Researcher:
Izadyari, Mohsen

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PhD Student

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Mohsen

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Izadyari

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Izadyari, Mohsen

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2019 - 201912020 - 20221

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Researcher Of Publications: search.filters.isAuthorOfPublication.9bdeaaeb-c736-4274-85b8-63593ed9941c

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    Quantum signatures in a quadratic optomechanical heat engine with an atom in a tapered trap
    (Optica Publishing Group, 2022) Oncu, Mehmet; Durak, Kadir; N/A; Department of Physics; Department of Physics; Izadyari, Mohsen; Müstecaplıoğlu, Özgür Esat; PhD Student; Faculty Member; Graduate School of Sciences and Engineering; College of Sciences; N/A; 1674
    We investigate how quantum signatures can emerge in a single atom heat engine consisting of an atom confined in a tapered trap and subjected to hot and cold thermal reservoirs. A similar system was realized experimentally in Science 352, 325 (2016). We model such a system using a quadratic optomechanical model and identify an effective Otto cycle in the system's dynamics. We compare the engine's performance in quantum and classical regimes by evaluating the power dissipated. We find that lowering the temperature is insufficient to make the single atom engine in Science 352, 325 (2016) a genuine quantum-enhanced heat engine. We show that it is necessary to make the trap more asymmetric and confined to ensure that quantum correlations cause an enhancement in the power output.
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    PublicationOpen Access
    Work and heat value of bound entanglement
    (Springer, 2019) Dağ, Ceren B.; Özaydın, Fatih; Department of Physics; Department of Physics; Tuncer, Aslı; Izadyari, Mohsen; Müstecaplıoğlu, Özgür Esat; Faculty Member; Graduate School of Sciences and Engineering; College of Sciences; N/A; N/A; 1674
    Entanglement has recently been recognized as an energy resource which can outperform classical resources if decoherence is relatively low. Multi-atom entangled states can mutate irreversibly to so-called bound entangled (BE) states under noise. Resource value of BE states in information applications has been under critical study, and a few cases where they can be useful have been identified. We explore the energetic value of typical BE states. Maximal work extraction is determined in terms of ergotropy. Since the BE states are nonthermal, extracting heat from them is less obvious. We compare single and repeated interaction schemes to operationally define and harvest heat from BE states. BE and free entangled (FE) states are compared in terms of their ergotropy and maximal heat values. Distinct roles of distillability in work and heat values of FE and BE states are pointed out. Decoherence effects in dynamics of ergotropy and mutation of FE states into BE states are examined to clarify significance of the work value of BE states. Thermometry of distillability of entanglement using micromaser cavity is proposed.