entanglement of higher-derivative oscillators in holographic systems
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2017
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Abstract
We study the quantum entanglement of coupled Pais–Uhlenbeck oscillators using the formalism of thermo-field dynamics. The entanglement entropy is computed for the specific cases of two and a ring of N coupled Pais–Uhlenbeck oscillators of fourth order. It is shown that the entanglement entropy depends on the temperatures, frequencies and coupling parameters of the different degrees of freedom corresponding to harmonic oscillators. We also make remarks on the appearance of instabilities of higher-derivative oscillators in the context of AdS/CFT correspondence. Finally, we advert to the information geometry theory by calculating the Fisher information metric for the considered system of coupled oscillators.
| Reference Key |
dimov2017nuclearentanglement
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|---|---|
| Authors | ;Hristo Dimov;Stefan Mladenov;Radoslav C. Rashkov;Tsvetan Vetsov |
| Journal | biology and fertility of soils |
| Year | 2017 |
| DOI |
10.1016/j.nuclphysb.2017.03.005
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