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[[Category:Theorems in quantum mechanics]] ...

...Dardashti|title=No-go theorems: What are they good for? |journal=[[Studies in History and Philosophy of Science]] |volume=4 |issue=1 |pages=47–55 |date=2 ==Instances of no-go theorems== ...

...nd General Phase-Space Methods in Quantum Mechanics. II. Quantum Mechanics in Phase Space", ''Phys. Rev. D'','''2''' (1970) pp. 2187–2205. {{doi|10.1103/ ...{a}^{\dagger})</math> be an operator that is expressible as a power series in the creation and annihilation operators that satisfies the ordering Ω. The ...

...as [[isospin]] and [[baryon number]] in vector-like gauge theories like [[quantum chromodynamics]] cannot be [[spontaneous symmetry breaking|spontaneously br | title = Restrictions on symmetry breaking in vector-like gauge theories ...

In [[functional analysis]], a branch of [[mathematics]], the '''Hellinger–Toep for all ''x'', ''y'' in the domain of ''A''. Note that symmetric ''everywhere-defined'' operators ...

{{Short description|Attempts to develop a quantum mechanical theory of cosmology}} {{quantum field theory}} ...

{{Short description|Theorem of quantum information processing}} ...pients. For multiple recipients to each receive the state, there must be, in some sense, a way of duplicating the state. The no-broadcast theorem gener ...

...l, two "partner potentials" are derived that can each serve as a potential in the [[Schrödinger equation]]. The partner potentials have the same [[Spectr ...ativistic quantum mechanics, because "real" spin applies only to particles in [[three-dimensional space]].) Let ''b'' and its [[Hermitian adjoint]] ''b'' ...

{{Short description|Theorem in axiomatic quantum field theory}} ...um field theory]] published by [[Helmut Reeh]] and [[Siegfried Schlieder]] in 1961. ...

{{Short description|Theorem in quantum mechanics}} {{Quantum mechanics|cTopic=Fundamental concepts}} ...

{{short description|Theorem in quantum mechanics}} ...energy related by time-reversal. In other words, the [[Degeneracy (quantum mechanics)|degeneracy]] of every energy level is an even number if it has half-intege ...

...h> of [[bound state]]s with [[azimuthal quantum number]] <math>\ell</math> in a system with central potential <math>V</math>. It takes the form ...e}}</ref> [[Julian Schwinger]] presented an alternative way of deriving it in 1961.<ref>{{Cite journal |last=Schwinger |first=J. |year=1961 |title=On the ...

==Quantum theory== ''See also [[list of mathematical topics in quantum theory]]'' ...

{{short description|Interpretation of quantum mechanics}} {{quantum|cTopic=Interpretations}} ...

{{Short description|Thermodynamics-like result in classical mechanics}} The '''Helmholtz theorem of classical mechanics''' reads as follows: ...

...in the school of natural sciences at the [[Institute for Advanced Study]] in Princeton, New Jersey. ...te=December 12, 2021}}</ref> and a [[Ph.D.]] from [[Princeton University]] in 1964. Adler completed his doctoral dissertation, titled ''High energy neutr ...

{{short description|Theorem in quantum field theory}} ...<math>C(g^{}_i,\mu)</math>, depending on the [[coupling constant]]s of the quantum field theory considered, <math>g^{}_i</math>, and on the energy scale, <mat ...

...parameter". The word moduli (''Moduln'' in German) first appeared in 1857 in [[Bernhard Riemann]]'s celebrated paper "Theorie der Abel'schen Functionen" == Moduli spaces in quantum field theories == ...

{{Short description|Theorem in quantum mechanics}} {{Quantum mechanics|Equations}} ...

{{Short description|Theorem in quantum information science}} ...atement which has profound implications in the field of [[quantum computer|quantum computing]] among others. The theorem is an evolution of the 1970 [[no-go t ...