Auflistung nach Schlagwort "geometry"

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  • Gautason, Fridrik Freyr; Junghans, Daniel; Zagermann, Marco (New York, NY : Springer International Publishing, 2013)
    We show that the classical cosmological constant in type II flux compactifications can be written as a sum of terms from the action of localized sources plus a specific contribution from non-trivial background fluxes. ...
  • Ivanova, Tatiana A.; Lechtenfeld, Olaf; Popov, Alexander D.; Tormählen, Maike (Amsterdam : Elsevier Science BV, 2014)
    Recently, conformal field theories in six dimensions were discussed from the twistorial point of view. In particular, it was demonstrated that the twistor transform between chiral zero-rest-mass fields and cohomology classes ...
  • Bhatnagar, Akash; Roy Chaudhuri, Ayan; Kim, Young Heon; Hesse, Dietrich; Alexe, Marin (London : Nature Publishing Group, 2013)
    Recently, the anomalous photovoltaic (PV) effect in BiFeO 3 (BFO) thin films, which resulted in open circuit voltages (V oc) considerably larger than the band gap of the material, has generated a revival of the entire field ...
  • Schmidt, Hennrik; Rode, Johannes C.; Smirnov, Dmitri; Haug, Rolf J. (London : Nature Publishing Group, 2014)
    The electronic properties of bilayer graphene strongly depend on relative orientation of the two atomic lattices. Whereas Bernal-stacked graphene is most commonly studied, a rotational mismatch between layers opens up a ...