# Tag Info

0

The answer to my question is Yes. Embarrassingly, one of the simplest examples is given by the fermionic quasistring topological order I described in my paper http://arxiv.org/abs/1404.4385 . The magic is that the 5th oriented bordism group is generated by the mapping torus of complex conjugation on CP^2. Thus, if we consider the fermionic quasistring top ...

2

The Magnification is a combination of all of the focal lengths of the picture you have shown above. A real image is created by the objective and tube lens. This creates an image of what you have at the object plane that is magnified by: $M = \frac {f_{tube lens}}{f_{objective}}$ So, if you were to measure the size of the image, it would be M times ...

0

Well, I'd like to give a different perspective to the train of thought here. Geometric topology and its related fields are important in the study of elastic membranes and sheets and their d-dimensional variants. In particular, understanding topological transformations of membrane vesicles or sheets is a non-trivial and open problem. On a related note, the ...

2

The webpage you were looking at is run by H. D. Zeh. So if you want to find out what he's talking about the best way to find out is to look up some of his papers, such as: http://arxiv.org/abs/1012.4708. He describes decoherence in quantum gravity in Section 5 of the paper. The basic answer is as follows. The Wheeler-DeWitt equation is time-independent in ...

0

Holographic renormalization for non-conformal branes, i.e. non-AdS/non-CFT systems, was systematically developed in this paper by Kanitscheider, Skenderis and Taylor. They even work it out for the example of the Witten model, which is the background of the Sakai-Sugimoto model. The key principle that permits one to extend the formalism of holographic ...

Top 50 recent answers are included