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Terahertz frequency-domain characterization of UHMW-PE ballistic armor plates Candan, Can; Kocyigit, Kayrahan; Tiken, Mehmet; ŞAHİN, ASAF BEHZAT; Altan, Hakan; BERBEROĞLU, HALİL (2026-01-01) Ultra-high molecular weight polyethylene (UHMW-PE) fiber-based ballistic armor plates are analyzed in the terahertz (THz) frequency region to better understand their structural properties. Various thickness plates are prod...
Hydrolysis of Al for hydrogen production: A joint experimental and first-principles density functional theory investigation Mutlu, Rasiha Nefise; Eroğlu, Esra; Toffoli, Hande; Toffoli, Daniele; Jayaraman, Kandasamy; Karaca, Mehmet; Gökalp, İskender (2025-12-15) Efficient and environmentally friendly H2 production is one of the most pressing challenges that face modern energy science. Hydrolysis of water over metals is used as an affordable and sustainable method for H2 production...
Optical gating in photodetector for femtosecond time-resolved imaging Kadan, Viktor; Dmytruk, Andriy; Bondar, Mykhailo; Dmytruk, Igor; Goodarzi, Arian; Akhtaryarazar, Darya; Pavlov, Ihor (2025-12-01) Non-degenerate two-photon femtosecond gating directly within a photosensor has been investigated in both external and internal photoeffect configurations, with the aim of enabling fast time-resolved imaging applications. T...
Why teach quantum in your own time: the values of grassroots organizations involved in quantum technologies education and outreach Genenz, Ulrike; Anne, Neelanjana; KILIÇ, ZEYNEP; Mathews, Daniel; Ok, Oya; Schmidt, Adrian; Seskir, Zeki Can (2025-12-01) This paper examines the intersection of goals and values within grassroots organizations operating in the realm of quantum technologies (QT) education. It delineates a fundamental distinction between the objective to provi...
Instability and information production around Kerr black holes: effects on entropy and the shadow Tavlayan, Aydın; Tekin, Bayram (2025-11-01) Massless or massive particles in unstable orbits around a Kerr black hole exhibit exponentially unstable motion when perturbed. They either plunge into the black hole or escape to infinity after making some oscillations ar...
Towards the double copy formulation for the Abelian sector of heterotic double field theory Yılmaz, Rasim (2025-11-01) It is known that the double field theory (DFT) action can be constructed perturbatively up to cubic order through the double copy of the Yang–Mills (YM) theory. This approach also extends to higher-derivative YM theories, ...
Novel approaches for determining 30 MeV proton beam energy and dosimetric parameters using stopping power Yüksel, Zeynep; Tufan, Mustafa Çağatay; Mutuk, Tuğba; Gürbüz, Mevlüt; Bilmez, Bayram; Demirköz, Melahat Bilge (2025-10-01) In this study, a different semiempirical method has been developed to determine the beam energy, which is crucial point in experimental studies. For this purpose, the Bragg curve was determined both experimentally using ta...
Diffeomorphism invariance breaking in gravity and cosmological evolution Aydemir, Ufuk; Elbistan, Mahmut (2025-10-01) Diffeomorphism invariance breaking has been investigated in the literature in several contexts, including emergent General Relativity (GR). If GR emerges from an underlying theory without diffeomorphism invariance, there m...
Charmonium content of χc1(3872) in light-cone sum rules at twist 3 AKAN, TARIK; Olpak, Mehmet Ali; Özpineci, Altuğ (2025-10-01) In this study, we utilize light-cone QCD sum rules at twist-3 accuracy to compute the coupling parameters of the chi c1(2P) state with D and D* mesons. The analysis reveals that the observed chi c1(3872) meson incorporates...
Comprehensive optical characterization of InSe layered crystals: linear and nonlinear response via spectroscopic ellipsometry Isik, M.; Hasanlı, Nızamı (2025-09-01) Layered indium selenide (InSe) crystals were thoroughly examined using spectroscopic ellipsometry and optical transmission techniques to explore their linear and nonlinear optical behavior. The absorption edge analysis yie...
Bulk/boundary modular quintessence and DESI Anchordoqui, Luis A.; Antoniadis, Ignatios; Cribiori, Niccolò; Hasar, Arda; Lüst, Dieter; Masias, Joaquin; Scalisi, Marco (2025-09-01) The latest DESI DR2 results, when combined with other independent cosmological data on the Cosmic Microwave Background and supernovas, suggest a preference for dynamical dark energy. We propose a novel cosmological scenari...
Double copy map for double field theory on an arbitrary constant background Yılmaz, Rasim (2025-09-01) Double field theory (DFT) can be constructed up to third order as the double copy of Yang-Mills theory. In this construction, one starts with Yang-Mills theory on Minkowski space and the resulting DFT action is also define...
Screen printed Ag-doped nickel metallization for industrial n-TOPCon silicon solar cells Unsur, Veysel; Arslan, Melisa Korkmaz; Alloji, Esma; Akgayev, Berkeli; Tokgoz, Halil; Turan, Raşit; Akbayrak, Serdar (2025-08-01) This study introduces an innovative Ag-doped Ni metallization technique for TOPCon silicon solar cells, offering a cost-effective alternative to traditional silver-based contacts. Employing nickel paste doped with only 4 %...
Production of neutron-rich heavy nuclei in deep-inelastic <SUP>208</SUP>Pb+<SUP>208</SUP>Pb collisions within the stochastic mean-field theory Sekizawa, K.; Ayik, S.; KARANFİL, EGE CAN; Arik, M.; Yılmaz, Osman; Umar, A. S. (2025-08-01) Background: In deep-inelastic collisions of heavy nuclei, reaction products with a wide range of mass and charge are produced. Such collisions been considered as a possible way to produce superheavy nuclei, as an alternati...
Vortex and fractional quantum Hall phases in a rotating anisotropic Bose gas Tanyeri, Umut; Kallushi, A.; Umucalilar, R. O.; Keleş, Ahmet (2025-08-01) Realizing fractional quantum Hall (FQH) states in ultracold atomic systems remains a major goal despite numerous experimental advances in the last few decades. Recent progress in trap anisotropy control under rapid rotatio...
Fluid-membrane descriptions of various black holes Ağca, Çağdaş Ulus; Tekin, Bayram (2025-08-01) The membrane paradigm of black holes is an effective theory that replaces the event horizon with a fictitious yet tangible fluid. It has provided us with valuable insights, especially in understanding the environment of bl...
Proposal of dual-gate oxide layered with HfO2: Comparative results with SiO2-RadFET Yilmaz, Ercan; Ristić, Goran; Turan, Raşit; Yilmaz, Ozan; Gurer, Umutcan; Danković, Danijel; Budak, Erhan; Marjanović, Miloš; Veljković, Sandra; Mutale, Alex; Kahraman, Aysegul (2025-07-01) The aim of this study is to develop pMOS dosimeters that can exhibit high performance at high radiation doses compared to traditional SiO2-based RadFETs, for which a dual-gate oxide-layered sensor is proposed. The sensor c...
Soft limits of gluon amplitudes in holography and cosmology Albayrak, Soner; Kharel, Savan (2025-07-01) In this work, we extend the study of soft limits to (Anti) de Sitter spaces, investigating the analytic structure of holographic gluon correlators as part of a broader effort to reveal new symmetries and fundamental struct...
Explaining Belle data on B→K(*)vv decays via dark Z resonances Alıyev, Tahmasıb; Elpe, A.; SELBUZ, LEVENT; Turan, I. (2025-07-01) The Belle II Collaboration reported the first measurement on Br(B+-* K+vv), which lies 2.76 away from the Standard Model expectation. This result may be manifestation of new physics beyond the Standard Model. In present wo...
Comprehensive ellipsometric analysis of linear and nonlinear optical properties of GaAs for optoelectronic and communication applications Isik, Mehmet; Hasanlı, Nızamı (2025-07-01) Gallium arsenide (GaAs), a widely studied semiconductor, has attracted sustained scientific interest for decades due to its critical role in optoelectronic devices. In this study, we present an extensive analysis of both l...

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