FEF  Makale Koleksiyonu  Enformasyon Teknolojileri Bölümü / Department of Information Technologies by Işık Author "Özaydın, Fatih"
Now showing items 120 of 22

Alpha head on collision with a fixed gold nucleus, taking into account the relativistic rest mass variation as implied by massenergy equivalence
Yarman, Nuh Tolga; Arık, Metin; Kholmetskii, Alexander; Altıntaş, Azmi Ali; Özaydın, Fatih (Polish Acad Sciences Inst Physics, 201402)We reformulate the Rutherford scattering of alpha particle for a head on collision, taking into account the rest mass variation of the particle, as implied by the energy conservation law. Our relativistic reformulation ... 
Analysis of entanglement measures and LOCC maximized quantum fisher information of general two qubit systems
Erol, Volkan; Özaydın, Fatih; Altıntaş, Azmi Ali (Nature Publishing Group, 20140624)Entanglement has been studied extensively for unveiling the mysteries of nonclassical correlations between quantum systems. In the bipartite case, there are well known measures for quantifying entanglement such as ... 
Behavior of quantum fisher information of bell pairs under decoherence channels
Özaydın, Fatih; Altıntaş, Azmi Ali; Buğu, Sinan; Yeşilyurt, Can (Polish Acad Sciences Inst Physics, 201402)Quantum Fisher information has recently been an essential tool for analyzing the phase sensitivity of the quantum states in various quantum tasks, requiring high precision, such as quantum clock synchronization, positioning ... 
Constructing quantum logic gates using qdeformed harmonic oscillator algebras
Altıntaş, Azmi Ali; Özaydın, Fatih; Yeşilyurt, Can; Buğu, Sinan; Arık, Metin (Springer, 201404)We study twolevel qdeformed angular momentum states, and using qdeformed harmonic oscillators, we provide a framework for constructing qubits and quantum gates. We also present the construction of some basic onequbit ... 
Deterministic generation of large scale atomic W states
Zang, XuePing; Yang, Ming; Özaydın, Fatih; Song, Wei; Cao, ZhuoLiang (Optical Soc Amer, 20160530)We present a deterministic scheme for generating largescale atomic W states in a cavity QED system via a simple expansion mechanism, which is realized only by a detuned interaction between two identical atoms and a vacuum ... 
Deterministic local doubling of W states
Özaydın, Fatih; Yeşilyurt, Can; Buğu, Sinan; Altıntaş, Azmi Ali; Tame, Mark S.; Yang, Lan; Özdemir, Şahin Kaya (OSA  The Optical Society, 20161101)In large quantum systems, multipartite entanglement can be found in many inequivalent classes. Preparing states of arbitrary size in different classes is important for performing a wide range of quantum protocols. W states, ... 
Enhancing the W state fusion process with a toffoli gate and a CNOT gate via oneway quantum computation and linear optics
Özaydın, Fatih; Diker, F.; Arık, Metin (Polish Acad Sciences Inst Physics, 201504)Creation of largescale W state quantum networks is a key step for realization of various quantum information tasks. Regarding the photonics technology, a simple optical setup was proposed for the fusion of two W states. ... 
Freezing optical rogue waves by Zeno dynamics
Bayındır, Cihan; Özaydın, Fatih (Elsevier Science BV, 20180415)We investigate the Zeno dynamics of the optical rogue waves. Considering their usage in modeling rogue wave dynamics, we analyze the Zeno dynamics of the Akhmediev breathers, Peregrine and AkhmedievPeregrine soliton ... 
Fusing multiple W states simultaneously with a Fredkin gate
Özaydın, Fatih; Buğu, Sinan; Yeşilyurt, Can; Altıntaş, Azmi Ali; Tame, Mark; Kaya Özdemir, Şahin (Amer Physical Soc, 20140414)We propose an optical scheme to prepare largescale entangled networks of W states. The scheme works by simultaneously fusing three polarizationencoded W states of arbitrary size via accessing only one qubit of each W ... 
Generating multiatom entangled W states via lightmatter interface based fusion mechanism
Özaydın, Fatih; Zang, XuePing; Yang, Ming; Song, Wei; Cao, ZhuoLiang (Nature Publishing Group, 20151109)W state is a key resource in quantum communication. Fusion technology has been proven to be a good candidate for preparing a largesize W state from two or more smallsize W states in linear optical system. It is of great ... 
Generating multiphoton Wlike states for perfect quantum teleportation and superdense coding
Li, Ke; Kong, Fanzhen; Özaydın, Fatih; Yang, Qing; Cao, Zhuoliang; Yang, Ming (Springer New York LLC, 20160506)An interesting aspect of multipartite entanglement is that for perfect teleportation and superdense coding, not the maximally entangled W states but a special class of nonmaximally entangled Wlike states are required. ... 
A novel approach to the systematization of alphadecaying nuclei, based on shell structures
Yarman, Nuh Tolga; Zaim, Nimet; Kholmetskii, Alexander; Arık, Metin; Altıntaş, Ali Azmi; Özaydın, Fatih; Susam, Lidya Amon (Springer, 20160524)We provide a novel systematization of alphadecaying nuclei, starting with the classically adopted mechanism. The decay halflife of an alphadisintegrating nucleus is framed, supposing that i) the alphaparticle is born ... 
Parameter estimation with Dzyaloshinskii–Moriya interaction under external magnetic fields
Özaydın, Fatih; Altıntaş, Azmi Ali (Springer, 20200201)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, 20140905)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 ... 
Preparing multipartite entangled spin qubits via pauli spin blockade
Buğu, Sinan; Özaydın, Fatih; Ferrus, Thierry; Kodera, Tetsuo (Nature Research, 20200226)Preparing largescale multipartite 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. ... 
Quantum fisher information of a 3 x 3 bound entangled state and its relation with geometric discord
Özaydın, Fatih (Springer/Plenum Publishers, 201509)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, 20150424)We study the quantum Fisher information (QFI) of W states and Wlike states under decoherence. In particular, we find that on the contrary to amplitude damping and depolarizing decoherence, a Wlike 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, 201409)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 shotnoise limit with DzyaloshinskiiMoriya interaction
Özaydın, Fatih; Altıntaş, Azmi Ali (Nature Publishing Group, 20151109)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 ... 
Surpassing the classical limit in magic square game with distant quantum dots coupled to optical cavities
Buğu, Sinan; Özaydın, Fatih; Kodera, Tetsuo (Nature Research, 20201217)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 ...