Results 71 to 80 of about 465,915 (347)

Background field method for nonlinear sigma models in nonrelativistic string theory

Journal of High Energy Physics, 2020
We continue the study of nonrelativistic string theory in background fields. Nonrelativistic string theory is described by a nonlinear sigma model that maps a relativistic worldsheet to a non-Lorentzian and non-Riemannian target space geometry, which is ...
Ziqi Yan, Matthew Yu
doaj   +1 more source

Field Theory Correlators and String Theory [PDF]

, 2005
It appears that string-M-theory is the only viable candidate for a complete theory of matter. It must therefore contain both gravity and QCD. What is particularly surprising is the recent conjecture that strongly coupled QCD matrix elements can be evaluated though a duality with weakly coupled gravity.
Stephen S. Pinsky, U. Trittmann, John R. Hiller   +2 more
openaire   +3 more sources

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +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 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

T-duality in nonrelativistic open string theory

Journal of High Energy Physics, 2021
Nonrelativistic open string theory is defined by a worldsheet theory that produces a Galilean invariant string spectrum and is described at low energies by a nonrelativistic Yang-Mills theory [1].
Jaume Gomis, Ziqi Yan, Matthew Yu
doaj   +1 more source

String field theory

, 2009
This elementary introduction to string field theory highlights the features and the limitations of this approach to quantum gravity as it is currently understood. String field theory is a formulation of string theory as a field theory in space-time with an infinite number of massive fields. Although existing constructions of string field theory require
openaire   +3 more sources

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Closed String Cohomology in Open String Field Theory

, 2010
We show that closed string states in bosonic string field theory are encoded in the cyclic cohomology of cubic open string field theory (OSFT) which, in turn, classifies the deformations of OSFT.
Moeller, Nicolas, Sachs, Ivo
core   +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