keyword
MENU ▼
Read by QxMD icon Read
search

Entanglement

keyword
https://www.readbyqxmd.com/read/28936276/microscopic-origin-of-wall-slip-during-flow-of-an-entangled-dna-solution-in-microfluidics-flow-induced-chain-stretching-versus-chain-desorption
#1
Orin Hemminger, Pouyan E Boukany
Despite the relevance and importance of slip, a fundamental understanding of the underlying molecular mechanisms of wall slip in polymer flow is still missing. In this work, we investigate the slip behavior of an entangled DNA solution at a molecular scale using a confocal microscope coupled to a microfluidic device. From microscopic measurement, we obtain both the velocity profile and conformation of polymeric chains by visualizing DNA molecules during flow on various surfaces (ranging from weak to strong interactions with DNA molecules)...
July 2017: Biomicrofluidics
https://www.readbyqxmd.com/read/28935985/polarization-entangled-photon-generation-using-partial-spatially-coherent-pump-beam
#2
Yaseera Ismail, Stuti Joshi, Francesco Petruccione
The generation of two photon fields, to date, has been demonstrated utilizing a fully coherent pump beam. In this paper we demonstrate, the theoretical and experimental generation of polarization entangled single photon pairs by varying the spatial coherence of the pump beam. The effect of the pump beam spatial coherence on the visibility of a polarization-entangled single photon source is investigated. A comparison of the visibility measurements using a fully coherent and partially coherent pump beam is performed...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935969/simultaneous-entanglement-swapping-of-multiple-orbital-angular-momentum-states-of-light
#3
Yingwen Zhang, Megan Agnew, Thomas Roger, Filippus S Roux, Thomas Konrad, Daniele Faccio, Jonathan Leach, Andrew Forbes
High-bit-rate long-distance quantum communication is a proposed technology for future communication networks and relies on high-dimensional quantum entanglement as a core resource. While it is known that spatial modes of light provide an avenue for high-dimensional entanglement, the ability to transport such quantum states robustly over long distances remains challenging. To overcome this, entanglement swapping may be used to generate remote quantum correlations between particles that have not interacted; this is the core ingredient of a quantum repeater, akin to repeaters in optical fibre networks...
September 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28935870/relating-quantum-coherence-and-correlations-with-entropy-based-measures
#4
Xiao-Li Wang, Qiu-Ling Yue, Chao-Hua Yu, Fei Gao, Su-Juan Qin
Quantum coherence and quantum correlations are important quantum resources for quantum computation and quantum information. In this paper, using entropy-based measures, we investigate the relationships between quantum correlated coherence, which is the coherence between subsystems, and two main kinds of quantum correlations as defined by quantum discord as well as quantum entanglement. In particular, we show that quantum discord and quantum entanglement can be well characterized by quantum correlated coherence...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28933852/entangled-two-photon-absorption-cross-section-on-the-808-nm-region-for-the-common-dyes-zinc-tetraphenylporphyrin-and-rhodamine-b
#5
Juan Pablo Villabona-Monsalve, Omar Calderón-Losada, Mayerlin Nunez Portela, Alejandra Valencia
We report the measurement of the entangled two photon absorption (ETPA) cross section, σΕ , at 808 nm on organic chromophores in solution in a low photon flux regime. We performed measurements on Zinc tetraphenylporphyrin (ZnTPP) in Toluene and Rhodamine B (RhB) in Methanol. This is, to the best of our knowledge, the first time that σΕ is measured for RhB. Additionally, we report a study of the dependence of σΕ on the molecular concentration for both molecular systems. In contrast to previous experiments, our measurements are based on detecting the pairs of photons that are transmitted by the molecular system...
September 21, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28932188/is-there-evidence-for-myelin-modeling-by-astrocytes-in-the-normal-adult-brain
#6
Alfredo Varela-Echevarría, Víctor Vargas-Barroso, Carlos Lozano-Flores, Jorge Larriva-Sahd
A set of astrocytic process associated with altered myelinated axons is described in the forebrain of normal adult rodents with confocal, electron microscopy, and 3D reconstructions. Each process consists of a protuberance that contains secretory organelles including numerous lysosomes which polarize and open next to disrupted myelinated axons. Because of the distinctive asymmetric organelle distribution and ubiquity throughout the forebrain neuropil, this enlargement is named paraxial process (PAP). The myelin envelope contiguous to the PAP displays focal disruption or disintegration...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28932063/-castor-oil-the-culprit-of-acute-hair-felting
#7
V Ramya Maduri, Ahalya Vedachalam, S Kiruthika
Acute hair felting is a rare disorder of scalp hair. In this condition, the hair becomes twisted, entangled as a hard stony mass resembling a bird's nest. Sudden hair matting has been reported earlier in the literature after vigorous use of chemical and herbal shampoos. Plica polonica is a patchy area of hair matting occurring in due course of time in neglected hair or underlying psychiatric illness. This case is interesting as the whole scalp hair matted immediately after using coconut oil and castor oil following washing...
July 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28931906/discrete-time-quantum-walk-with-phase-disorder-localization-and-entanglement-entropy
#8
Meng Zeng, Ee Hou Yong
Quantum Walk (QW) has very different transport properties to its classical counterpart due to interference effects. Here we study the discrete-time quantum walk (DTQW) with on-site static/dynamic phase disorder following either binary or uniform distribution in both one and two dimensions. For one dimension, we consider the Hadamard coin; for two dimensions, we consider either a 2-level Hadamard coin (Hadamard walk) or a 4-level Grover coin (Grover walk) for the rotation in coin-space. We study the transport properties e...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28928501/relationships-between-structural-fat-properties-with-sensory-physical-and-textural-attributes-of-yeast-leavened-laminated-salty-baked-product
#9
Ana E de la Horra, Gabriela N Barrera, Eugenia M Steffolani, Pablo D Ribotta, Alberto E León
The aim of this study was to establish relationships between structural fat properties and sensory, physical and textural attributes of yeast-leavened laminated salty products. Refined bovine fat (MG1) and shortening (MG2), with a solid fat content (SFC) higher than 20% at temperature range of 15-35 °C were more viscous and less sensitive to temperature changes. The micrographs of dough|fat|dough sections corresponding to samples with MG1 and MG2 revealed a lower penetration of the fat sheet in the dough section due to the more entangled fat structures that did not allow a great flow throughout the dough layer...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28927008/can-more-nanoparticles-induce-larger-viscosities-of-nanoparticle-enhanced-wormlike-micellar-system-newms
#10
Mingwei Zhao, Yue Zhang, Chenwei Zou, Caili Dai, Mingwei Gao, Yuyang Li, Wenjiao Lv, Jianfeng Jiang, Yining Wu
There have been many reports about the thickening ability of nanoparticles on the wormlike micelles in the recent years. Through the addition of nanoparticles, the viscosity of wormlike micelles can be increased. There still exists a doubt: can viscosity be increased further by adding more nanoparticles? To answer this issue, in this work, the effects of silica nanoparticles and temperature on the nanoparticles-enhanced wormlike micellar system (NEWMS) were studied. The typical wormlike micelles (wormlike micelles) are prepared by 50 mM cetyltrimethyl ammonium bromide (CTAB) and 60 mM sodium salicylate (NaSal)...
September 18, 2017: Materials
https://www.readbyqxmd.com/read/28923973/flow-induced-gelation-of-microfiber-suspensions
#11
Antonio Perazzo, Janine K Nunes, Stefano Guido, Howard A Stone
The flow behavior of fiber suspensions has been studied extensively, especially in the limit of dilute concentrations and rigid fibers; at the other extreme, however, where the suspensions are concentrated and the fibers are highly flexible, much less is understood about the flow properties. We use a microfluidic method to produce uniform concentrated suspensions of high aspect ratio, flexible microfibers, and we demonstrate the shear thickening and gelling behavior of such microfiber suspensions, which, to the best of our knowledge, has not been reported previously...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28919535/altered-gray-matter-volume-cerebral-blood-flow-and-functional-connectivity-in-chronic-stroke-patients
#12
Peifang Miao, Caihong Wang, Peng Li, Sen Wei, Chunshan Deng, Dandan Zheng, Jingliang Cheng
It is entangled connections and intensive functional interactions between cortex and subcortical structures that enable our brain to perform delicate movement, and poses plasticity to recover from stroke. However, it is still unclear how cortical structures and functions change in well-recovered patients from subcortical infarctions in motor pathway. In order to reveal neuroplasticity underlying well-recovered stroke patients, both structural (gray matter volume, GMV) and functional reorganizations (cerebral blood flow, CBF and resting-state functional connectivity, rsFC) were investigated by using multi-modal MRI...
September 14, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28917923/effect-of-carboxymethylation-on-rheological-and-drug-release-characteristics-of-terminalia-catappa-gum
#13
Radhika Sharma, Vikas Rana
The carboxymethylation of galactomannans, arabinogalactans, arbinoxylan, etc is known to modify solubility, swelling index, rheological behaviour, powder characteristics, etc. Therefore, an attempt had been made to study the effect of carboxymethylation on Terminalia catappa (TC) gum. For this, modified Williamson synthesis reaction was utilized employing Quality by Design (QbD) approach. Grafting of carboxymethyl group on Terminalia catappa was confirmed by ATR-FTIR, H(1)NMR and DSC analyses. The rheological attributes revealed that the carboxymethylation of TC lowers the viscosity, enhance thermal stability (high activation energy), disentanglement was near to re-entanglement, and weak gelling characteristic...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28917819/seabirds-and-marine-plastic-debris-in-the-northeastern-atlantic-a-synthesis-and-recommendations-for-monitoring-and-research
#14
REVIEW
Nina J O'Hanlon, Neil A James, Elizabeth A Masden, Alexander L Bond
Marine plastic pollution is an increasing, and global, environmental issue. Numerous marine species are affected by plastic debris through entanglement, nest incorporation, and ingestion, which can lead to lethal and sub-lethal impacts. However, in the northeastern Atlantic Ocean, an area of international importance for seabirds, there has been little effort to date to assess information from studies of wildlife and plastic to better understand the spatiotemporal variation of how marine plastic affects different seabird species...
September 13, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28914174/-dis-entangling-barad-materialisms-and-ethics
#15
Gregory Hollin, Isla Forsyth, Eva Giraud, Tracey Potts
In the wake of the widespread uptake of and debate surrounding the work of Karen Barad, this article revisits her core conceptual contributions. We offer descriptions, elaborations, problematizations and provocations for those intrigued by or invested in this body of work. We examine Barad's use of quantum physics, which underpins her conception of the material world. We discuss the political strengths of this position but also note tensions associated with applying quantum physics to phenomena at macro-scales...
September 1, 2017: Social Studies of Science
https://www.readbyqxmd.com/read/28913952/new-age-ideas-about-age-old-sex-separating-meiosis-from-mating-could-solve-a-century-old-conundrum
#16
Michael Brandeis
Ever since Darwin first addressed it, sexual reproduction reigns as the 'queen' of evolutionary questions. Multiple theories tried to explain how this apparently costly and cumbersome method has become the universal mode of eukaryote reproduction. Most theories stress the adaptive advantages of sex by generating variation, they fail however to explain the ubiquitous persistence of sexual reproduction also where adaptation is not an issue. I argue that the obstacle for comprehending the role of sex stems from the conceptual entanglement of two distinct processes - gamete production by meiosis and gamete fusion by mating (mixis)...
September 14, 2017: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/28904390/quantum-interference-in-the-presence-of-a-resonant-medium
#17
Dmitry A Kalashnikov, Elizaveta V Melik-Gaykazyan, Alexey A Kalachev, Ye Feng Yu, Arseniy I Kuznetsov, Leonid A Krivitsky
Interaction of light with media often occurs with a femtosecond response time. Its measurement by conventional techniques requires the use of femtosecond lasers and sophisticated time-gated optical detection. Here we demonstrate that by exploiting quantum interference of entangled photons it is possible to measure the dephasing time of a resonant media on the femtosecond time scale (down to 100 fs) using accessible continuous wave laser and single-photon counting. We insert a sample in the Hong-Ou-Mandel interferometer and observe the modification of the two-photon interference pattern, which is driven by the coherent response of the medium, determined by the dephasing time...
September 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28902225/optical-tracking-of-relaxation-dynamics-in-semi-dilute-hydroxypropylcellulose-solutions-as-a-precise-phase-transition-probe
#18
Hernan Garate, King-Wo Li, Denis Bouyer, Patrick Guenoun
Phase separation of thermo-responsive polymers in solution is a complex process, whose understanding is essential to screen and design materials with diverse technological applications. Here we report on a method based on dynamic light scattering (DLS) experiments to investigate the phase separation of thermo-responsive polymer solutions and precisely define the transition temperature (TPS). Our results are applied on hydroxypropylcellulose (HPC) solutions as an important biosourced green water-soluble polymer...
September 13, 2017: Soft Matter
https://www.readbyqxmd.com/read/28902216/primitive-chain-network-simulations-of-probe-rheology
#19
Yuichi Masubuchi, Yoshifumi Amamoto, Ankita Pandey, Cheng-Yang Liu
Probe rheology experiments, in which the dynamics of a small amount of probe chains dissolved in immobile matrix chains is discussed, have been performed for the development of molecular theories for entangled polymer dynamics. Although probe chain dynamics in probe rheology is considered hypothetically as single chain dynamics in fixed tube-shaped confinement, it has not been fully elucidated. For instance, the end-to-end relaxation of probe chains is slower than that for monodisperse melts, unlike the conventional molecular theories...
September 13, 2017: Soft Matter
https://www.readbyqxmd.com/read/28902209/application-of-the-eckart-frame-to-soft-matter-rotation-of-star-polymers-under-shear-flow
#20
Jurij Sablić, Rafael Delgado-Buscalioni, Matej Praprotnik
The Eckart co-rotating frame is used to analyze the dynamics of star polymers under shear flow, either in melt or solution and with different types of bonds. This formalism is compared with the standard approach used in many previous studies on polymer dynamics, where an apparent angular velocity ω is obtained from the relation between the tensor of inertia and angular momentum. A common mistake is to interpret ω as the molecular rotation frequency, which is only valid for rigid-body rotation. The Eckart frame, originally formulated to analyze the infrared spectra of small molecules, dissects different kinds of displacements: vibrations without angular momentum, pure rotation, and vibrational angular momentum (leading to a Coriolis cross-term)...
September 13, 2017: Soft Matter
keyword
keyword
44080
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"