Pusuluk, Onur

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O. Pusuluk
Onur PUSULUK
Onur Pusuluk
ONUR PUSULUK
PUSULUK, Onur
Pusuluk, Onur
Onur, Pusuluk
Pusuluk,O.
P.,Onur
Pusuluk, O.
Pusuluk,Onur
Pusuluk, ONUR
P., Onur
PUSULUK, ONUR
Job Title
Dr. Öğr. Üyesi
Email Address
onur.pusuluk@khas.edu.tr
ORCID ID
0000-0002-9167-7273
Scopus Author ID
57203729209
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2

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2

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    Article
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    Geometrical optimization of spin clusters for the preservation of quantum coherence
    (Amer Physical Soc, 2024) Pusuluk, Onur; Pusuluk, Onur; Mustecaplioglu, Ozguer E.
    We investigate the influence of geometry on the preservation of quantum coherence in spin clusters subjected a thermal environment. Assuming weak interspin coupling, we explore the various buffer network configura yons that can be embedded in a plane. Our findings reveal that the connectivity of the buffer network is crucial indetermining the preservation duration of quantum coherence in an individual central spin. Specifically, we observe that the maximal planar graph yields the longest preservation time for a given number of buffer spins. Interestingly, our results demonstrate that the preservation time does not consistently increase with an increasing #umber of buffer spins. Employing a quantum master equation in our simulations, we further demonstrate that a Cetrahedral geometry comprising a four-spin buffer network provides optimal protection against environmental Tects.
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    What is Quantum in probabilistic explanations of the sure-thing principle violation?
    (Elsevier Sci Ltd, 2024) Pusuluk, Onur; Pusuluk, Onur
    The Prisoner's Dilemma game (PDG) is one of the simple test -beds for the probabilistic nature of the human decision -making process. Behavioral experiments have been conducted on this game for decades and show a violation of the so-called sure -thing principle , a key principle in the rational theory of decision. Quantum probabilistic models can explain this violation as a second -order interference effect, which cannot be accounted for by classical probability theory. Here, we adopt the framework of generalized probabilistic theories and approach this explanation from the viewpoint of quantum information theory to identify the source of the interference. In particular, we reformulate one of the existing quantum probabilistic models using density matrix formalism and consider different amounts of classical and quantum uncertainties for one player's prediction about another player's action in PDG. This enables us to demonstrate that what makes possible the explanation of the violation is the presence of quantum coherence in the player's initial prediction and its conversion to probabilities during the dynamics. Moreover, we discuss the role of other quantum informationtheoretical quantities, such as quantum entanglement, in the decision -making process. Finally, we propose a three -choice extension of the PDG to compare the predictive powers of quantum probability theory and a more general probabilistic theory that includes it as a particular case and exhibits third -order interference.