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Effective Heisenberg equations for quadratic Hamiltonians.
- Source :
-
International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics . 7/30/2022, Vol. 37 Issue 20/21, p1-13. 13p. - Publication Year :
- 2022
-
Abstract
- In this paper, we discuss effective quantum dynamics obtained by averaging projector with respect to free dynamics. For unitary dynamics generated by quadratic fermionic Hamiltonians, we obtain effective Heisenberg dynamics. By perturbative expansions, we obtain the correspondent effective time-local Heisenberg equations. We also discuss a similar problem for bosonic case. [ABSTRACT FROM AUTHOR]
- Subjects :
- *QUADRATIC equations
*QUANTUM theory
*PROJECTORS
*EQUATIONS
Subjects
Details
- Language :
- English
- ISSN :
- 0217751X
- Volume :
- 37
- Issue :
- 20/21
- Database :
- Academic Search Index
- Journal :
- International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics
- Publication Type :
- Academic Journal
- Accession number :
- 159582788
- Full Text :
- https://doi.org/10.1142/S0217751X22430205