Results 81 to 90 of about 458,083 (347)

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

Boundary modes in string field theory

Journal of High Energy Physics
We discuss the construction of boundary contributions to free string field theory actions in the context of the bosonic string. We show that it is generally possible to obtain a well-defined variational principle by adding a simple boundary term (which ...
Carlo Maccaferri, Riccardo Poletti, Alberto Ruffino, Jakub Vošmera   +3 more
doaj   +1 more source

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

Closed String Amplitudes from Gauge Fixed String Field Theory [PDF]

, 2002
Closed string diagrams are derived from cubic open string field theory using a gauge fixed kinetic operator. The basic idea is to use a string propagator that does not generate a boundary to the world sheet.
A. Hashimoto, A. Sen, A. Sen, B. Zwiebach, B. Zwiebach, B. Zwiebach, E. Witten, G. Moore, I. Kishimoto, J.A. Shapiro, J.A. Shapiro, K. Itoh, N. Moeller, Nadav Drukker, S.B. Giddings, S.B. Giddings, T. Banks, T. Takahashi, V.A. Kostelecky, W. Siegel, W. Siegel, W. Siegel   +21 more
core   +2 more sources

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 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

String field theory solution for any open string background. Part II

Journal of High Energy Physics, 2020
Generalizing previous work, we give a new analytic solution in Witten’s open bosonic string field theory which can describe any open string background. The central idea is to use Riemann surface degenerations as a mechanism for taming OPE singularities ...
Theodore Erler, Carlo Maccaferri
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

Closed Strings Tachyons and Non-Commutative Instabilities [PDF]

, 2003
We observe a relation between closed strings tachyons and one-loop instabilities in non-supersymmetric non-commutative gauge theories. In particular we analyze the spectra of type IIB string theory on C^3/Z_N orbifold singularities and the non ...
A. Adams, A. Armoni, A. Matusis, A. Sen, Adi Armoni, Angel M Uranga, D.J. Gross, Esperanza López, G. Arcioni, J.R. David, K. Landsteiner, K. Murakami, M. Van Raamsdonk, M.R. Douglas, N. Seiberg, R.J. Szabo, S. Doplicher, S. Minwalla, S.R. Das, Z. Guralnik   +19 more
core   +2 more sources

Artificial Intelligence‐Driven Development in Rechargeable Battery Materials: Progress, Challenges, and Future Perspectives

Advanced Functional Materials, EarlyView.
AI is transforming the research paradigm of battery materials and reshaping the entire landscape of battery technology. This comprehensive review summarizes the cutting‐edge applications of AI in the advancement of battery materials, underscores the critical challenges faced in harnessing the full potential of AI, and proposes strategic guidance for ...
Qingyun Hu, Junyuan Lu, Jian Hui, Ziyuan Rao, Yang Ren, Hong Wang   +5 more
wiley   +1 more source