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[[Category:Quantum chemistry]] [[Category:Chemistry stubs]] ...

{{chemistry}} ...m a theorem called the '''variation theorem''' which can be applied to any quantum mechanical problem. Below we will see only a simplified version that illust ...

...[[../MathematicalFoundationsOfQuantumTheories/|mathematical foundations of quantum theory]] in physics was also closely involved with the design and building #Physical Chemistry ...

...s of solids in physics, but also in other areas considered more distant to quantum mechanics such as biology and mineralogy. ...tion on 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 follow ...

...ic]], [[../CoIntersections/|topological]], categorical, logical (including quantum logics, [[../LM_nLogicAlgebra/|many-valued logics]], automata theory), and *[[../PreciseIdea/|concepts]]: UTM, [[../QuantumComputers/|quantum automata]] concepts ...

{{chemistry}} ...s a magnetic field, there is an extra term of the energy, dependent on the quantum number ''m'': ...

{{chemistry}} {{center top}}<big>'''Welcome to the Department of Quantum Physics!'''</big>{{center bottom}} ...

{{chemistry}} We will consider two important cases: the rigid rotor, and [[Quantum mechanics/The hydrogen atom|the hydrogen atom]]. ...

{{chemistry}} Any '''observable''' (quantity that can be measured) is associated in quantum mechanics to a mathematical '''operator'''. You have seen two examples so f ...

{{chemistry}} ...momentum '''L'''₁ and '''L'''₂ and angular momentum quantum numbers ''l''₁ and ''l''₂, we can define a total angu ...

...the theoretical foundation for chemical thermodynamics as well as physical chemistry. As a mathematician, he was an inventor of vector analysis. *Theoretical foundation of physical chemistry ...

{{chemistry}} ...ined, ''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 ...

{{chemistry}} A harmonic oscillator (quantum or classical) is a particle in a potential energy well given by ''V''(''x'' ...

{{chemistry}} ...lti electron systems and the idea of molecular orbitals in molecules. Many chemistry students are unable to provide a precise definition of orbital; the one bel ...

===Quantum Gravity Programs=== ...aimed at developing a [[../SpaceTimeQuantizationInQuantumGravityTheories/|quantum gravity theory]]. These include--but are not limited to-- the following. ...

{{chemistry}} ...numerical exercises while making several observations on the behaviour of quantum particles. From now on, we may refer to the time independent Schrödinger eq ...

...date=1998 |author=Runeberg, Nino |journal=International Journal of Quantum Chemistry |volume=66 |page=131 |last2=Pyykkö |first2=Pekka |issue=2}}</ref> ...e=2002 |author=Malli, Gulzari L. |journal=International Journal of Quantum Chemistry |volume=90 |page=611 |issue=2}}</ref> ...

{{chemistry}} In the [[Quantum mechanics/Rigid rotor|past Lesson]] we wrote the Hamiltonian for a system o ...

...qualitative picture of molecular orbitals can be rigorously derived from a quantum chemical approach. In this section we give a very brief outline of the theo ...Erwin Schrödinger and Werner Heisenberg independently formulated a general quantum theory. Although the two formulations are mathematically equivalent, Schröd ...

{{chemistry}} ...n ''E''_k,l = ''E''_1,k + ''E''_2,l have two quantum numbers (the energy depends on two indexes) and the same is true for the ei ...