Quantum systems are exceedingly difficult to engineer because they are sensitive to various types of *** particular,timedependent noises are frequently encountered in experiments but how to overcome them remains a cha...
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Quantum systems are exceedingly difficult to engineer because they are sensitive to various types of *** particular,timedependent noises are frequently encountered in experiments but how to overcome them remains a challenging *** this work,we propose a flexible robust control technique to resist time-dependent noises based on inverse geometric optimization working in the filter-function *** basic idea is to parameterize the control filter function geometrically and minimize its overlap with the noise spectral *** then effectively reduces the noise susceptibility of the controlled system *** show that the proposed method can produce high-quality robust pulses for realizing desired quantum evolutions under realistic noise ***,we demonstrate this method in examples including dynamical decoupling and quantum sensing protocols to enhance their performances.
The immense prospects of two-dimensional(2D)materials in the field of high-performance sensing stem from their unique layered structures and superior *** heterostructures and refining sen-sor architectures are at the ...
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The immense prospects of two-dimensional(2D)materials in the field of high-performance sensing stem from their unique layered structures and superior *** heterostructures and refining sen-sor architectures are at the forefront of innovative research to enhance sensor *** review *** current literature,discussing the photovoltaic attributes,fabrication methods,analytical techniques and integration strategies pertinent to 2D *** comprehensive review of the operating principles of various sensors investigates the recent progress and deployment of these materials within diverse sensing devices,including chem-ical sensors,biosensors and optical ***,this review serves as a valuable reference for understanding the applications and progress of 2D materials in high-per-formance sensors and explores their potential in interdis-ciplinary research.
By means of the multilinear variable separation(MLVS) approach, new interaction solutions with low-dimensional arbitrary functions of the(2+1)-dimensional Nizhnik–Novikov–Veselovtype system are constructed. Four-dro...
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By means of the multilinear variable separation(MLVS) approach, new interaction solutions with low-dimensional arbitrary functions of the(2+1)-dimensional Nizhnik–Novikov–Veselovtype system are constructed. Four-dromion structure, ring-parabolic soliton structure and corresponding fusion phenomena for the physical quantity U =λ(lnf)_(xy) are revealed for the first time. This MLVS approach can also be used to deal with the(2+1)-dimensional Sasa–Satsuma system.
We report the first search for the Sagittarius tidal stream of axion dark matter around 4.55 μeV using CAPP-12 TB haloscope data acquired in March of 2022. Our result excluded the Sagittarius tidal stream of Dine-Fi...
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We report the first search for the Sagittarius tidal stream of axion dark matter around 4.55 μeV using CAPP-12 TB haloscope data acquired in March of 2022. Our result excluded the Sagittarius tidal stream of Dine-Fischler-Srednicki-Zhitnitskii and Kim-Shifman-Vainshtein-Zakharov axion dark matter densities of ρa≳0.184 and ≳0.025 GeV/cm3, respectively, over a mass range from 4.51 to 4.59 μeV at a 90% confidence level.
We present the detailed fundamental stellar parameters of the close visual binary system HD 39438 for the first time. We used Al-Wardat's method for analyzing binary and multiple stellar systems. The method implem...
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We present the detailed fundamental stellar parameters of the close visual binary system HD 39438 for the first time. We used Al-Wardat's method for analyzing binary and multiple stellar systems. The method implements Kurucz's plane parallel model atmospheres to construct synthetic spectral energy distributions(SEDs) for both components of the system. It then combines the results of the spectroscopic analysis with the photometric analysis and compares them with the observed ones to construct the best synthetic SED for the combined system. The analysis gives the precise fundamental parameters of the individual components of the system. Based on the positions of the components of HD 39438 on the H-R diagram, and evolutionary and isochrone tracks, we found that the system belongs to the main sequence stars with masses of 1.24 and 0.98 solar masses for the components A and B, respectively, and age of 1.995 Gyr for both components. The main result of HD 39438 is new dynamical parallax, which is estimated to be 16.689 ± 0.03 mas.
We demonstrate an approach to integrate multiple transducers on the tip of an optical fiber, leading to multiplexed and multiparameter sensing. The sensor consists of four photonic crystals that are placed on the tip ...
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We consider a simple scalar dark matter model within the frame of gauged L_(μ)→T_(τ) symmetry.A new gauge boson Z',as well as two scalar fields S and Φ,are introduced to the Standard Model(SM),where S and Φ a...
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We consider a simple scalar dark matter model within the frame of gauged L_(μ)→T_(τ) symmetry.A new gauge boson Z',as well as two scalar fields S and Φ,are introduced to the Standard Model(SM),where S and Φ are SM singlets but both carry U(1)_(L_(μ)-L_(τ)) *** real component and imaginary component of S can acquire different masses after spontaneously breaking symmetry,and the lighter one can play the role of dark matter,which is stabilized by an extra Z_(2) *** consider the possibility of light dark matter as well as the co-annihilation case in our model and present the current(g-2)_(μ) anomaly,Higgs invisible decay,dark matter relic density,and direct detection constraints on the parameter *** detection gives the most stringent restriction on the model,and we found that although most of the parameter space is excluded,a mass region of a few GeV is still allowed where the co-annihilation process is also permitted in the model.
Cancer causes one in six deaths worldwide, and 1.6 million cancer patients face annual out-of-pocket medical expenditures. In response to these, portable, label-free, highly sensitive, specific, and responsive optical...
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Cancer causes one in six deaths worldwide, and 1.6 million cancer patients face annual out-of-pocket medical expenditures. In response to these, portable, label-free, highly sensitive, specific, and responsive optical biosensors are under development. Therefore, in this review, the recent advances, advantages, performance analysis, and current challenges associated with the fabrication of plasmonic biosensors, photonic crystals, and the hybridization of both for cancer diagnosis are assessed. The primary focus is on the development of biosensors that combine different shapes, sizes, and optical properties of metallic and dielectric nanoparticles with various coupling techniques. The latter part discusses the challenges and prospects of developing effective biosensors for early cancer diagnosis using dielectric and metallic nanoparticles. These data will help the audience advance research and development of next-generation plasmonic biosensors for effective cancer diagnosis. Cancer causes one in six deaths worldwide, and 1.6 million cancer patients face annual out-of-pocket medical expenditures.
X-ray photoelectron spectroscopy(XPS)is an important characterization tool in the pursuit of controllable fluorination of two-dimensional hexagonal boron nitride(h-BN).However,there is a lack of clear spectral interpr...
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X-ray photoelectron spectroscopy(XPS)is an important characterization tool in the pursuit of controllable fluorination of two-dimensional hexagonal boron nitride(h-BN).However,there is a lack of clear spectral interpretation,and seemingly conflicting measurements *** discern the structure−spectroscopy relation,we performed a comprehensive first-principles study on the boron 1s edge XPS of fluorinated h-BN(F-BN)*** gradually introducing 1−6 fluorine atoms into different boron or nitrogen sites,we created various F-BN structures with doping ratios ranging from 1 to 6%.Our calculations reveal that fluorines landed at boron or nitrogen sites exert competitive effects on the B 1s binding energies(BEs),leading to red or blue shifts in different *** calculations affirmed the hypothesis that fluorination affects 1s BEs of all borons in theπ-conjugated system,opposing the transferability from h-BN to ***,we observe that BE generally increases with higher fluorine concentration when both borons and nitrogens are nonexclusively *** findings provide critical insights into how fluorination affects boron’s 1s BEs,contributing to a better understanding of fluorination functionalization processes in h-BN and its potential applications in materials science.
We investigated spinel chalcogenides HgLa_(2)(S/Se)_(4)by using density function theory,and scrutinized the structural,optical,electrical,mechanical and thermoelectric transport characteristics of HgLa_(2)(S/Se)_(4)sp...
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We investigated spinel chalcogenides HgLa_(2)(S/Se)_(4)by using density function theory,and scrutinized the structural,optical,electrical,mechanical and thermoelectric transport characteristics of HgLa_(2)(S/Se)_(4)spinel *** enthalpy of formation,energy of cohesion,and energy volume optimum plots were used to obtain the stability as well as the perfect ground state of these *** ductility of these materials was the best illustrated with the help of Poisson's and Pugh's *** band gap results were obtained using Trans and Blaha modified Becke-Johanson potential(TB-mBJ).Both the materials present semi-conducting nature with direct band gap equal to 1.449 and 0.892 eV respectively for HgLa_(2)S_(4)and HgLa_(2)Se_(4).Calculations were also made for optical characteristics with the values of dielectric function,absorption coefficient,optical conductivity,reflectivity,and refractive *** to the findings,both of these materials are suitable for infrared optoelectronic *** materials were found to have promising optoelectronic and thermoelectric applications after their optical properties and transport aspects were *** tiny levels of temperature conductivities,substantial am ounts of power conductivities,the figure of merit(more than unity),as well as Seebecs coefficients all point to the potential use of both the materials in thermoelectric power generators.
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