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All posts; Tags Include "Non-Linear Dynamics"

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  • November 27, 2015
  • 10:45 PM
  • 863 views

A Treatise on the Physics and Psychology of Heavy Metal Music

by Amiya Sarkar in Physiology physics woven fine

A rather panoramic view of the heavy metal arena encompassing various aspects of science and psychology. ... Read more »

Jesse L. Silverberg, Matthew Bierbaum, James P. Sethna, & Itai Cohen. (2013) Collective Motion of Moshers at Heavy Metal Concerts. 10.1103/PhysRevLett.110.228701. arXiv: 1302.1886v1

  • March 14, 2015
  • 10:31 AM
  • 1,132 views

Is Higgs alone?

by Marco Frasca in The Gauge Connection

I am back after the announcement by CERN of the restart of LHC. On May this year we will have also the first collisions. This is great news and we hope for the best and the best here is just the breaking of the Standard Model. The Higgs in the title is not Professor Higgs […]... Read more »

Marco Frasca. (2009) Exact solutions of classical scalar field equations. J.Nonlin.Math.Phys.18:291-297,2011. arXiv: 0907.4053v2

Marco Frasca. (2013) Scalar field theory in the strong self-interaction limit. Eur. Phys. J. C (2014) 74:2929. arXiv: 1306.6530v5

Marco Frasca. (2014) Exact solutions for classical Yang-Mills fields. arXiv. arXiv: 1409.2351v2

Biagio Lucini, & Marco Panero. (2012) SU(N) gauge theories at large N. Physics Reports 526 (2013) 93-163. arXiv: 1210.4997v2

  • November 17, 2014
  • 11:54 AM
  • 1,111 views

That’s a Higgs but how many?

by Marco Frasca in The Gauge Connection

CMS and ATLAS collaborations are yet up to work producing results from the datasets obtained in the first phase of activity of LHC. The restart is really near the corner and, maybe already the next summer, things can change considerably. Anyway what they get from the old data can be really promising and rather intriguing. […]... Read more »

Marco Frasca. (2013) Scalar field theory in the strong self-interaction limit. Eur. Phys. J. C (2014) 74:2929. arXiv: 1306.6530v5

Marco Frasca. (2012) Classical solutions of a massless Wess-Zumino model. J.Nonlin.Math.Phys. 20:4, 464-468 (2013). arXiv: 1212.1822v2

  • April 14, 2014
  • 01:22 PM
  • 1,000 views

Right-Sizing U.S. Electrical Grid Could Reduce Blackout Risk

by dailyfusion in The Daily Fusion

David Newman, a physicist at the University of Alaska, believes that smaller grids would reduce the likelihood of severe outages, such as the 2003 Northeast blackout that cut power to 50 million people in the United States and Canada for up to two days.... Read more »

Carreras, B., Newman, D., & Dobson, I. (2014) Does size matter?. Chaos: An Interdisciplinary Journal of Nonlinear Science, 24(2), 23104. DOI: 10.1063/1.4868393  

  • October 5, 2013
  • 12:35 PM
  • 2,181 views

Y’a-t-il des trous noirs dans la mer ?

by Dr. Goulu in Pourquoi Comment Combien

Cette petite similitude mathématiques aurait mérité une phrase dans l'article, éventuellement un paragraphe, mais sa présence dans l'abstract et même le titre de l'article sent plutôt la recherche du buzz, qui touche même le monde de la publication scientifique... Read more »

  • August 17, 2013
  • 03:58 PM
  • 1,115 views

The Witten’s paradox

by Marco Frasca in The Gauge Connection

Edward Witten is one of the greatest living physicists and also ranks high with mathematicians. He set the agenda for theoretical physics in several areas of research. He is mostly known for championing string theory and being one of few people that revolutionized the field. One of his major contributions to supersymmetry has been a […]... Read more »

A. Bashir, & J. Lorenzo Diaz-Cruz. (1999) A study of Schwinger-Dyson Equations for Yukawa and Wess-Zumino Models. J.Phys.G25:1797-1805,1999. arXiv: hep-ph/9906360v1

  • December 16, 2012
  • 06:14 AM
  • 1,173 views

Where does mass come from?

by Marco Frasca in The Gauge Connection

After CERN’s updates (well recounted here and here) producing no real news but just some concern about possible Higgs cloning, I would like to discuss here some mathematical facts about what one should expect about mass generation and why we should not be happy with these results, now coming out on a quarterly basis. The [...]... Read more »

M. Beneke, & P. Moch. (2012) On "dynamical mass" generation in Euclidean de Sitter space. arXiv. arXiv: 1212.3058v1

Marco Frasca. (2009) Exact solutions of classical scalar field equations. J.Nonlin.Math.Phys.18:291-297,2011. arXiv: 0907.4053v2

  • September 19, 2012
  • 09:58 AM
  • 1,167 views

Warp drive at NASA

by Marco Frasca in The Gauge Connection

I am currently a twitter user. One of my followings is Jeri Ryan. She has been Seven of Nine in Star Trek Voyager saga. Yesterday, it comes out of the blue what I read in one of her twits: NASA is developing warp drive! Indeed, Jeri was pointing to  this link. This is a Gizmodo’s [...]... Read more »

Stefano Finazzi, Stefano Liberati, & Carlos Barceló. (2009) Semiclassical instability of dynamical warp drives. PHYSICAL REVIEW D 79, 124017 (2009). arXiv: 0904.0141v2

Miguel Alcubierre. (2000) The warp drive: hyper-fast travel within general relativity. Class.Quant.Grav.11:L73-L77,1994. arXiv: gr-qc/0009013v1

  • October 26, 2011
  • 04:07 AM
  • 1,487 views

Fluid Dynamics In Slow Motion: How Flowers Catch Raindrops

by DJ Busby in Astronasty

Using cameras able to film in the ultra-slow-motion we've all come to love, this study has produced something truly beautiful.... Read more »

Guillermo Amador, Yasukuni Yamada, & David Hu. (2011) How flowers catch raindrops. ArXiv. arXiv: 1110.3993v1

  • September 10, 2011
  • 11:21 PM
  • 1,179 views

Unidirectional cacophony

by Vivek Venkataraman in sciencebyte

Device which lets sound travel one way, but not in the opposite direction... Read more »

Boechler, N., Theocharis, G., & Daraio, C. (2011) Bifurcation-based acoustic switching and rectification. Nature Materials, 10(9), 665-668. DOI: 10.1038/nmat3072  

  • August 6, 2011
  • 06:42 AM
  • 1,541 views

Cultural Evolution and the Impending Singularity: The Movie

by Sean Roberts in A Replicated Typo 2.0

A video of a talk I gave at the Santa Fe Institute, asking questions like "Has Biological Evolution come to an end?", "Is belief an emergent property?", "Will advanced computers use humans as batteries?" and "Will robots spend more time playing the violin than solving science?"... Read more »

Sperl, M., Chang, A., Weber, N., & Hübler, A. (1999) Hebbian learning in the agglomeration of conducting particles. Physical Review E, 59(3), 3165-3168. DOI: 10.1103/PhysRevE.59.3165  

Chater N, & Christiansen MH. (2010) Language acquisition meets language evolution. Cognitive science, 34(7), 1131-57. PMID: 21564247  

Ay N, Flack J, & Krakauer DC. (2007) Robustness and complexity co-constructed in multimodal signalling networks. Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 362(1479), 441-7. PMID: 17255020  

Guttal V, & Couzin ID. (2010) Social interactions, information use, and the evolution of collective migration. Proceedings of the National Academy of Sciences of the United States of America, 107(37), 16172-7. PMID: 20713700  

  • July 14, 2011
  • 03:31 AM
  • 3,460 views

What it feels like for a sperm

by aatishb in Empirical Zeal

We don’t usually learn about the physics of squishy things. Physics textbooks are filled with solid objects such as incompressible blocks, inclined planes and inelastic strings. This is the rigid world that obeys Newton’s laws. Here, squishiness is an exception and drag is routinely ignored... Continue reading →... Read more »

  • June 15, 2011
  • 12:15 AM
  • 1,695 views

Cultural Evolution and the Impending Singularity

by Sean Roberts in A Replicated Typo 2.0

Prof. Alfred Hulber is an actual mad professor who is a danger to life as we know it. In a talk this evening he went from ball bearings in castor oil to hyper-advanced machine intelligence. However, will hyper-intelligent machines actually give us a better scientific understanding of the universe, or will they just spend their time playing tetris?... Read more »

Sperl, M., Chang, A., Weber, N., & Hübler, A. (1999) Hebbian learning in the agglomeration of conducting particles. Physical Review E, 59(3), 3165-3168. DOI: 10.1103/PhysRevE.59.3165  

Bettencourt LM, Lobo J, Helbing D, Kühnert C, & West GB. (2007) Growth, innovation, scaling, and the pace of life in cities. Proceedings of the National Academy of Sciences of the United States of America, 104(17), 7301-6. PMID: 17438298  

Chater N, & Christiansen MH. (2010) Language acquisition meets language evolution. Cognitive science, 34(7), 1131-57. PMID: 21564247  

  • November 7, 2010
  • 02:56 AM
  • 1,894 views

Rolling and Slipping of Euler’s Disk – Spin a coin and watch it roll!

by Croor Singh in Learning to be Terse

An experimental study of the motion of Euler's disk. It is shown that the major energy dissipation mechanism in the problem is the friction from the surface and not viscous drag.... Read more »

Caps, H., Dorbolo, S., Ponte, S., Croisier, H., & Vandewalle, N. (2004) Rolling and slipping motion of Euler’s disk. Physical Review E, 69(5). DOI: 10.1103/PhysRevE.69.056610  

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