Results 11 to 20 of about 490,296 (313)
One loop tadpole in heterotic string field theory
Journal of High Energy Physics, 2017 We compute the off-shell 1-loop tadpole amplitude in heterotic string field theory. With a special choice of cubic vertex, we show that this amplitude can be computed exactly.
Theodore Erler +2 more
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Mapping fiber, loop and suspension graphs in naive discrete homotopy theory [PDF]
Discrete homotopy theory or A-homotopy theory is a combinatorial homotopy theory defined on graphs, simplicial complexes, and metric spaces, reflecting information about their connectivity. The present paper aims to further understand the (non-)similarities between the A-homotopy and ordinary homotopy theories through explicit constructions.
So Yamagata
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Learning about Quantum Gravity with a Couple of Nodes [PDF]
Symmetry, Integrability and Geometry: Methods and Applications, 2012 Loop Quantum Gravity provides a natural truncation of the infinite degrees of freedom of gravity, obtained by studying the theory on a given finite graph. We review this procedure and we present the construction of the canonical theory on a simple graph,
Enrique F. Borja +2 more
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Energies, 2021 In view of the aggravation of global pollution and greenhouse effects, fuel cell electric vehicles (FCEVs) have attracted increasing attention, owing to their ability to release zero emissions.
Ke Song +4 more
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Extracting Einstein from the loop-level double-copy [PDF]
Journal of High Energy Physics, 2021 The naive double-copy of (multi) loop amplitudes involving massive matter coupled to gauge theories will generically produce amplitudes in a gravitational theory that contains additional contributions from propagating antisymmetric tensor and dilaton ...
John Joseph M. Carrasco +1 more
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Supergravity limit of genus two modular graph functions in the worldline formalism
Physics Letters B, 2018 We consider the contributions up to the D10R4 terms in the low momentum expansion of the two loop four graviton amplitude in maximal supergravity that arise in the field theory limit of genus two modular graph functions that result from the low momentum ...
Anirban Basu
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Gauge Loop-String-Hadron Formulation on General Graphs and Applications to Fully Gauge Fixed Hamiltonian Lattice Gauge Theory [PDF]
23 pages, 37 pages of appendices, 27 Figures, 1 Table; v2: Added references, corrected ...
Ivan M. Burbano, C. Bauer
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Low momentum expansion of one loop amplitudes in heterotic string theory [PDF]
Journal of High Energy Physics, 2017 We consider the low momentum expansion of the four graviton and the two graviton-two gluon amplitudes in heterotic string theory at one loop in ten dimensions, and analyze contributions upto the D2ℛ4 $$ {D}^2{\mathrm{\mathcal{R}}}^4 $$ interaction from ...
Anirban Basu
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Consideration of communication in human–machine interaction for cooperative trajectory planning [PDF]
Frontiers in Robotics and AIInteractive human–machine systems aim to significantly enhance performance and reduce human workload by leveraging the combined strengths of humans and automated systems.
Julian Schneider +2 more
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Nuclear Physics B, 2015 We study the expectation value of a nonplanar Wilson graph operator in SL(2,C) Chern–Simons theory on S3. In particular we analyze its asymptotic behavior in the double-scaling limit in which both the representation labels and the Chern–Simons coupling ...
Hal M. Haggard +3 more
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