publication Information:
New York, NY : Free Press, [1998]
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545 pages : illustrations ; 25 cm
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c896c5ab9e63d4ba | WikiJournal of Science/A card game for Bell's theorem and its loopholes
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b2dcef4909d5a38d | Consciousness Studies/Measurement In Quantum Physics And The Preferred Basis Problem
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The Measurement Problem[edit]
In quantum physics the probability of an event is deduced by taking the square of the amplitude for an event to happen. The... |
c301eb55d264c719 | Whirlpool, a maelstrom of emotion disambiguation et Y'becca
Aller en bas
Whirlpool, a maelstrom of emotion disambiguation et Y'becca
Message par yanis la chouette le Jeu 27 Avr - 18:49
A maelstrom is a powerful whirlpool.
Definition of maelstrom
tried to shoot the canoe across a stretch of treacherous maelstrom —... |
5865f2d06e2f0b13 | Lewis Theory
Most chemistry is taught in terms of Lewis theory
Most chemistry is learned in terms of Lewis theory
Most chemistry understood in terms of Lewis theory
Most chemists think in terms of Lewis theory most of the time
So, what is Lewis theory?
Electrons dance to a subtle & beautiful quantum mechanical tune,... |
b58399fcea751c30 | Shattered Symmetry
In 2013 the first author presented his PhD at the KU Leuven with the title Symmetry and Symmetry Breaking in the Periodic Table - Towards a Group-Theoretical Classification of the Chemical Elements. The structure of the Mendeleev table is explained with an elementary particle approach and elementary... |
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... |
97bc0d89a804bfbb | tisdag 16 maj 2017
realQM Excited States
I have updated realQM with a section on
Classical vs Quantum Physics According to Lubos
lördag 6 maj 2017
Schrödinger: Do Electrons Think?
What do you think?
fredag 5 maj 2017
New Web Site: Real Quantum Mechanics
onsdag 3 maj 2017
Programmering i Mat... |
7aff9e19056372a1 | The Feynman Lectures on Physics
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The Feynman Lectures on Physics
The Feynman Lectures on Physics.jpg
The Feynman Lectures on Physics including Feynman's Tips on Physics: The Definitive and Extended Edition (2nd edition, 2005)
Author Richard P. Feynman, R... |
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Imagine you're teaching a first course on quantum mechanics in which your students are well-versed in classical mechanics, but have never seen any quantum before. How would you motivate the subject and convince your students that in... |
357c23c22ff6843c | Sunday, November 08, 2009
Google can render your equations for you!
In my last post I mentioned that Knol and Google Docs now have equation editing. What I didn't mention is that this is an undocumented feature of the public Google Chart api, and it's easy to use. For instance, if I wanted to include the Schrödinger ... |
0425ff29cb40d6ea | @article{399, abstract = {Following an earlier calculation in 3D, we calculate the 2D critical temperature of a dilute, translation-invariant Bose gas using a variational formulation of the Bogoliubov approximation introduced by Critchley and Solomon in 1976. This provides the first analytical calculation of the Koster... |
b5717ef0a5418a03 | Future of solitons
Th 70305
The move to higher transmission speeds has opened the door to solitons. Here's an overview of the technology.
Solitons are light pulses that can propagate in a non-linear dispersive medium with no broadening over very long distances. As a result, they have attracted great interest in the... |
c1277eba9b8e3269 | Monday, February 28, 2005
Dark Matter and Living Matter
Dark matter and living matter represent two deep mysteries of the recent world view. There however exists an amazing possibility that there might be close connection between these mysteries.
Do Bohr rules apply to astrophysical systems?
D. Da Rocha and Laurent... |
1773b24552111e94 | Thursday, May 10, 2012
A Universe from Nothing
The book A Universe from Nothing: Why There Is Something Rather than Nothing by Lawrence Krauss has stimulated a lot of aggressive debate between Krauss and some philosphers and of course helped in gaining media attention.
Peter Woit wrote about the debate - not so much... |
59a43cf32c7dd56a | Skip to main content
Origin of the blueshift of photoluminescence in a type-II heterostructure
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Blueshifts of luminescence observed in type-II heterostructures are quantitatively examined in terms of a self-consistent approach including excitonic effects. This analysis shows that... |
c5bf47578c36e314 | Polymer physics
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Polymer physics is the field of physics that studies polymers, their fluctuations, mechanical properties, as well as the kinetics of reactions involving degradation and polymerisation of polymers and monomers respectively.[1][2][3][4]
... |
77ac4c1c5b7aad56 | About this Journal Submit a Manuscript Table of Contents
ISRN Optics
Volume 2013 (2013), Article ID 783865, 51 pages
Review Article
Universal Dynamical Control of Open Quantum Systems
Weizmann Institute of Science, 76100 Rehovot, Israel
Received 25 March 2013; Accepted 24 April 2013
Academic Editors: M. D. Hoogerla... |
adb0e671ff5c6df9 |
The Physics Behind Schrödinger's Cat Paradox
Google honors the physicist today with a Doodle. We explain the science behind his famous paradox.
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Erwin Schrödinger, one of the fathers of quantum mechanics, is famed for a number of important contributions to physics, especially the Schrödinger equation, f... |
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Very basic questions - Hamiltonian
1. Jun 26, 2008 #1
After several failures in the past (why does the universe have to be so complicated?!), I'm once again trying to learn to understand the basics of QM, out of sheer frustration with not knowing what the heck physicist... |
cde6123b10b9ec6e | Normal mode
From Wikipedia, the free encyclopedia
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For other types of mode, see Mode (disambiguation).
A flash photo of cup of black coffee vibrating in normal modes
Mode numbers[edit]
A mode of vibration is characterized by a modal frequency and a mode shape. It is numbered according ... |
dc13cee87a148074 | The free particle: probability current
Required math: calculus
Required physics: Schrödinger equation
Reference: Griffiths, David J. (2005), Introduction to Quantum Mechanics, 2nd Edition; Pearson Education – Problem 2.19.
The rate of change of probability of a particle in a given range of {x} can be written as the... |
9487777d3832a6de | Paper using analogy between atomic and planetary spin-orbit coupling
Posted: August 22, 2016 by tallbloke in Astrophysics, solar system dynamics
On researchgate, I found this interesting paper by I.A. Arbab which proposes an explanation of planetary spin rates by leveraging an analogy with the electron spin-orbit cou... |
693ac173b2c820b9 | Take the 2-minute tour ×
The quantum-mechanical motion problem of an electron in electric field of the nucleus is well known. The quantum-mechanical description of electron motion in a magnetic field is also not difficult, since it needs to solve the Schrödinger equation of the form: $$\frac{(\hat p + eA)^2} {2m} \psi... |
50ed8311fc1a3e99 | Open Access Nano Express
Ab initio calculation of valley splitting in monolayer δ-doped phosphorus in silicon
Daniel W Drumm12*, Akin Budi12, Manolo C Per23, Salvy P Russo2 and Lloyd C L Hollenberg1
Author Affiliations
1 School of Physics, The University of Melbourne, Parkville, Victoria 3010, Australia
2 School o... |
f4439085e8c27867 | adiabatic approximation
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An approximation used in quantum mechanics when the time dependence of parameters, such as the internuclear distance between atoms in a molecule, is slowly varying. This approximation means that the solution of the Schrödinger equation at one time goes con... |
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Quantum chemistry/physics
1. Oct 21, 2008 #1
Hi all.
This post is about quantum chemistry, but my question arises when looking at the problem from a physical point of view.
The Schrödinger equation gives us the stationary states of a system... |
ac0ee11d0bfe1088 | First published Tue Apr 5, 2016
[Editor's Note: The following new entry by John Manchak and Bryan W. Roberts replaces the former entry on this topic by the previous author.]
A supertask is a task that consists in infinitely many component steps, but which in some sense is completed in a finite amount of time. Superta... |
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Strange thought
1. Jun 29, 2006 #1
Ok, so we all know the following...
Elementary quantum mechanics is constructed by postulating the canonical commutation relation (CCR) between the coordinate of a particle and its conjugate momentum.
Quantum Field Theory, on... |
2c70d0b46289aee6 |
Entanglement (physics)
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0c31ff67d9eb7322 | Open Access
• Maxim S Zholudev1,
• Anton V Ikonnikov1Email author,
• Frederic Teppe2,
• Milan Orlita3,
• Kirill V Maremyanin1,
• Kirill E Spirin1,
• Vladimir I Gavrilenko1,
• Wojciech Knap2,
• Sergey A Dvoretskiy4 and
• Nikolay N Mihailov4
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129b9bc3a7ea208e | Psychology Wiki
Quantum logic
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Quantum physics
Quantum psychology
Schrödinger cat
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Introduction to...
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b29ab4e251077ac0 | Conical Quantum Dot
Model ID: 723
Quantum dots are nano- or microscale devices created by confining free electrons in a 3D semiconducting matrix. Those tiny islands or droplets of confined “free electrons” (those with no potential energy) present many interesting electronic properties. They are of potential importanc... |
c5f0a4b1ba14c92b | Friday , 9 December 2016
17 Equations That Changed the World
[The above, is what mathematician Ian Stewart said when asked why he came out with a book titled “In Pursuit of the Unknown: 17 Equations That Changed the World“which takes a look at the most pivotal equations of all time, and puts them in a human, rather ... |
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<p><b>Abstract</b>—The linear and nonlinear scale spaces, generated by the inherently real-valued diffusion equation, are generalized to complex diffusion processes, by incorporating the free Schrödinger equ... |
be38d86fd5949e3d | Handbook of Dynamical Systems, 1st Edition
Handbook of Dynamical Systems, 1st Edition,B. Fiedler,ISBN9780444501684
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ced94c666965b20f | Viewpoint: Searching high and low for bottomonium
• Stephen Godfrey, Ottawa-Carleton Institute for Physics, Department of Physics, Carleton University, Ottawa, Canada K1S 5B6
Physics 1, 11
The BABAR collaboration at SLAC has observed the radiative decay of an excited state of bottomonium (the bound state of a bottom... |
56354526141514fb | The Reference Frame - Latest Comments most important events in our and your superstringy Universe as seen from a conservative physicist's viewpointenMon, 28 Jul 2014 08:01:22 -0000Re: The Reference Frame: Brainwashed sheep's obsession with "villain" Vladimir Putin<p>NATO is an attractive club for the nervous countries ... |
f917bcc5eb91c6f7 | Quantum probability
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Quantum probability was developed in the 1980s as a noncommutative analog of the Kolmogorovian theory of stochastic processes[1] [2] [3] [4] [5] . One of its aims is to clarify the mathematical foundations of quantum theory and its ... |
36e8d082a11c6635 | Psychology Wiki
Quantum brain dynamics
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Quantum physics
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b8baa44ca141a848 | Sunday, November 23, 2014
Skepticism and Science
Framing a context for the value of content.
Being a skeptic is for scientist a core state, the value of skepticism is rooted in the need of science to ask questions and on having in mind that whatever model we have now to explain a phenomenon is only temporary an it c... |
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531fbe245b4618c6 | Symmetry, Integrability and Geometry: Methods and Applications (SIGMA)
SIGMA 4 (2008), 014, 7 pages arXiv:0802.0482
Symmetry Transformation in Extended Phase Space: the Harmonic Oscillator in the Husimi Representation
Samira Bahrami a and Sadolah Nasiri b
a) Department of Physics, Zanjan University, Zanjan, Ira... |
2c0a653105b86004 | March 20, 2006
Computational Chemistry advance: 100 times more accurate
James Sims of NIST and Stanley Hagstrom of IU announced a new high-precision calculation of the energy required to pull apart the two atoms in a hydrogen molecule (H2). Accurate to 1 part in 100 billion, these are the most accurate energy values ... |
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From what I understand the Dirac equation is supposed to be an improvement on the Schrödinger equation in that it is consistent with relativity theory. Yet all methods I have encountered for doing actual ab initio quantum mechanical... |
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PhysicsWorld Archive
Fortran faces the future at 50
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2. Clive Page
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December 2007
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It may come as a surprise to find out that computational physics – the discipline that today uses powerful supercomputers to crunch throug... |
e273ca21fb83a1d7 | It is susceptible to attack by many insect-pests, and more severe
It is susceptible to THZ1 price attack by many insect-pests, and more severely affected by the fruit and shoot borer (FSB). These insects effectively damage (60–70%) the crop even following the average 4.6 kg of insecticides and pesticides per hectare [... |
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Chemistry LibreTexts
Quantum Tunneling
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• Quantum tunneling is a phenomenon where particles may "tunnel through" a barrier which they have insufficient kinetic energy to overcome according to classical mechanics. Tunneling is a result of the wavelike nature of quantum particles, and ... |
7e92ac698083e745 | Work Packages Other Topics
WKB expansion for a fractional Schrödinger equation with applications to controllability
Authors: - 05 April 2018
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In [3], we develop a WKB analysis for the propagation of the solutions to the following one-dimensional nonlocal Schrödinger equation
with highly oscillatory in... |
679807f0a3b4e1ae | Spanning the gap from Schrödinger to Newton by deriving a classical force field from quantum mechanical training data for zeolites
1. Spanning the gap from Schrödinger to Newton by deriving a classical force field from quantum mechanical training data for zeolites
25237 / Model and software development
Prom... |
a2066a3894f245b5 | Who was Max Planck?
Early Life and Education:
Black Body Radiation:
Quantum Mechanics:
World War I and World War II:
Death and Legacy:
What Is Bohr’s Atomic Model?
Atomic theory has come a long way over the past few thousand years. Beginning in the 5th century BCE with Democr... |
d53a203fe302171c | Through Einstein’s equation we learn that mass can be transformed into energy, and vice versa. Albert Einstein was an absolute master of finding equations that exemplify this property. Volume IV presents the foundations of quantum physics in a simple way, with little math, using many puzzles and observations taken from... |
ed85142996e862d6 | Wavelets are proposed as appropriate analysis tool for the proposed NMEP, additionally to Fourier analysis technique. There are at least two approaches to wavelet analysis, both are addressing the somehow contradiction by itself, that a function over the one-dimensional space R can be unfolded into a function over the ... |
e43b1cf44c421e9a | Universal nature of Van der Waals forces for Coulomb systems
Elliott Lieb, Walter E. Thirring
Research output: Contribution to journalArticlepeer-review
36 Scopus citations
The nonrelativistic Schrödinger equation is supposed to yield a pairwise R-6 attractive interaction among atoms or molecules for large separat... |
ca6d32e1060059ea | Five Popular Posts Of The Month
Monday, August 17, 2020
The true mystery of quantum mechanics.
The true mystery of quantum mechanics
In all known experiments, all 100 % of them conducted to this day for about a century, all quantum objects have been revealing themselves as objects localized in space, i.e. as partic... |
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artificial boundary definition
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Chemistry LibreTexts
16.3: Classical Treatment of Nuclear Motion
• Page ID
• For all but very elementary chemical reactions (e.g., D + HH \(\rightarrow\) HD + H or F + HH \(\rightarrow\) FH + H) or scattering processes (e.g., CO (v,J) + He \(\rightarrow\) CO (v',J') + He), the above fully qua... |
cbcc87dc4f3f03a9 | Landau Genius Scale ranking of the smartest physicists ever
Landau Genius Scale ranking of the smartest physicists ever
Photo by: Photo12/Universal Images Group via Getty Images
Lev Landau (1908-1968) was one of Soviet Union's best physicists. He made contributions to nuclear theory, quantum field theory, and ... |
2587fa7e1d859c59 | Path integral formulation
From Wikipedia, the free encyclopedia
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This article is about a formulation of quantum mechanics. For integrals along a path, also known as line or contour integrals, see line integral.
This formulation has proven crucial to the subsequent development of theoretica... |
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Are there any examples of fermionic particles or quasiparticles for which the interaction potential is a globally smooth function? i.e. no singularities or branch points.
As an example, in Flügge's Practical Quantum Mechanics, prob... |
e9b9d4b8d9e57a2a | Properties of water
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"Hydrogen monoxide" redirects here. For the hoax involving the chemical name of water, see Dihydrogen monoxide hoax.
Water (H
The water molecule has this basic geometric structure
Ball-and-stick model of a water molecule
Space fillin... |
1cfbc228ba3cc64e | Dietrich ZawischaContact German version
Atomic spectra
Light emitted or absorbed by single atoms contributes only very little to the colours of our surroundings. Neon signs (or other gas discharge tubes) as used for advertising, sodium or mercury vapour lamps show atomic emission; the colours of fireworks are due to ... |
23524aeb6dc02627 | SpringerOpen Newsletter
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Received:18 July 2012
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77a0c0bc262e28f1 | Office of the Registrar
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9.9 Physics and Physical Oceanography
Physics courses are designated by PHYS.
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is a non-calculus based introduction to mechanics. This course may be completed by someone who has no physics background provided some extra effort i... |
bee3f94df18e807f | From Wikipedia, the free encyclopedia
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"SUSY" redirects here. For other uses, see Susy (disambiguation).
For the episode of the American TV series Angel, see Supersymmetry (Angel).
In particle physics, supersymmetry (SUSY) is a proposed type of spacetime symmetry that relates two basic class... |
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Some questions from readers
A Black scientist wrote to me in response to my list of white privileges:
I prefer to stay out of discussions about race for personal reasons, but in reading your most recent blog post, I keep feeling that there is an undercurrent of "class-ism" that is generally overl... |
8bbb588053db209c | Sunday, March 12, 2017
Jacques Distler vs some QFT lore
Three weeks ago, in the article titled
What's going on? Indeed, textbooks and instructors often – and, according to some measures, always – say that quantum mechanics of one particle ceases to behave well once you switch to relativity – to theories covariant... |
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Scientific Cruise Meets Perfect Storm, Inspires Extreme Wave Research 107
Posted by Unknown Lamer
from the creative-punishment-for-copyright-infringers-discovered dept.
An anonymous reader writes "The oceanographers aboard RRS Discovery were expecting the winter weather on their No... |
f30f3f70270cc1da | Quantum gravity
Quantum gravity
Quantum gravity is the field of theoretical physics attempting to unify quantum mechanics, which describes three of the fundamental forces of nature (electromagnetism, weak interaction, and strong interaction), with general relativity, the theory of the fourth fundamental force: gravit... |
f246692e6cbbe521 |
Nautilus' disillusioned ex-physicist
Bob Henderson wrote an autobiography for Nautil.Us (via CIP):
What Does Any of This Have To Do with Physics?
OK, let's start to review his memoir. In 1993, he went to Rochester's graduate school to study theoretical physics. He had read a lot about Einstein and Feynman, t... |
4379ce237c534517 | Analytic Properties of Feynman Diagrams in Quantum Field
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A fibre with a sharp change between the refractive index of the core fibre and the refractive index of the cladding is called a step index fibre. At that... |
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Lumo's attack on dBB continues
With the post Bohmians' self-confidence evaporates as soon as they're expected to calculate anything continues his attack against dBB theory. It contains, as usual, a lot of name-calling, now even pers... |
cc711a713199d71c | Wednesday, May 06, 2015
Many uses in researching quantum dots
Because nanoparticles are so small, millions of times smaller than the width of a human hair, they have "tremendous surface area," raising the possibility of using them to design materials with more efficient solar-to-electricity and solar-to-chemical ene... |
5766aa4d918b88dc | Take the 2-minute tour ×
Given a symmetric (densely defined) operator in a Hilbert space, there might be quite a lot of selfadjoint extensions to it. This might be the case for a Schrödinger operator with a "bad" potential. There is a "smallest" one (Friedrichs) and a largest one (Krein), and all others are in some se... |
a06aee3521c1fedd | Incite 1: Visualization of Electron Walkers Computed by Quantum Monte Carlo Simulation of Energy Pathways in Photosynthesis Reactions
Table of Contents
In this article, we show how the NERSC Visualization Group has worked closely with the Quantum Monte Carlo Study of Photoprotection via Carotenoids in Photosynthetic... |
9a40dd3a60954145 | Genesis of Eden
Genesis Home
The latest version of this research: Biocosmology
PDF versions:
1. Prebiotic Epoch: Cosmic Symmetry-breaking and Molecular Evolution (pdf)
2. Evolutionary Epoch: Complexity, Chaos and Complementarity (pdf)
3. Consummating Cosmology: Quantum Cosmology and the Hard Problem of the Co... |
cb251a8519f30579 | Self-polarization effects in spherical inverted core–shell quantum dot
Part of the following topical collections:
1. Focus on Optics and Bio-photonics, Photonica 2017
Single electron in spherical shell in infinite potential barrier is investigated. Schrödinger equation in effective mass approximation for this sphe... |
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Quantum Theories
T is for ... Tunnelling
This happens when quantum objects “borrow” energy in ord... |
ce64d060ae48b1eb | söndag 24 februari 2013
2nd Coming of the 2nd Law
• dK/dt = W - D
• dE/dt = - W + D
• D > = 0,
• dE + pdV = TdS = dQ
• dS > = 0,
PS2 Lubos refers to Bohr's view of physics:
24 kommentarer:
1. Exactly where is the confusion and mystery in the last link you give to the blog-post by Motl?
... |
0a704a5bddee1e8f | Imagine that we find very special 3D cameras on sale. We get a few hundred of them and give them to several groups of students for a weekend project. Each student gets a camera and just one hydrogen atom in a special box. Their task is to take as many photographs of their hydrogen atom as possible. Well, you know that ... |
5d43418fca873a64 |
All novelties of quantum mechanics are consequences of nonzero commutators
The discrimination of classical physics and quantum physics may really be described through a simple parameter, Planck's constant:\[
\hline {\rm physics}& {\rm classical} & {\rm quantum} \\
\hline {\rm value}& \hbar = 0 & \hbar\neq 0 \\
... |
0550a57b691a9bbf | You are hereFZN
Fyzikální základy nanotechnologií
Course: Physical Principles of Nanotechnology
Department/Abbreviation: KEF/BFZN
Year: 2018 2019
Guarantee: 'doc. Mgr. Jiří Tuček, Ph.D.'
Annotation: The topics cover the phenomena and properties occuring in the nanoworld.
Course review:
1. Crystal structure of s... |
4188223c3ec5bfe6 |
Univ. Paris-Saclay
Foundational questions of quantum information
April 4-5, 2012
Workshop "Foundational questions of quantum information"
Dates: April 4-5, 2012
Jointly organized by LARSIM and QuPa
Venue: Amphi Opale, 46 rue Barrault, Paris 13e
April 4
9:30-9:45 Coffee and Opening
9:45-10:45 Robert Raussendorf... |
ca3f608e69a82c72 | 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... |
9710b5df6c022d2f | In many-body theory (and quantum field theory I suppose) we often work in the grand canonical ensemble, where the number of particles in the system is only fixed on average. The density operator used to compute expectation values is
$$ \rho = \frac{e^{-\beta (H - \mu N)}}{Z_{G}} = \frac{e^{-\beta K}}{Z_{G}} $$
where ... |
56b3f2860d471a7d | Quantum math: garbage in, garbage out?
8 thoughts on “Quantum math: garbage in, garbage out?
1. In considering “line of sight” that acts as the third axis, this is considered the z-axis and the direction of propagation, as you probably know. However, I too have found the asymmetry of orbitals to be biz... |
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