Recent content by David Horgan

Sorry for the typo - it should be LQG of course. Knot software: Good source of general knot theory software are: http://katlas.org/wiki/Further_Knot_Theory_Software - this has links to all sorts of know theory software from Mathematica package knotTheory through to programs like knotplot...

Hi Clement, Although your question is in the context of LQQ I think your main concern is around simulating knots. A lot of work has been done on simulating knots. This work is wide ranging and interdisciplinary in nature. There is software to draw and detect knots and to carry out sequences...

Hi martinbn, The texts I've recommended to YellowBiro are designed to take postgraduates and researchers to the forefront of a research area and to be able to pick up a research paper, Thesis or arxiv article and to understand them. I have found graduate texts or monographs are the most...

Hi YellowBiro, May I make suggest a few things to get you started on learning about quantum gravity. I've personally read and found a number of books very useful so I'll list them below, as you'll notice I have a decided preference for the Cambridge Monographs on Mathematical Physics and the...

Hi Shereen, the best introductory book I have come across is: Supersymmetric Gauge Field Theory and String Theory (Graduate Student Series in Physics) by D. Bailin, it's designed for early PhD or masters students so it is a proper technical introduction but still accessible.

Once again Lee Smolin has produced here a wonderful paper. As you say the references alone give you a pretty good overview of Quantum Gravity. The only minor issue I have is that there isn't any reference to Penrose and his work which is weird given his output on spacetime and causality...

This paper is legitimate in the context of the Pati–Salam model see for example:http://puhep1.princeton.edu/~mcdonald/examples/EP/pati_prd_10_275_74.pdf http://arxiv.org/pdf/hep-ph/0310006 andhttp://www.physics.ohio-state.edu/~raby/raby.world.summit.2006.preprint.pdf

Historically there has always been a strong link between Quantum effects and genetics. A good introductory place to start with this would be Schrödinger's 'What is Life' [PLAIN]http://whatislife.stanford.edu/LoCo_files/What-is-Life.pdf[/URL] . The link between genetics and quantum mechanics is...

Hi Brian, some of the best senior thesis in physics I have seen are those from Wooster College. Here is a link to their undergraduate research programme, where you can find advice on writing thesis, examples of senior thesis and thesis titles: http://physics.wooster.edu/REU/projects.html

To be honest, it just looks like an alternative statement of the Heisenberg Uncertainty principle.

May I suggest Reading: An atomic clock with 10−18 instability. Science, Volume 341, Issue 6151, pp. 1215-1218 (2013). or http://arxiv.org/abs/1305.5869

Hi Marcus, yes the paper 'Quanta of Geometry' is quite interesting - I'm just 're-reading it now. As you say good one Atty and Chronos for the spot. Checking through the references 'Beyond the Spectral Standard Model:Emergence of Pati-Salam Unification' looks quite fruitful in terms of having...

Thanks for this thread Marcus, looks like I've got some interesting reading to look forward to! I've been working on a series of papers on semiclassical and asymptotic wigner 6j symbols, the Askey scheme and caustics so haven't picked up on Lanery' s work as much as I should have by the sound of it.

Photons interact gravitationally but this gravitational scattering of light by light has been studied only rarely. Studies go back to Tolman, Ehrenfest and Podolsky in 1931 and to Wheeler in 1955 who analysed the gravitational field of light beams and the corresponding geodesics in the linear...

Thanks Marcus this pair of papers are very valuable. Wieland' s work is outstanding isn't it. Definitely time to review again the Cambridge Monographs on Mathematical physics on sponsors and twistors.