Results 101 to 110 of about 436,258 (285)

Correlators of long strings on AdS3×S3×T4

Journal of High Energy Physics
In this work, we calculate correlators of long strings on AdS3×S3×T4 with pure NS-NS flux. We first construct physical vertex operators that correspond to long strings. Due to the GSO projection, they depend on the parity of the spectral flow parameter w.
Zhe-fei Yu, Cheng Peng
doaj   +1 more source

Geometric Aspects of Confining Strings

, 1998
Confining strings in 4D are effective, thick strings describing the confinement phase of compact U(1) and, possibly, also non-Abelian gauge fields. We show that these strings are dual to the gauge fields, inasmuch as their perturbative regime corresponds
Braaten, Braaten, Cardy, Carlo A. Trugenberger, David, David, Diamantini, Durhuus, Durhuus, Gradstheyn, Green, Kalb, Kleinert, Kleinert, M.Cristina Diamantini, Ogievetsky, Olesen, Orland, Polchinski, Polchinski, Polchinski, Polyakov, Polyakov, Polyakov, Quevedo, Witten, Zinn-Justin   +26 more
core   +3 more sources

Data‐Driven Discovery of Quaternary Ammonium Interlayers for Efficient and Thermally Stable Perovskite Solar Cells

Advanced Materials, EarlyView.
An active learning framework, grounded in independently generated in‐house experimental data, enables reliable discovery of high‐performance interfacial materials for perovskite solar cells. Iterative model refinement autonomously converges toward structurally robust quaternary ammonium architectures, establishing a new design principle for interfacial
Jongbeom Kim, Yang Jeong Park, Chaehoon Jeon, Nahye Shin, Jaewang Park, Seungun Lee, Jino Im, Sungroh Yoon, Sang Il Seok   +8 more
wiley   +1 more source

Segmented strings coupled to a B-field

Journal of High Energy Physics, 2018
In this paper we study segmented strings in AdS3 coupled to a background two-form whose field strength is proportional to the volume form. By changing the coupling, the theory interpolates between the Nambu-Goto string and the SL(2, ℝ) Wess-Zumino-Witten
David Vegh
doaj   +1 more source

$LCSk$++: Practical similarity metric for long strings

, 2014
In this paper we present $LCSk$++: a new metric for measuring the similarity of long strings, and provide an algorithm for its efficient computation. With ever increasing size of strings occuring in practice, e.g. large genomes of plants and animals, classic algorithms such as Longest Common Subsequence (LCS) fail due to demanding computational ...
Pavetić, Filip, Žužić, Goran, Šikić, Mile   +2 more
openaire   +2 more sources

Recent Advances in Electrospun Nanofibers for Triboelectric Nanogenerators: Performance Enhancement Strategies and Emerging Applications

Advanced Materials, EarlyView.
This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi, Jee Hwan Ahn, Duy Linh Vu, Kyoung Kwan Ahn   +3 more
wiley   +1 more source

Long strings condensation and FZZT branes

, 2005
We propose a matrix model description of extended D-branes in 2D noncritical ...
openaire   +2 more sources

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

Advanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald, Hiroki Tomita, Giacomo Cotelli, Louka L. Brüll, Nanno G. de Rooij, Lucas R.L. Norg, Milo Clément, Reinder Coehoorn   +7 more
wiley   +1 more source

Lagrangian evolution of global strings

, 2002
We establish a method to trace the Lagrangian evolution of extended objects consisting of a multicomponent scalar field in terms of a numerical calculation of field equations in three dimensional Eulerian meshes.
A. Albrecht, A. Albrecht, A. Vilenkin, B. Allen, C. Baüerle, C.J.A.P. Martins, D.P. Bennett, D.P. Bennett, D.P. Bennett, D.P. Bennett, E. Witten, E.T. Vishniac, F. Lund, G.R. Vincent, G.R. Vincent, J. Preskill, J. Yokoyama, J. Yokoyama, J.N. Moore, Jun’ichi Yokoyama, L.A. Kofman, M. Barriola, M. Kalb, M. Yamaguchi, M. Yamaguchi, M. Yamaguchi, M. Yamaguchi, M. Yamaguchi, M.E. Dodd, Masahide Yamaguchi, P. de Bernardis, P.C. Hendrey, Q. Shafi, R. Stompor, R.D. Peccei, R.L. Davis, R.L. Davis, S. Coleman, T. Goto, T. Vachaspati, T.W.B. Kibble, T.W.B. Kibble, U. Pen, V.L. Ginzburg, V.M.H. Ruutu, V.M.H. Ruutu, W.H. Zurek, W.H. Zurek   +47 more
core   +1 more source

Evolution of Materials and Device Stacks for HfO2‐Based Ferroelectric Memories

Advanced Materials Interfaces, EarlyView.
This review summarizes engineering strategies for HfO2 based ferroelectric memories with focus on FeCAP and FeFET structures. It describes how dopant design, stress effects, and interface engineering improve the bulk ferroelectric response. It further discusses how channel engineering supports reliable memory characteristics and scalable integration ...
Eunjin Kim, Jiyong Woo
wiley   +1 more source