Stare cuantică

În mecanica cuantică, prin stare cuantică se înțelege starea unui sistem cuantic izolat. O anumită stare cuantică creează o anumită distribuție de probabilitate pentru valorile fiecărei mărimi observabil⁠(d) și fiecăreia din posibilele rezultate ale Format:Ill-wd Q907385 parametrilor și a mărimilor observabile ale sistemului.

A cunoaște starea cuantică la un moment dat sau a unui interval timp determinat din evoluția sistemului presupune epuizarea oricăror preziceri în legătură cu comportarea viitoare a sistemului.[1][2]


Generalizări matematice

Stările cuantice pot fi formulate în funcție de mărimile observabile, mai degrabă decât ca vectori ai unui spațiu vectorial. Astfel, există funcționale liniare normalizate pozitive în C*-algebră, sau uneori alte clase de algebre de observabile.

A se vedea și

Referințe

  1. ^ Lecture 2 | Quantum Entanglements, Part 1 (Stanford), Leonard Susskind on quantum state, 2006-10-02.
  2. ^ Lecture 2 | Quantum Entanglements, Part 1 (Stanford), Leonard Susskind on state of a system, classical and quantum physics, 2006-10-02.

Note

Bibliografie

Conceptul de stări cuantice, în particular cu referire la en formalismul din fizica cuantică, este descrisă în majoritatea manualelor standard.

Pentru a vedea aspectele conceptuale și o comparație cu stările clasice, a se vedea,

Pentru o acoperire în detaliu, a multor aspecte matematice, a se vedea,

  • en Bratteli, Ola; Robinson, Derek W (). Operator Algebras and Quantum Statistical Mechanics 1. Springer. ISBN 978-3-540-17093-8. 2nd edition.  In particular, see Sec. 2.3.

Pentru o discuție asupra stărilor cuantice mixte, a se vedea, Capitolul Doi al notelor cursului lui John Preskill's de la CalTech, Physics 219 - Caltech.

Pentru a discuta aspectele geometrice ale problemei, a se vedea,

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