Results 111 to 120 of about 610,695 (319)

Maximum entanglement of quantum-dot systems with single excitation in the spin van der Waals model [PDF]

arXiv, 2001
Time evolution of entanglement of N quantum dots is analyzed within the spin-1/2 van der Waals (or Lipkin-Meshkov-Glick) XY model. It is shown that, for a single dot initially excited and disentangled from the remaining unexcited dots, the maximum bipartite entanglement can be obtained in the systems of N=2,...,6 dots only.
arxiv  

Effects of Chemical Pressure on Superconductivity in Electrochemically Intercalated (TMA)yFe2(Se1−xSx)2 (TMA = Tetramethylammonium)

Advanced Functional Materials, EarlyView.
Intercalation of a series of FeSe1−xSx host crystals with tetramethylammonium cations (TMA+) linearly scales the critical temperature Tc from 43 K down to 28 K with increasing sulfur incorporation. The chemical pressure induced by the partial substitution shows a weakening of the superconducting properties in both hosts and intercalates in a remarkably
Nadine Lammer, Dominik Werhahn, Leonard Moritz, Dirk Johrendt   +3 more
wiley   +1 more source

Sonochemical synthesis of silver nanoparticles using orange juice: Cytotoxic behaviour and applications

Hybrid Advances
One-pot open beaker green synthesis of silver nano-particles (Ag NPs) by ultrasound energy at room temperature is presented. Citrus fruit-mediated Ag NPs formation was monitored by observing surface plasmon resonance (SPR) by UV–Visible measurements ...
Sumiran Singh, Naeem Mohammad, Kavita Pal, Vividha Dhapte-Pawar, Shweta Saxena, Pawan K. Khanna   +5 more
doaj  

Heterostructures on the basis of GaAs with quantum points of InAs for photo-electric transformers [PDF]

Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2008
Heterostructures based on GaAs with InAs quantum dots obtained in the process of liquid-phase epitaxy by the method of pulse cooling of saturated solution in indium or heterostructures containing quantum dots in the area of the p–n-junction were much ...
Maronchuk I. E., Dobrozhanskiy Yu. A.
doaj  

One-Step Hydrothermal Synthesis of Yellow and Green Emitting Silicon Quantum Dots with Synergistic Effect

Nanomaterials, 2019
The concept of synergistic effects has been widely applied in many scientific fields such as in biomedical science and material chemistry, and has further attracted interest in the fields of both synthesis and application of nanomaterials. In this paper,
Zhixia Zhang, Chunjin Wei, Wenting Ma, Jun Li, Xincai Xiao, Dan Zhao   +5 more
doaj   +1 more source

Advances in Radiative Heat Transfer: Bridging Far‐Field Fundamentals and Emerging Near‐Field Innovations

Advanced Functional Materials, EarlyView.
This review synthesizes the evolution of radiative heat transfer, emphasizing the transition from far‐field to near‐field regimes. Traditional frameworks, such as Planck's law, are revisited alongside modern innovations like fluctuational electrodynamics. Applications span nanoscale thermal management, energy harvesting, and thermophotovoltaic systems.
Ambali Alade Odebowale, Andergachew Berhe, Rasheed T. Ogundare, Salah Abdo, Amer Abdulghani, Haroldo T. Hattori, Andrey E. Miroshnichenko   +6 more
wiley   +1 more source

Chemical nature and structure of organic coating of quantum dots is crucial for their application in imaging diagnostics

International Journal of Nanomedicine, 2011
Rumiana Bakalova1, Zhivko Zhelev1, Daisuke Kokuryo1, Lubomir Spasov2, Ichio Aoki1, Tsuneo Saga11Molecular Imaging Center, National Institute of Radiological Sciences, Chiba, Japan; 2Medical Faculty, Sofia University, Sofia, BulgariaBackground: One of the
Bakalova R, Zhelev Z, Kokuryo D, Spasov L, Aoki I, Saga T   +5 more
doaj  

Robust parallel laser driving of quantum dots for multiplexing of quantum light sources

Scientific Reports
Deterministic sources of quantum light (i.e. single photons or pairs of entangled photons) are required for a whole host of applications in quantum technology, including quantum imaging, quantum cryptography and the long-distance transfer of quantum ...
Ajan Ramachandran, Grant R. Wilbur, Reuble Mathew, Allister Mason, Sabine O’Neal, Dennis G. Deppe, Kimberley C. Hall   +6 more
doaj   +1 more source

Gram-Scale Synthesis of Blue-Emitting CH3NH3PbBr3 Quantum Dots Through Phase Transfer Strategy

Frontiers in Chemistry, 2018
Reprecipitation synthesis has been demonstrated to be a simple and convenient route to fabricate high quality perovskite quantum dots toward display applications, whereas the limited chemical yields (< 10%) and difficulty of purification limited its ...
Feng Zhang, Changtao Xiao, Yunfei Li, Xin Zhang, Jialun Tang, Shuai Chang, Qibing Pei, Haizheng Zhong   +7 more
doaj   +1 more source

Fast control of quantum states in quantum dots: limits due to decoherence [PDF]

arXiv, 2003
We study the kinetics of confined carrier-phonon system in a quantum dot under fast optical driving and discuss the resulting limitations to fast coherent control over the quantum state in such systems.
arxiv