نتایج جستجو برای: tqc

تعداد نتایج: 67  

Journal: :Physical Review B 2021

The recently developed theory of topological quantum chemistry (TQC) has built a close connection between band representations in momentum space and orbital characters real space. It provides an effective way to diagnose materials, leading the discovery lots materials after screening all known nonmagnetic compounds. On other hand, it can also efficiently reveal spacial characters, including ave...

Journal: :Nature Reviews Materials 2021

Topological materials discovery has evolved at a rapid pace over the past 15 years following identification of first nonmagnetic topological insulators (TIs), crystalline (TCIs), and 3D semimetals (TSMs). Most recently, through complete analyses symmetry-allowed band structures - including theory Quantum Chemistry (TQC) researchers have determined crystal-symmetry-enhanced Wilson-loop symmetry-...

Journal: :Physical review 2021

The recently introduced topological quantum chemistry (TQC) framework has provided a description of universal properties all possible band insulators in space groups based on crystalline unitary symmetries and time reversal. While this formalism filled the gap between mathematical classification practical diagnosis materials, an obvious limitation is that it only applies to weakly interacting s...

Journal: :IEEE Transactions on Applied Superconductivity 2009

Journal: :Physical review 2022

According to topological quantum chemistry (TQC), a class of electronic materials has been called obstructed atomic insulators (OAIs), in which portion valence electrons necessarily have their centers located on some empty Wyckoff positions (WPs) without atom occupation the lattice. The obstruction centering these coinciding with host atoms is nontrivial and results metallic boundary states whe...

2012
Diego Carnevale Geoffrey Bodenhausen

0009-2614/$ see front matter 2012 Elsevier B.V. A doi:10.1016/j.cplett.2012.01.058 Abbreviations: CT, central transition; ST, satel quantum coherence; TQC, triple-quantum coherence. ⇑ Corresponding author. E-mail address: [email protected] (D. Carne Composite pulses of the type ðspÞxð2spÞ xð3spÞx allow one to excite the central transition of nuclei with half-integer spin with enhanced eff...

2014
M. Pitkänen

1. The key feature of negentropic entanglement is that density matrix is proportional to unit matrix so that the assumption that state function reduction corresponds to the measurement of density matrix does not imply state function reduction to one-dimensional sub-space. This special kind of degenerate density matrix emerges naturally for the hierarchy heff = nh interpreted in terms of a hiera...

1992
Lauri Koskela

The background and development of the new production philosophy are presented. The conceptual basis of the traditional and the new production philosophies, as applied in manufacturing, are examined. The traditional conceptual basis of construction is criticized, and an initial new interpretation of construction is given based on the new philosophy. Finally, the challenges of implementing the ne...

Journal: :JEA17: Jurnal Ekonomi Akuntansi 2021

The research entitled Effect of Total Quality Control and Just In Time on improving product quality cost efficiency aims to analyze the effect (TQC) (JIT) efficiency. This was conducted at one manufacturing companies in Surabaya, namely UD. Sukri Dana Abadi. study used descriptive qualitative method. type data this is primary where researchers obtain through direct collection efforts. Methods d...

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