Results 91 to 100 of about 876,408 (341)
The flavor transition process b → sγ in the U(1)XSSM with the mass insertion approximation
Nuclear Physics BPeople extend the MSSM with the local gauge group U(1)X to obtain the U(1)XSSM. In the framework of the U(1)XSSM, we study the flavor transition process b→sγ with the mass insertion approximation (MIA).
Xin-Xin Long +7 more
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GKZ-hypergeometric systems for Feynman integrals
Nuclear Physics B, 2020 Basing on the systems of linear partial differential equations derived from Mellin-Barnes representations and Miller's transformation, we obtain GKZ-hypergeometric systems of one-loop self energy, one-loop triangle, two-loop vacuum, and two-loop sunset ...
Tai-Fu Feng +3 more
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Time in quantum mechanics and quantum field theory [PDF]
Journal of Physics A: Mathematical and General, 2003 20 ...
Wang, Z. Y., Chen, B., Xiong, C. D.
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Advanced Functional Materials, EarlyView.HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan +9 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Sub‐monolayer titania grafted onto mesoporous silica enables solvent‐free photocatalytic upgrading of furfural and cyclopentanone into jet fuel precursors. Advanced spectroscopic methods reveal tunable surface speciation, acidity, and bandgaps, enhancing catalytic efficiency.
Mark A. Isaacs +12 more
wiley +1 more source
Noninvertible gauge invariance in (2+1)d topological orders: a string-net model realization
Journal of High Energy PhysicsWe develop a systematic framework for understanding symmetries in topological phases in 2 + 1 dimensions using the string-net model, encompassing both gauge invariances that preserve anyon types and global symmetries permuting anyon types, including both
Yu Zhao, Yidun Wan
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Spin in Quantum Field Theory [PDF]
, 2007 I introduce spin in field theory by emphasizing the close connection between quantum field theory and quantum mechanics. First, I show that the spin-statistics connection can be derived in quantum mechanics without relativity or field theory. Then, I discuss path integrals for spin without using spinors.
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Homeopathy and Quantum Field Theory [PDF]
Complementary Medicine Research, 2006 Apart from Axiomatic Quantum Field Theory which is no longer as important as it was in the 1970s, Quantum Field Theory (QFT) is a general term for theories that describe interactions between particles. In many cases fundamentals of a QFT can be traced back to a combination of methods of classical Field Theory and/or Quantum Mechanics. Mostly Relativity
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Quantum field theory of geometry [PDF]
, 1999 Over the past five years, there has been significant progress on the problem of quantization of diffeomorphism covariant field theories with {\it local} degrees of freedom. The absence of a background space-time metric in these theories gives rise to a host of conceptual and technical difficulties because most of the familiar methods from axiomatic ...
Ashtekar, A., Lewandowski, J.
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Advanced Functional Materials, EarlyView.Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida +16 more
wiley +1 more source