http://hdl.handle.net/2289/22 Search the Channel search http://dspace.rri.res.in:8080/jspui/simple-search http://hdl.handle.net/2289/3887 Title: Spacelike distance from discrete causal order<br/><br/>Authors: Rideout, David; Wallden, Petros<br/><br/>Abstract: Any discrete approach to quantum gravity must provide some prescription as to how to deduce continuum properties from the discrete substructure. In the causal set approach it is straightforward to deduce timelike distances, but surprisingly difficult to extract spacelike distances, because of the unique combination of discreteness with local Lorentz invariance in that approach. We propose a number of methods to overcome this difficulty, one of which reproduces the spatial distance between two points in a finite region of Minkowski space. We provide numerical evidence that this definition can be used to define a 'spatial nearest neighbor' relation on a causal set, and conjecture that this can be exploited to define the length of 'continuous curves' in causal sets which are approximated by curved spacetime. This provides some evidence in support of the 'Hauptvermutung' of causal sets.<br/><br/>Description: Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations) Sun, 28 Jun 2009 22:58:59 GMT http://hdl.handle.net/2289/3880 Title: Generation and gravitational waves from inspiralling compact binaries: 3PN luminosity, 2PN linear momentum flux and applications<br/><br/>Authors: Qusailah, M.S.S.<br/><br/>Description: Open Access Sat, 29 Oct 2005 22:58:59 GMT http://hdl.handle.net/2289/3871 Title: Forcing self-assembled biomolecular structures: a study on membrane nanotubulation and chromatin fibers.<br/><br/>Authors: Roopa, T.<br/><br/>Description: Open Access Sat, 29 Oct 2005 22:58:59 GMT http://hdl.handle.net/2289/3869 Title: A study of fluctuations and transport in non-equilibrium systems.<br/><br/>Authors: Marathe, Rahul<br/><br/>Description: Open Access Mon, 29 Oct 2007 22:58:59 GMT