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The Dirac picture
| Content Provider | Scilit |
|---|---|
| Author | Belkić, Dževad |
| Copyright Year | 2020 |
| Description | The two analysed pictures of quantum mechanics are not the only possible ones. Quite the opposite, all the unitary transformations carried out on the state vectors and the observables of the Schrödinger picture, in fact, define a new formalism of quantum mechanics. There are infinitely many such formalisms but they are all rigorously equivalent. For any particular problem, we should adopt a picture which is most efficient in providing adequate solutions. However, among all of the possible, alternative pictures of quantum mechanics, of particular importance for scattering theory is the so-called interaction picture, which was first introduced by Dirac. Hence, the alternative name: the Dirac picture. We emphasize here the crucial importance of the unitary operators. This is most directly noticed in the fact that all the relevant predictions of the theory are given by the matrix elements of the evolution operator U(t, $t_{0}$). Book Name: Principles of Quantum Scattering Theory |
| Related Links | https://content.taylorfrancis.com/books/download?dac=C2006-0-06687-3&isbn=9780429146497&doi=10.1201/9780429146497-9&format=pdf |
| Ending Page | 59 |
| Page Count | 9 |
| Starting Page | 51 |
| DOI | 10.1201/9780429146497-9 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2020-01-15 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Principles of Quantum Scattering Theory Mathematical Physics Quantum Mechanics Dirac Picture |
| Content Type | Text |
| Resource Type | Chapter |
