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- ...spensable tools in the theories of partial differential equations, quantum mechanics, and signal processing. The recognition of a common algebraic structure wit This is especially useful in quantum mechanics as wave functions must be square integrable over all space if a physically ...12 KB (1,859 words) - 18:01, 6 September 2015
- == Mathematical Formalism and Postulates of Quantum Mechanics == ...at developed in parallel with, and was influenced by, the needs of quantum mechanics. In brief, values of physical observables such as energy and momentum were ...27 KB (4,200 words) - 03:46, 4 December 2020
- ...For that reason the first image in the gallery shows how simple Newtonian mechanics can be used to introduce a simple wave. ...an exist in two different places. The answer is ''probability''. Quantum mechanics does tell where the electron is. It tells us where the eletron ''might be' ...6 KB (931 words) - 12:37, 15 December 2022
- ...physics known at the beginning of the 20th century. It included classical mechanics (Newton's laws), classical thermodynamics (see [[Thermodynamics]]), and ele ...ere made to understand these experiments. The theory now called '''quantum mechanics''' is the result. ...8 KB (1,255 words) - 23:37, 12 December 2021
- ==What are the first principles of Quantum Mechanics?== ...servational properties'' is called a ''state vector''. This is the core of quantum physics. ...16 KB (2,687 words) - 12:15, 25 January 2020
- ...e solution to Schrödinger equation for a [[w: quantum harmonic oscillator| quantum harmonic oscillator]]. The quantum mechanical version of a classical theory begins with some canonical version ...11 KB (1,885 words) - 16:05, 2 January 2024
- == Origins of Quantum Physics == ...n (or cavity radiation), and has a special place in the history of quantum mechanics. ...20 KB (3,032 words) - 03:16, 22 October 2020
- To be a working quantum physicist, you will need a working knowledge of all of [[calculus]]; PDE's( === How to understand quantum mechanics === ...5 KB (747 words) - 04:00, 16 December 2023
- ==Quantum mechanics timeline== ...also Wikipedia's '''[[w:Timeline of quantum mechanics|Timeline of quantum mechanics]]''' ...40 KB (6,289 words) - 17:47, 8 February 2025
- In [[quantum mechanics]], when a particle is not subjected to any external force (i.e., it exists [[Category:Quantum mechanics]] ...4 KB (567 words) - 12:37, 15 December 2022
- It is a well known result of classical mechanics that a system with only two particles (with coordinates ''x''<sub>1</sub>, We will consider two important cases: the rigid rotor, and [[Quantum mechanics/The hydrogen atom|the hydrogen atom]]. ...9 KB (1,385 words) - 23:08, 18 August 2024
- ...B'' is not precisely determined. One of the most shocking ideas of quantum mechanics is that it is not possible to measure with arbitrary accuracy any desired o ...th> and <math>\hat{p}_x</math> is ''iħ'' (one of the postulates of quantum mechanics was <math>\hat{x} \hat{p}_x - \hat{p}_x \hat{x} = i\hbar</math>) so: ...11 KB (1,849 words) - 01:17, 12 June 2020
- ...rried in discrete quantized packets. This discovery led to the [[w:quantum|quantum]] revolution (and a [[w: Nobel Prize in Physics|Nobel Prize]] for Einstein ==Contrasting the Quantum and Classical Models== ...8 KB (1,258 words) - 12:36, 15 December 2022
- ...minus for the electrons. This is an '''additional postulate''' of quantum mechanics. ...itals with larger angular momentum quantum number ''l'' and same principal quantum number ''n'' are better screened (see Exercise) i.e. are less attracted by ...10 KB (1,545 words) - 16:14, 24 January 2016
- A harmonic oscillator (quantum or classical) is a particle in a potential energy well given by ''V''(''x'' == The quantum harmonic oscillator == ...13 KB (2,175 words) - 11:13, 24 August 2022
- ...momentum '''L'''<sub>1</sub> and '''L'''<sub>2</sub> and angular momentum quantum numbers ''l''<sub>1</sub> and ''l''<sub>2</sub>, we can define a total angu ''L'' is the total angular momentum quantum number and can take values |''l''<sub>1</sub> - ''l''<sub>2</sub>|, |''l''< ...9 KB (1,414 words) - 14:22, 29 June 2014
- In the [[Quantum mechanics/Rigid rotor|past Lesson]] we wrote the Hamiltonian for a system of two part ...art (the known spherical harmonic) and a radial part (which depends on the quantum number ''l'') and is the solution of Equation 5. ...11 KB (1,805 words) - 21:45, 19 January 2015
- ...'''observable''' (quantity that can be measured) is associated in quantum mechanics to a mathematical '''operator'''. You have seen two examples so far: To complete the description of the postulates of quantum mechanics, we need to specify: ...8 KB (1,424 words) - 01:18, 12 June 2020
- [[Category:Quantum mechanics]] ...4 KB (649 words) - 12:37, 15 December 2022
- Quantum mechanics is formally described as a set of abstract postulates from which it is poss == Description of a quantum system of particles == ...14 KB (2,319 words) - 05:54, 15 October 2021
Page text matches
- ...yes. We can find two equivalent principles (ways of looking at classical mechanics). ...han that. These principles with only slight modification apply to quantum mechanics, electrodynamics and general relativity - in other words to all of physics. ...2 KB (285 words) - 17:54, 24 July 2017
- ...pic entry in progress on Dirac notations and [[../QuantumOperatorAlgebra5/|quantum observable]] algebras.}] ...nce then has been established as one of the preferred notations in quantum mechanics. ...2 KB (220 words) - 05:06, 12 September 2020
- The Hamiltonian operator '''H''' introduced in [[../QuantumParadox/|quantum mechanics]] by Schr\"odinger (and thus sometimes also called the ...odinger operator'' . The [[../CosmologicalConstant/|energy]] conservation (quantum) law written with the operator '''H''' as the ...3 KB (357 words) - 03:41, 13 September 2020
- ...{Hamiltonian operator} '''H''' introduced in [[../QuantumParadox/|quantum mechanics]] ([[../FTNIR/|QM]]) by Schr\"odinger (and thus sometimes also called the ' The [[../CosmologicalConstant/|energy]] conservation (quantum) law written with the operator '''H''' as the ...3 KB (370 words) - 03:32, 13 September 2020
- ...ok | last=Smith | first=Henrik | year=1991 | title=Introduction to Quantum Mechanics | publisher=World Scientific Pub Co Inc |isbn=978-9810204754| pages=108–109 where <math> A^{op}</math> is any operator of quantum mechanics, <math>\langle A^{op}\rangle</math> is its [[w:expectation value|expectatio ...2 KB (367 words) - 17:54, 24 July 2017
- ..../Thermodynamics/|Thermodynamics]] and [[../ThermodynamicLaws/|statistical mechanics]] #Theoretical Geophysics #[[../LQG2/|quantum gravity]] #[[../LQG2/|quantum logics]], including LM-logic algebras ...5 KB (444 words) - 14:10, 6 May 2023
- To be a working quantum physicist, you will need a working knowledge of all of [[calculus]]; PDE's( === How to understand quantum mechanics === ...5 KB (747 words) - 04:00, 16 December 2023
- In extensions of [[../QuantumParadox/|quantum mechanics]] <ref name='RdM2k5,JPA96'/>, the [[../PreciseIdea/|concept]] of rigged Hil R. de la Madrid, "The role of the rigged Hilbert space in Quantum Mechanics.", Eur. J. Phys. 26, 287 (2005); <math>quant-ph/0502053</math>. ...2 KB (286 words) - 16:02, 12 September 2020
- ...f [[quantum mechanics|Quantum Mechanics]]. On the other hand, in classical mechanics and Einstein's relativity theories the position and momentum operators comm ...2 KB (351 words) - 22:21, 9 June 2012
- ===Mathematical Foundations of Quantum Field Theories (QFT)=== ====QED, QCD, Electroweak and Other Quantum Field Theories==== ...4 KB (428 words) - 06:30, 11 October 2023
- *Read the entire conversation at '''[[Quantum mechanics/A conversation with Bard]]''' ...sections that follow will send you to Bard's actual answer on '''[[Quantum mechanics/A conversation with Bard]]''' ...6 KB (974 words) - 10:02, 3 February 2024
- [[Category:Statistical mechanics]] The planned content of the course week by week. In previous years, quantum mechanics preceded classical physics. For a didactic point of view, it has changed. ...3 KB (477 words) - 19:16, 29 September 2016
- ...h>^4</math>He (the 1962 Nobel Prize in Physics), and Sir Anthony Leggett's quantum statistical theory of superfluidity in liquid <math>^3</math>He (the 2003 N ...1 KB (181 words) - 05:05, 1 July 2015
- *'''These topics are discussed in ''[[How things work college course/Quantum mechanics timeline]]'''''. ...uncertainty principle), which would NOT put a classical particle into the quantum regime?} ...3 KB (457 words) - 03:01, 21 September 2015
- ...a mathematically precise form by Haag's theorem in `[[../PureState/|local quantum physics]]'. On the other hand, interacting [[../CosmologicalConstant/|quantum fields]] generate non-Fock representations of the commutation and anti-comm ...2 KB (295 words) - 06:20, 11 October 2023
- ...ate a simple example of quantum commutator algebra using a one-dimensional quantum [[../GenericityInOpenSystems/|system]]. Let <math>f(q)</math> be a [[../Bij [1] Messiah, Albert. "[[../QuantumParadox/|Quantum mechanics]]: [[../Volume/|volume]] I." Amsterdam, North-Holland Pub. Co.; New York, I ...1 KB (215 words) - 03:28, 13 September 2020
- ==Heisenberg Uncertainty Principle in Quantum theories:== ...nate and conjugate [[../Momentum/|momentum]] [[../QuantumOperatorAlgebra5/|quantum operators]] then they satisfy the Heisenberg non-commutation/ 'uncertainty' ...4 KB (554 words) - 03:33, 13 September 2020
- According to [[w:quantum mechanics|quantum mechanics]] energy in physical systems cannot be exchanged in arbitrarily small porti ...entary particle|elementary particle]] is an example for such a [[w:quantum|quantum]]. In a ''many body system'' energy cannot only be carried by individual el ...2 KB (370 words) - 17:34, 19 May 2018
- ...e general framework of [[../SpaceTimeQuantizationInQuantumGravityTheories/|quantum field theories]] to [[../TrivialGroupoid/|group]] symmetries ..../PreciseIdea/|concepts]] utilized to represent [[../CosmologicalConstant/|quantum fields]] and their fundamental properties. ...4 KB (535 words) - 04:56, 12 September 2020
- ...ids in physics, but also in other areas considered more distant to quantum mechanics such as biology and mineralogy. ...a system is contained in its wave function, Ψ. The usual method of quantum mechanics using Schrödinger's equation (SE) can be summarized by the following sequen ...4 KB (571 words) - 03:23, 13 February 2018