Quantum adiabatic cycles and their breakdown
While the Landau-Zener problem is conventionally used to describe defects formation in quantum systems, it cannot be applied to non-interacting Bose excitations as the adiabatic perturbation theory assumptions are violated by Bose statistics. Here, the author investigates adiabatic cycles across qua...
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/2d47dd26e2c74d23a9b0cf45874e6590 |
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| Sumario: | While the Landau-Zener problem is conventionally used to describe defects formation in quantum systems, it cannot be applied to non-interacting Bose excitations as the adiabatic perturbation theory assumptions are violated by Bose statistics. Here, the author investigates adiabatic cycles across quantum critical points with harmonic Bose quasi-particles and shows that adiabaticity breakdown is a universal feature of these systems |
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