Showing 1,861 - 1,880 results of 2,410 for search '"quantum"', query time: 0.07s Refine Results
  1. 1861

    One-Dimensional SnO2 Nanostructures: Synthesis and Applications by Jun Pan, Hao Shen, Sanjay Mathur

    Published 2012-01-01
    “…Nanoscale semiconducting materials such as quantum dots (0-dimensional) and one-dimensional (1D) structures, like nanowires, nanobelts, and nanotubes, have gained tremendous attention within the past decade. …”
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  2. 1862

    Integrated Study of the Dinitrobenzene Electroreduction Mechanism by Electroanalytical and Computational Methods by Andrey S. Mendkovich, Mikhail A. Syroeshkin, Ludmila V. Mikhalchenko, Mikhail N. Mikhailov, Alexander I. Rusakov, Vadim P. Gul'tyai

    Published 2011-01-01
    “…Electroreduction of 1,2-, 1,3-, and 1,4-dinitrobenzenes in DMF has been investigated by a set of experimental (cyclic voltammetry, chronoamperometry, and controlled potential electrolysis) and theoretical methods (digital simulation and quantum chemical calculations). The transformation of only one nitro group is observed in the presence of proton donors. …”
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  3. 1863

    Hardness of (Semiuniform) MLWE with Short Distributions Using the Rényi Divergence by Wenjuan Jia, Baocang Wang

    Published 2023-01-01
    “…The module learning with errors (MLWE) problem has attracted considerable attention for its tradeoff between security and efficiency. The quantum/classical worst-case to average-case hardness for the MLWE problem (or more exactly, a family of problems) has been established, but most of the known results require the seed distribution to be the uniform distribution. …”
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  4. 1864

    Pulse detection sensor with green light transceiver integrated optoelectronic chip by Chenchen ZHANG, Xumin GAO, Ziqi YE, Mingming BO, Zefeng HU, Yongjin WANG

    Published 2023-06-01
    “…Photo plethysmo graphy (PPG) is widely used to detect heart rate and pulse activity due to its simple design, low cost, and signal cycle that can effectively reflect the heart rhythm.Owing to the partial overlap between the emission and the detection spectra of GaN multiple quantum well (MQW) diode, the MQW receiver can respond to the light emitted from the transmitter sharing identical MQW structures.Thus, the fabricate and characterize monolithic integration of GaN transmitter and receiver was proposed as a single unit onto a conventional GaN-on-sapphire platform.This not only can effectively reduce the size and cost of the device, but also fully improves the sensitivity of the system.The experimental results show that the gallium nitride integrated optoelectronic chip can effectively receive the reflected light modulated by the heart pulse.Combined with circuit processing, the tester’s heart rate and pulse beat frequency can be calculated according to the restored PPG signal, so as to play the role of detection and warning.…”
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  5. 1865

    Geometrical Applications of Split Octonions by Merab Gogberashvili, Otari Sakhelashvili

    Published 2015-01-01
    “…It is shown how the G2 algebra’s chirality yields an intrinsic left-right asymmetry of a certain 3-vector (spin), as well as a parity violating effect on light emitted by a moving quantum system. Elementary particles are connected with the special elements of the algebra which nullify octonionic intervals. …”
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  6. 1866

    Dimuon and ditau production in photon-photon collisions at next-to-leading order in QED by Hua-Sheng Shao, David d’Enterria

    Published 2025-02-01
    “…Abstract Next-to-leading-order (NLO) quantum electrodynamics (QED) corrections to the production of muon and tau pairs in photon-photon collisions, γγ → μ + μ − , τ + τ − , are calculated in the equivalent photon approximation. …”
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  7. 1867

    Research on indoor THz channel reflection and transmission characteristics for integrated sensing and communication by LIAO Xi, LIN Changxi, ZHENG Xiangquan, WANG Yang, LIN Feng, CHEN Qianbin

    Published 2024-09-01
    “…Measurement campaigns were carried out on seven indoor materials at 130~134 GHz using a vector network analyzer-based measurement platform, and the frequency dependence and incidence angle dependence of the terahertz channel reflection and transmission characteristics were analyzed, which were compared with the measurement results at 282~290 GHz, to have the reflection loss characteristics in the two frequency bands revealed. A quantum particle swarm optimization algorithm was used to extract the material electromagnetic parameters, and a joint frequency-incidence angle model of the reflection coefficient was proposed. …”
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  8. 1868

    Measuring. Monitoring. Management. Control by F.G. Agayev, H.H. Asadov, M.E. Omarov, S.S. Aliyeva

    Published 2024-12-01
    “…The optimization made it possible to determine the worst-case model dependence L = L(φ), where L is the distance between the lidar and the tree; φ is the quantum yield of the fluorescent signal, which leads to the smallest value of the measured average integral value of the fluorescence signal. …”
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  9. 1869

    Influence of Lorentz Invariation Violation on Arbitrary Spin Fermion Tunneling Radiation in the Vaidya-Bonner Space-Time by Jie Zhang, Zhie Liu, Bei Sha, Xia Tan, Yuzhen Liu, Shuzheng Yang

    Published 2020-01-01
    “…Considering a light dispersion relationship derived from string theory, quantum gravitational theory, and the Rarita-Schwinger equation in the nonstationary spherical symmetry space-time, we derive an accurately modified dynamic equation for fermions with arbitrary spin. …”
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  10. 1870

    Recent Progress in Nanobiosensors for Precise Detection of Blood Glucose Level by Haniye Khosravi Ardakani, Mitra Gerami, Mostafa Chashmpoosh, Navid Omidifar, Ahmad Gholami

    Published 2022-01-01
    “…We begin with a definition of biosensors and their classification and basis, and then we examine the latest biosensors in glucose detection and new biosensors applications, including the artificial pancreas and updating quantum graphene data.…”
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  11. 1871

    Hawking Radiation-Quasinormal Modes Correspondence for Large AdS Black Holes by Dao-Quan Sun, Zi-Liang Wang, Miao He, Xian-Ru Hu, Jian-Bo Deng

    Published 2017-01-01
    “…Then we get the formulas of the Bekenstein-Hawking entropy and the horizon’s area quantization with functions of the quantum “overtone” number n.…”
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  12. 1872

    Fluorescence of 4- and 5-nitro isocarbostyryl derivatives revisited by Liudmyla Chepeleva, Andrey Doroshenko

    Published 2022-09-01
    “…UV-vis spectra of the title compounds were studied previously both experimentally and theoretically, however, on the quite low level of quantum theory (π-electronic approximation). The aim of the current communication is to reconsider them on DFT/TDDFT level with the account of the nπ* states localized on NO2-group spin-orbit coupling analyses and radiationless intersystem crossing (ISC) process, which regulates the fluorescent properties of nitro-substituted aromatic compounds. …”
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  13. 1873

    Exact Solutions of the Generalized ZK and Gardner Equations by Extended Generalized G′/G-Expansion Method by Sanjaya K. Mohanty, Apul N. Dev, Soubhagya Kumar Sahoo, Homan Emadifar, Geeta Arora

    Published 2023-01-01
    “…The generalized ZK equation and the Gardner equation govern the behavior of nonlinear wave phenomena in the presence of magnetic field in plasma dynamics, turbulence, bottom topography, and quantum field theory. We construct innovative solutions to the models under consideration using various computing tools and a recently developed extended generalized G′/G expansion technique. …”
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  14. 1874

    A holographic perspective on the axion quality problem by Peter Cox, Tony Gherghetta, Minh D. Nguyen

    Published 2020-01-01
    “…However, the axion solution relies on the spontaneous breaking of a global U(1)PQ symmetry, which is also explicitly violated by quantum gravity. To preserve the axion solution, gravitational violations of the U(1)PQ symmetry must be suppressed to sufficiently high order. …”
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  15. 1875

    Enumerating 6D supergravities with T ≤ 1 by Yuta Hamada, Gregory J. Loges

    Published 2024-12-01
    “…We also study which and how many models in this ensemble satisfy several UV and swampland bounds which have been proposed and previously utilized to great effect, finding that none are ruled out for T = 0 and ≈ 50% are inconsistent with quantum gravity for T = 1.…”
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  16. 1876
  17. 1877

    Testing the lepton content of the proton at HERA and EIC by Leandro Da Rold, Anibal D. Medina, Subhojit Roy, Carlos E. M. Wagner

    Published 2025-01-01
    “…Abstract Although protons are baryons with an overall vanishing lepton number, they possess a non-trivial leptonic content arising from quantum fluctuations which can be described by lepton parton distribution functions (PDFs) of the proton. …”
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  18. 1878

    Surface operators and exact holography by Changha Choi, Jaume Gomis, Raquel Izquierdo García

    Published 2024-12-01
    “…Surprisingly, in spite of these observables receiving nontrivial quantum corrections, we find that these correlation functions are exactly captured in the ’t Hooft limit by supergravity in asymptotically AdS 5 × S 5 [1] ! …”
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  19. 1879

    Dynamics of a two-qubit Tavis-Cummings model in the presence of an Ising-type interaction between qubits by E.K. Bashkirov

    Published 2024-08-01
    “…Based on the exact solution of the quantum Liouville equation, we found the density matrix of the system under consideration. …”
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  20. 1880

    Necklacelike Pattern of Vortex Bound States by Zhiyong Hou, Kailun Chen, Wenshan Hong, Da Wang, Wen Duan, Huan Yang, Shiliang Li, Huiqian Luo, Qiang-Hua Wang, Tao Xiang, Hai-Hu Wen

    Published 2025-02-01
    “…Our results not only disclose a novel vortex structure, but also unravel a completely new quantum phenomenon in the superconducting condensate.…”
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