Yazar "Özaydın, Fatih" için listeleme
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Parameter estimation with Dzyaloshinskii–Moriya interaction under external magnetic fields
Özaydın, Fatih; Altıntaş, Azmi Ali (Springer, 2020-02-01)We study the effects of external magnetic fields on the precision of parameter estimation with thermal entanglement of two spins in XX model, in the presence of Dzyaloshinskii–Moriya (DM) interaction. Although DM interaction ... -
Phase damping destroys quantum Fisher information of W states
Özaydın, Fatih (Elsevier Science BV, 2014-09-05)We study the quantum Fisher information (QFI) of W states in the basic decoherence channels. We show that, as decoherence starts and increases, under i) depolarizing, QFI smoothly decays; ii) amplitude damping, QFI first ... -
Powering quantum Otto engines only with q -deformation of the working substance
Özaydın, Fatih; Müstecaplıoğlu, Özgür E.; Hakioğlu, Tuğrul (American Physical Society, 2023-11)We consider a quantum Otto cycle with a q-deformed quantum oscillator working substance and classical thermal baths. We investigate the influence of the quantum statistical deformation parameter q on the work and efficiency ... -
Preparing multipartite entangled spin qubits via pauli spin blockade
Buğu, Sinan; Özaydın, Fatih; Ferrus, Thierry; Kodera, Tetsuo (Nature Research, 2020-02-26)Preparing large-scale multi-partite entangled states of quantum bits in each physical form such as photons, atoms or electrons for each specific application area is a fundamental issue in quantum science and technologies. ... -
Prisoners’ dilemma in a spatially separated system based on spin–photon interactions
Altıntaş, Azmi Ali; Özaydın, Fatih; Bayındır, Cihan; Bayrakçı, Veysel (MDPI, 2022-09)Having access to ideal quantum mechanical resources, the prisoners’ dilemma can be ceased. Here, we propose a distributed quantum circuit to allow spatially separated prisoners to play the prisoners’ dilemma game. Decomposing ... -
Quantum fisher information of a 3 x 3 bound entangled state and its relation with geometric discord
Özaydın, Fatih (Springer/Plenum Publishers, 2015-09)Recent studies on quantum Fisher information (QFI) have been focused mostly on qubit systems within the context of how entanglement helps surpassing the classical limit of separable states and the limit that a given entangled ... -
Quantum fisher information of bipartitions of W states
Özaydın, Fatih; Altıntaş, Azmi Ali; Yeşilyurt, Can; Buğu, Sinan; Erol, Volkan (Polish Acad Sciences Inst Physics, 2015-04-24)We study the quantum Fisher information (QFI) of W states and W-like states under decoherence. In particular, we find that on the contrary to amplitude damping and depolarizing decoherence, a W-like state of 3 qubits ... -
Quantum fisher information of several qubitsin the superposition of A GHZ and two W stateswith arbitrary relative phase
Özaydın, Fatih; Altıntaş, Azmi Ali; Buğu, Sinan; Yeşilyurt, Can; Arık, Metin (Springer/Plenum Publishers, 2014-09)We study the quantum Fisher information (QFI) of a system of several particles which is in a superposition of a GHZ and two W states with arbitrary relative phase. We show that as the number of particles increases from 3 ... -
Quantum metrology: Surpassing the shot-noise limit with Dzyaloshinskii-Moriya interaction
Özaydın, Fatih; Altıntaş, Azmi Ali (Nature Publishing Group, 2015-11-09)Entanglement is at the heart of quantum technologies such as quantum information and quantum metrology. Providing larger quantum Fisher information (QFI), entangled systems can be better resources than separable systems ... -
Quantum Zeno repeaters
Bayrakçı, Veysel; Özaydın, Fatih (Nature Research, 2022-09-12)Quantum repeaters pave the way for long-distance quantum communications and quantum Internet, and the idea of quantum repeaters is based on entanglement swapping which requires the implementation of controlled quantum ... -
Self-localized soliton solutions of the nonlinear quantum harmonic oscillator
Bayındır, Cihan; Özaydın, Fatih (Işık University Press, 2022)We analyze the existences, properties and stabilities of the self-localized solutions of the nonlinear quantum harmonic oscillator (NQHO) using spectral renormalization method (SRM). We show that self-localized single and ... -
Superactivating bound entanglement in quantum networks via quantum Zeno dynamics and a novel algorithm for optimized Zeno evolution
Özaydın, Fatih; Bayrakçı, Veysel; Altıntaş, Azmi Ali; Bayındır, Cihan (MDPI, 2023-01)An arbitrary amount of entanglement shared among nodes of a quantum network might be nondistillable if the nodes lack the information on the entangled Bell pairs they share. Making such a system distillable, which is called ... -
Surpassing the classical limit in magic square game with distant quantum dots coupled to optical cavities
Buğu, Sinan; Özaydın, Fatih; Kodera, Tetsuo (Nature Research, 2020-12-17)The emergence of quantum technologies is heating up the debate on quantum supremacy, usually focusing on the feasibility of looking good on paper algorithms in realistic settings, due to the vulnerability of quantum systems ... -
Temperature control in dissipative cavities by entangled dimers
Dağ, Ceren B.; Niedenzu, Wolfgang; Özaydın, Fatih; Müstecaplıoğlu, Özgür Esat; Kurizki, Gershon (Amer Chemical Soc, 2019-02-21)We show that the temperature of a cavity field can be drastically varied by its interaction with suitably entangled atom pairs (dimers) traversing the cavity under realistic atomic decoherence. To this end we resort to the ... -
Work and heat value of bound entanglement
Tuncer, Aslı; Izadyari, Mohsen; Müstecaplıoğlu, Özgür Esat; Özaydın, Fatih; Daǧ, Ceren B. (Springer, 2019-12)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 ...