A new approach to study the Zeno effect for a macroscopic quantum system under frequent interactions with a harmonic environment
| Autor: | F. Ghasemi, Afshin Shafiee |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Multidisciplinary lcsh:R lcsh:Medicine Harmonic (mathematics) State (functional analysis) Expression (computer science) 01 natural sciences Quantum mechanics Article 010305 fluids & plasmas 0103 physical sciences Domain (ring theory) Quantum system lcsh:Q Perturbation theory 010306 general physics Zeno's paradoxes lcsh:Science Theoretical physics Quantum Zeno effect |
| Zdroj: | Scientific Reports, Vol 9, Iss 1, Pp 1-10 (2019) Scientific Reports |
| ISSN: | 2045-2322 |
| Popis: | Quantum Zeno and anti-Zeno behaviors of a two-level macroscopic quantum system in interaction with a harmonic environment are studied using the perturbation theory. The system-environment interactions are applied in a successive and step-by-step way. A new expression for the probability of surviving the macrosystem in its initial state, after the Nth interaction step, is derived through a different method of calculation. It is shown that multiple transitions between Zeno and anti-Zeno behaviors can be found in our approach. We have shown that in addition to the environmental parameters like the Ohmicity, the macroscopic trait of the system also has a notable effect on the decay rate Γ(τ). Moreover, we have investigated how the decay rate Γ(τ) varies as the parameter of the macroscopicity of the system $$\tilde{{\boldsymbol{h}}}$$ h ˜ changes continuously in a given domain. |
| Databáze: | OpenAIRE |
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