Results 61 to 70 of about 89,289 (300)

Quantum Gravitational Effects and Grand Unification [PDF]

, 2008
In grand unified theories with large numbers of fields, renormalization effects significantly modify the scale at which quantum gravity becomes strong.
David Reeb, Deog Ki Hong, Pyungwon Ko, Stephen D. H. Hsu, Xavier Calmet   +4 more
core   +3 more sources

Ab Initio Study on 3D Anisotropic Ferroelectric Switching Mechanism and Coercive Field in HfO2 and ZrO2

Advanced Functional Materials, EarlyView.
This study uncovers a new switching mechanism in HfO2 and ZrO2, where the absence of a non‐polar layer along the a‐direction induces interaction between polar layers. Consequently, the switching barriers for growth are lower than those for nucleation in this direction, leading to a size‐dependent coercive field that matches experimental observations ...
Kun Hee Ye, Taeyoung Jeong, Seungjae Yoon, Dohyun Kim, Yunjae Kim, Cheol Seong Hwang, Jung‐Hae Choi   +6 more
wiley   +1 more source

Color confinement and Bose-Einstein condensation

Journal of High Energy Physics, 2021
We propose a unified description of two important phenomena: color confinement in large-N gauge theory, and Bose-Einstein condensation (BEC). We focus on the confinement/deconfinement transition characterized by the increase of the entropy from N 0 to N ...
Masanori Hanada, Hidehiko Shimada, Nico Wintergerst   +2 more
doaj   +1 more source

Leggett-Garg macrorealism and the quantum nondisturbance conditions

, 2019
We investigate the relation between a refined version of Leggett and Garg conditions for macrorealism, namely the no-signaling-in-time (NSIT) conditions, and the quantum mechanical notion of nondisturbance between measurements.
Budroni, Costantino, Uola, Roope, Vitagliano, Giuseppe   +2 more
core   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Unification of the General Non-Linear Sigma Model and the Virasoro Master Equation [PDF]

, 1997
The Virasoro master equation describes a large set of conformal field theories known as the affine-Virasoro constructions, in the operator algebra (affine Lie algebra) of the WZW model, while the Einstein equations of the general non-linear sigma model ...
de Boer, J., Halpern, M. B.
core   +2 more sources

Higher Spin Gauge Theories in Various Dimensions

, 2004
Properties of nonlinear higher spin gauge theories of totally symmetric massless higher spin fields in anti-de Sitter space of any dimension are discussed with the emphasize on the general aspects of the approach.Comment: LaTeX, 20 pages, Unified version
Vasiliev, M. A.
core   +4 more sources

Gauge Unification in Extra Dimensions: Power Corrections vs. Higher-Dimension Operators [PDF]

, 2004
Power-like loop corrections to gauge couplings are a generic feature of higher-dimensional field theories. In supersymmetric grand unified theories in d=5 dimensions, such corrections arise only in the presence of a vacuum expectation value of the ...
A. Hebecker, A. Westphal, Agashe, Agashe, Agashe, Altarelli, Alvarez, Alvarez-Gaume, Alvarez-Gaume, Alvarez-Gaume, Alvarez-Gaume, Antoniadis, Antoniadis, Antoniadis, Arkani-Hamed, Arkani-Hamed, Arkani-Hamed, Arkani-Hamed, Arkani-Hamed, Asaka, Asaka, Asaka, Asaka, Bachas, Barbieri, Binétruy, Callan, Candelas, Chang, Chankowski, Choi, Contino, Contino, de Wit, Dienes, Dienes, Dienes, Dimopoulos, Dimopoulos, Dixon, Dixon, Dixon, Dudas, Fayet, Frampton, Fritzsch, Ganor, Georgi, Georgi, Georgi, Georgi, Georgi, Ghilencea, Ghilencea, Ghilencea, Ghilencea, Ghilencea, Ghilencea, Gies, Goldberger, Goldberger, Gradshteyn, Green, Grimm, Groot Nibbelink, Gunaydin, Hall, Hall, Hall, Hall, Hall, Hall, Hebecker, Hebecker, Hebecker, Hebecker, Hebecker, Hebecker, Hosotani, Hosotani, Ibanez, Intriligator, Intriligator, Iqbal, Jackiw, Kaplan, Kaplan, Kaplunovsky, Kaplunovsky, Kawamura, Kawamura, Kazakov, Krasnikov, Lanzagorta, Lee, Llewellyn Smith, Lopes Cardoso, Lopes Cardoso, Lykken, Marti, Marti, Maru, Mayr, Mayr, Nomura, Oliver, Paccetti Correia, Pati, Pati, Peskin, Randall, Reuter, Roberts, Schellekens, Scrucca, Scrucca, Seiberg, Seiberg, Seiberg, Seiberg, Slansky, Strathdee, Taylor, van Ritbergen, von Gersdorff, Watari, Weinberg, Witten, Witten, Wolfram   +129 more
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Lattice gauge tensor networks

New Journal of Physics, 2014
We present a unified framework to describe lattice gauge theories by means of tensor networks: this framework is efficient as it exploits the high local symmetry content native to these systems by describing only the gauge invariant subspace. Compared to
Pietro Silvi, Enrique Rico, Tommaso Calarco, Simone Montangero   +3 more
doaj   +1 more source