scholarly journals Noncommutative Chern-Simons gauge and gravity theories and their geometric Seiberg-Witten map

2014 ◽  
Vol 2014 (11) ◽  
Author(s):  
Paolo Aschieri ◽  
Leonardo Castellani
Author(s):  
Eric A. Bergshoeff ◽  
Olaf Hohm ◽  
Wout Merbis ◽  
Alasdair J. Routh ◽  
Paul K. Townsend

Author(s):  
P. K. Concha ◽  
D. M. Peñafiel ◽  
E. K. Rodriguez ◽  
P. Salgado

2020 ◽  
Vol 29 (06) ◽  
pp. 2050040
Author(s):  
Ernesto Frodden ◽  
Diego Hidalgo

These notes provide a detailed catalog of surface charge formulas for different classes of gravity theories. The present catalog reviews and extends the existing literature on the topic. Part of the focus is on reviewing the method to compute quasi-local surface charges for gauge theories in order to clarify conceptual issues and their range of applicability. Many surface charge formulas for gravity theories are expressed in metric, tetrads-connection, Chern–Simons connection, and even BF variables. For most of them, the language of differential forms is exploited and contrasted with the more popular metric components language. The gravity theory is coupled with matter fields as scalar, Maxwell, Skyrme, Yang–Mills, and spinors. Furthermore, three examples with ready-to-download notebook codes, show the method in full action. Several new results are highlighted through the notes.


1991 ◽  
Vol 23 (4) ◽  
pp. 279-286
Author(s):  
Giuseppe Bonacina ◽  
Maurizio Martellini ◽  
Jeanette Nelson

2018 ◽  
Vol 934 ◽  
pp. 240-264 ◽  
Author(s):  
Ricardo Caroca ◽  
Patrick Concha ◽  
Octavio Fierro ◽  
Evelyn Rodríguez ◽  
Patricio Salgado-Rebolledo

1999 ◽  
Vol 09 (PR10) ◽  
pp. Pr10-223-Pr10-225
Author(s):  
S. Scheidl ◽  
B. Rosenow

2020 ◽  
Vol 2020 (9) ◽  
Author(s):  
Lara B. Anderson ◽  
James Gray ◽  
Andre Lukas ◽  
Juntao Wang

Abstract The superpotential in four-dimensional heterotic effective theories contains terms arising from holomorphic Chern-Simons invariants associated to the gauge and tangent bundles of the compactification geometry. These effects are crucial for a number of key features of the theory, including vacuum stability and moduli stabilization. Despite their importance, few tools exist in the literature to compute such effects in a given heterotic vacuum. In this work we present new techniques to explicitly determine holomorphic Chern-Simons invariants in heterotic string compactifications. The key technical ingredient in our computations are real bundle morphisms between the gauge and tangent bundles. We find that there are large classes of examples, beyond the standard embedding, where the Chern-Simons superpotential vanishes. We also provide explicit examples for non-flat bundles where it is non-vanishing and non-integer quantized, generalizing previous results for Wilson lines.


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