Results 71 to 80 of about 3,208,584 (371)

Symmetry Principles for String Theory

, 1994
The gauge symmetries that underlie string theory arise from inner automorphisms of the algebra of observables of the associated conformal field theory. In this way it is possible to study broken and unbroken symmetries on the same footing, and exhibit an
M. Evans, M. Evans, M. Evans, M. Evans, M. Evans, T. Banks   +5 more
core   +1 more source

The analytic theory of algebraic numbers [PDF]

Bulletin of the American Mathematical Society, 1975
1. The basics of algebraic number theory. An algebraic number field is a field K = Q(a) where a is a zero of an irreducible (over Q) polynomial f(x) with integral coefficients. The degree of K, which we denote by n = n(K) = [K:Q], is the degree of ƒ(%). We write the roots of /(x) = 0 as a, a, • • • ,a ( n ) m such a way that for l^j^r1 = r1(K), a Q) is
openaire   +3 more sources

Lorentzian Lie (3-)algebra and toroidal compactification of M/string theory [PDF]

, 2009
We construct a class of Lie 3-algebras with an arbitrary number of pairs of generators with Lorentzian signature metric. Some examples are given and corresponding BLG models are studied.
P. Ho, Y. Matsuo, Shotaro Shiba
semanticscholar   +1 more source

Soft‐Layered Composites with Wrinkling‐Activated Multi‐Linear Elastic Behavior, Stress Mitigation, and Enhanced Strain Energy Storage

Advanced Engineering Materials, EarlyView.
In this study, exciting new bi‐/multi‐linear elastic behavior of soft elastic composites that accompany the activation of wrinkling in the embedded interfacial layers is analyzed. The new features and performance of these composite materials, including dramatic enhancements in energy storage, can be tailored by the concentration of interfacial layers ...
Narges Kaynia, Nicholas Xuanlai Fang, Mary C. Boyce   +2 more
wiley   +1 more source

Spacetime Virasoro algebra from strings on zero radius AdS_3

, 2003
We study bosonic string theory in the light-cone gauge on AdS_3 spacetime with zero radius of curvature (in string units) R/\sqrt{\alpha^\prime}=0. We find that the worldsheet theory admits an infinite number of conserved quantities which are naturally ...
A. Clark, A. Dhar, A. Giveon, A. Karch, C.O. Lousto, D. Kutasov, G. Bonelli, J. de Boer, J. Polchinski, J. Troost, J.D. Brown, J.M. Maldacena, M. Bañados, M. Bianchi, N.V. Suryanarayana, Paul de Medeiros, S. Prem Kumar, U. Lindström   +17 more
core   +1 more source

Advancement in Colloidal Metasurfaces: Approaches for Scalable Photonic Devices

Advanced Materials Interfaces, EarlyView.
This perspective explores colloidal metasurfaces composed of plasmonic and emitting nanoparticles assembled by laser interference lithography and template‐assisted self‐assembly methods. Precise design strategies achieve directional emission, low‐threshold lasing, and tunable photonic bandgaps.
Sezer Seçkin, Swagato Sarkar, Tobias A.F. König   +2 more
wiley   +1 more source

Kac-Moody Symmetries of Ten-dimensional Non-maximal Supergravity Theories

, 2004
A description of the bosonic sector of ten-dimensional N=1 supergravity as a non-linear realisation is given. We show that if a suitable extension of this theory were invariant under a Kac-Moody algebra, then this algebra would have to contain a rank ...
A. Barut, A. Chattaraputi, A. Kleinschmidt, A.H. Chamseddine, E. Bergshoeff, F. Englert, F. Englert, F. Englert, F. Englert, F. Giani, I. Schnakenburg, I. Schnakenburg, Igor Schnakenburg, L. Alvarez-Gaumé, L. Motl, M. Huq, M. Huq, N.A. Obers, P. West, P.C. West, P.C. West, Peter West, T. Banks   +22 more
core   +2 more sources

Enhancing the Efficiency of Polariton OLEDs in and Beyond the Single‐Excitation Subspace

Advanced Optical Materials, EarlyView.
Organic light‐emitting diodes (OLEDs) are transforming lighting with eco‐friendly manufacturing and flexible applications. However, since 75 % of excited states (triplets) are non‐emissive, recent research has focused on triplet harvesting. This work proposes a predictive polariton‐based model, exploring conditions for OLED enhancement and showing that
Olli Siltanen, Kimmo Luoma, Andrew J. Musser, Konstantinos S. Daskalakis   +3 more
wiley   +1 more source

Modeling net ecosystem carbon balance and loss in coastal wetlands exposed to sea‐level rise and saltwater intrusion

Ecological Applications, Volume 32, Issue 8, December 2022., 2022
Abstract Coastal wetlands are globally important stores of carbon (C). However, accelerated sea‐level rise (SLR), increased saltwater intrusion, and modified freshwater discharge can contribute to the collapse of peat marshes, converting coastal peatlands into open water.
Khandker S. Ishtiaq, Tiffany G. Troxler, Lukas Lamb‐Wotton, Benjamin J. Wilson, Sean P. Charles, Stephen E. Davis, John S. Kominoski, David T. Rudnick, Fred H. Sklar   +8 more
wiley   +1 more source

Injective hulls of many-sorted ordered algebras

Open Mathematics, 2019
This paper is devoted to the study of injectivity for ordered universal algebras. We first characterize injectives in the category OALΣ⩽$\begin{array}{} \displaystyle {\mathsf{OAL}_{{\it\Sigma}}^{\leqslant}} \end{array}$ of ordered Σ-algebras with lax ...
Zhang Xia, Ma Wen, Rump Wolfgang
doaj   +1 more source