Results 81 to 90 of about 475,776 (345)

BRST ghost-vertex operator in Witten's cubic open string field theory on multiple Dp-branes

Nuclear Physics B, 2022
The Becchi–Rouet–Stora–Tyutin (BRST) ghost field is a key element in constructing Witten's cubic open string field theory. However, to date, the ghost sector of the string field theory has not received a great deal of attention. In this study, we address
Taejin Lee
doaj   +1 more source

4D Mapping of ZIF Biocomposites for High Protein Loading and Tunable Release Profiles

Advanced Functional Materials, EarlyView.
Systematic four‐dimensional mapping of zeolitic imidazolate framework biocomposites reveals how precursor ratios, total concentration, and washing define crystalline phase, protein loading, and release kinetics. This comprehensive study identifies conditions yielding record loading (∼85%) and precise phase–property correlations.
Michael R. Hafner, Francesco Carraro, Behnaz Abbasgholi‐NA, Simone Dal Zilio, Max Schmallegger, Helmar Wiltsche, Lingcong Ge, Michael R. Reithofer, Efwita Astria, Laura Villanova, Heinz Amenitsch, Christian Doonan, Paolo Falcaro   +12 more
wiley   +1 more source

Boundary terms in string field theory

Journal of High Energy Physics
We supplement the string field theory action with boundary terms to make its variational principle well-posed. Central to our considerations is the violation of the stress-energy tensor conservation in non-compact CFTs due to the boundary terms.
Atakan Hilmi Fırat, Raji Ashenafi Mamade   +1 more
doaj   +1 more source

Cubic Twistorial String Field Theory

, 2004
Witten has recently proposed a string theory in twistor space whose D-instanton contributions are conjectured to compute N=4 super-Yang-Mills scattering amplitudes.
A. Neitzke, B. Zwiebach, D. Gaiotto, E. Witten, E. Witten, E. Witten, F. Cachazo, G. Chalmers, Lubos Motl, M. Aganagic, N. Berkovits, Nathan Berkovits, R. Roiban, R. Roiban, R. Roiban, W. Siegel   +15 more
core   +1 more source

Marginal deformations in string field theory [PDF]

, 2007
We describe a method for obtaining analytic solutions corresponding to exact marginal deformations in open bosonic string field theory. For the photon marginal deformation we have an explicit analytic solution to all orders.
A. Iqbal, A. Sen, A. Sen, A. Sen, B. Zwiebach, E. Fuchs, E. Fuchs, E. Fuchs, Ehud Fuchs, F. Katsumata, H. Fuji, H.-T. Yang, I. Ellwood, I. Kishimoto, J. Kluson, J. Kluson, K. Furuuchi, L. Rastelli, L. Rastelli, L. Rastelli, M. Kiermaier, M. Schnabl, M. Schnabl, M. Schnabl, Michael Kroyter, Robertus Potting, T. Erler, T. Erler, T. Erler, T. Takahashi, Y. Okawa, Y. Okawa, Y. Okawa   +32 more
core   +3 more sources

Quenched string field theory [PDF]

Physics Letters B, 1988
Abstract We construct a toy model of Witten's open string field theory by truncating the Virasoro group to its SU(1,1) subgroup. The string field is given in terms of finite-dimensional matrices, which satisfy a non-trivial BRST cohomology. The string gauge group is found to be SO(3).
F. Jimenez, G. Sierra
openaire   +1 more source

Toughening β‐Ga2O3 via Mechanically Seeded Dislocations

Advanced Functional Materials, EarlyView.
β‐Ga2O3 is promising for next‐generation semiconductors but its brittleness limits flexible and high‐precision applications. Here, mechanically seeded dislocations introduced by surface deformation improved damage tolerance in (001) β‐Ga2O3. Nanoindentation and characterization show dislocations suppress cleavage cracks by enabling stable plastic ...
Zanlin Cheng, Jiawen Zhang, Peng Gao, Guosong Zeng, Xufei Fang, Wenjun Lu   +5 more
wiley   +1 more source

Artificial Intelligence as the Next Visionary in Liquid Crystal Research

Advanced Functional Materials, EarlyView.
The functions of AI in the research laboratory are becoming increasingly sophisticated, allowing the entire process of hypothesis formulation, material design, synthesis, experimental design, and reiterative testing to be automated. In our work, we conceive how the incorporation of AI in the laboratory environment will transform the role and ...
Mert O. Astam, Ouassim L'Karkouri, Danqing Liu   +2 more
wiley   +1 more source

Predictions for PP-wave string amplitudes from perturbative SYM [PDF]

, 2002
The role of general two-impurity multi-trace operators in the BMN correspondence is explored. Surprisingly, the anomalous dimensions of all two-impurity multi-trace BMN operators to order g_2^2\lambda' are completely determined in terms of single-trace ...
A. Santambrogio, C. Kristjansen, D. Berenstein, D. Vaman, D.J. Gross, H. Verlinde, I.S. Gradshteyn, J. Gomis, J. Pearson, J.-G. Zhou, M. Spradlin, M.-X. Huang, N. Beisert, N.R. Constable, N.R. Constable, R. Roiban, U. Gürsoy, Umut Gürsoy, W. Skiba   +18 more
core   +2 more sources

Genus-one string amplitudes from conformal field theory

Journal of High Energy Physics, 2019
We explore and exploit the relation between non-planar correlators in N $$ \mathcal{N} $$ = 4 super-Yang-Mills, and higher-genus closed string amplitudes in type IIB string theory.
Luis F. Alday, Agnese Bissi, Eric Perlmutter   +2 more
doaj   +1 more source