by Marco Frasca in The Gauge Connection

When a theory is too hard to solve people try to consider lower dimensional cases. This also happened for Yang-Mills theory. The four dimensional case is notoriously difficult to manage due to the large coupling and the three dimensional case has been treated both theoretically and by lattice computations. In this latter case, the ground […]... Read more »

Andreas Athenodorou, & Michael Teper. (2017) SU(N) gauge theories in 2 1 dimensions: glueball spectra and kstring tensions. J. High Energ. Phys., 15. arXiv: 1609.03873v1

Marco Frasca. (2016) Confinement in a three-dimensional Yang-Mills theory. arXiv. arXiv: 1611.08182v2

Marco Frasca. (2015) Quantum Yang-Mills field theory. Eur. Phys. J. Plus (2017) 132: 38. arXiv: 1509.05292v2

by Marco Frasca in The Gauge Connection

Exact solutions of quantum field theories are very rare and, normally, refer to toy models and pathological cases. Quite recently, I put on arxiv a pair of papers presenting exact solutions both of the Higgs sector of the Standard Model and the Yang-Mills theory made just of gluons. The former appeared a few month ago […]... Read more »

Marco Frasca. (2015) A theorem on the Higgs sector of the Standard Model. Eur. Phys. J. Plus (2016) 131: 199. arXiv: 1504.02299v3

Marco Frasca. (2015) Quantum Yang-Mills field theory. arXiv. arXiv: 1509.05292v1

Carl M. Bender, Kimball A. Milton, & Van M. Savage. (1999) Solution of Schwinger-Dyson Equations for ${\cal PT}$-Symmetric Quantum Field Theory. Phys.Rev.D62:085001,2000. arXiv: hep-th/9907045v1

by Marco Frasca in The Gauge Connection

LHCP2016 is running yet with further analysis on 2015 data by people at CERN. We all have seen the history unfolding since the epochal event on 4 July 2012 where the announcement of the great discovery happened. Since then, also Kibble passed away. What is still there is our need of a deep understanding of the […]... Read more »

by Jalees Rehman in The Next Regeneration

One key characteristic of a beautiful scientific theory is the simplicity of the underlying concepts. According to Weinberg, Einstein's theory of gravitation is described in fourteen equations whereas Newton's theory can be expressed in three. Despite the appearance of greater complexity in Einstein's theory, Weinberg finds it more beautiful than Newton's theory because the Einsteinian approach rests on one elegant central principle – the equivalence of gravitation and ........ Read more »

Dietrich, M., Ankeny, R., & Chen, P. (2014) Publication Trends in Model Organism Research. Genetics, 198(3), 787-794. DOI: 10.1534/genetics.114.169714

Weinberg, Steven. (1992) Dreams of a Final Theory . Vintage Books. info:/

Artist's depiction of the WMAP satellite gathering data to understand the Big Bang. Source: NASA.For decades physicists have been trying to decipher the first moments after the Big Bang. Using very large telescopes, for example, scientists scan the skies and look at how fast galaxies move. Satellites study the relic radiation left from the Big Bang, called the cosmic microwave background radiation. And finally, particle colliders, like the Large Hadron Collider at CERN, allow researchers to smas........ Read more »

Grohs, E., Fuller, G., Kishimoto, C., Paris, M., & Vlasenko, A. (2016) Neutrino energy transport in weak decoupling and big bang nucleosynthesis. Physical Review D, 93(8). DOI: 10.1103/PhysRevD.93.083522

by Marco Frasca in The Gauge Connection

Quantum gravity appears today as the Holy Grail of physics. This is so far detached from any possible experimental result but with a lot of attentions from truly remarkable people anyway. In some sense, if a physicist would like to know in her lifetime if her speculations are worth a Nobel prize, better to work […]... Read more »

Ali H. Chamseddine, Alain Connes, & Viatcheslav Mukhanov. (2014) Quanta of Geometry: Noncommutative Aspects. Phys. Rev. Lett. 114 (2015) 9, 091302. arXiv: 1409.2471v4

Ali H. Chamseddine, Alain Connes, & Viatcheslav Mukhanov. (2014) Geometry and the Quantum: Basics. JHEP 12 (2014) 098. arXiv: 1411.0977v1

Farina, A., Frasca, M., & Sedehi, M. (2013) Solving Schrödinger equation via Tartaglia/Pascal triangle: a possible link between stochastic processing and quantum mechanics. Signal, Image and Video Processing, 8(1), 27-37. DOI: 10.1007/s11760-013-0473-y

by Marco Frasca in The Gauge Connection

Two days ago, CERN presented their new results at 13 TeV to the World. Of course, collected data so far are not enough for conclusive results but the these are exciting anyway. The reason is that both the collaborations, CMS and ATLAS, see a bump at around 750 GeV in the decay. Summing up the results […]... Read more »

Marco Frasca. (2015) A theorem on the Higgs sector of the Standard Model. arxiv. arXiv: 1504.02299v2

Marco Frasca. (2015) Quantum Yang-Mills field theory. arxiv. arXiv: 1509.05292v1

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

by Marco Frasca in The Gauge Connection

LHCP 2015 is going on at St. Peterburg and new results were presented by the two main collaborations at CERN. CMS and ATLAS combined the results from run 1 and improved the quality of the measured data of the Higgs particle discovered on 2012. CERN press release is here. I show you the main picture about […]... Read more »

Marco Frasca. (2015) A theorem on the Higgs sector of the Standard Model. arxiv. arXiv: 1504.02299v1

by Angela Reisetter in Steeped in Science

A look at living with disease close at hand, using a couple different papers. Living with Risk.... Read more »

Foxman EF, Storer JA, Fitzgerald ME, Wasik BR, Hou L, Zhao H, Turner PE, Pyle AM, & Iwasaki A. (2015) Temperature-dependent innate defense against the common cold virus limits viral replication at warm temperature in mouse airway cells. Proceedings of the National Academy of Sciences of the United States of America, 112(3), 827-32. PMID: 25561542

Martincorena I, Roshan A, Gerstung M, Ellis P, Van Loo P, McLaren S, Wedge DC, Fullam A, Alexandrov LB, Tubio JM.... (2015) Tumor evolution. High burden and pervasive positive selection of somatic mutations in normal human skin. Science (New York, N.Y.), 348(6237), 880-6. PMID: 25999502

Cherry, J., Liu, B., Frost, J., Lemere, C., Williams, J., Olschowka, J., & O’Banion, M. (2012) Galactic Cosmic Radiation Leads to Cognitive Impairment and Increased Aβ Plaque Accumulation in a Mouse Model of Alzheimer’s Disease. PLoS ONE, 7(12). DOI: 10.1371/journal.pone.0053275

by Greg Fish in weird things

Dark matter is a substance that makes up nearly all mass in the universe, but decades after we discovered it, all we have are indirect measurements which show us that it’s there in very large amounts, forming galactic halos, but ultimately, little else. It doesn’t seem to interact with any of the stuff that makes stars, dust, and planets, it emits or reflects no radiation, and this utter lack of interesting properties we could study [...]... Read more »

Harvey, D., Massey, R., Kitching, T., Taylor, A., & Tittley, E. (2015) The nongravitational interactions of dark matter in colliding galaxy clusters. Science, 347(6229), 1462-1465. DOI: 10.1126/science.1261381

Massey, R., Williams, L., Smit, R., Swinbank, M., Kitching, T., Harvey, D., Jauzac, M., Israel, H., Clowe, D., Edge, A.... (2015) The behaviour of dark matter associated with four bright cluster galaxies in the 10 kpc core of Abell 3827. Monthly Notices of the Royal Astronomical Society, 449(4), 3393-3406. DOI: 10.1093/mnras/stv467

by Marco Frasca in The Gauge Connection

Notwithstanding LHC has seen the particle, the Higgs sector of the Standard Model has some serious problems. This fact yielded more than one headache to physicists. One of these difficulties is called technically “triviality“. The scalar field theory, that is so well defined classically, does not exist as a quantum field theory unless is non-interacting. […]... Read more »

Aizenman, M. (1981) Proof of the Triviality of Field Theory and Some Mean-Field Features of Ising Models for . Physical Review Letters, 47(12), 886-886. DOI: 10.1103/PhysRevLett.47.886

Renata Jora. (2015) $Φ^4$ theory is trivial. arXiv. arXiv: 1503.07298v1

Marco Frasca. (2006) Proof of triviality of $λφ^4$ theory. Int.J.Mod.Phys.A22:2433-2439,2007. arXiv: hep-th/0611276v5

Igor M. Suslov. (2010) Asymptotic Behavior of the \Beta Function in the Φ^4 Theory: A Scheme Without Complex Parameters. J.Exp.Theor.Phys.111:450-465,2010. arXiv: 1010.4317v1

I. L. Bogolubsky, E. -M. Ilgenfritz, M. Müller-Preussker, & A. Sternbeck. (2009) Lattice gluodynamics computation of Landau-gauge Green's functions in the deep infrared. Phys.Lett.B676:69-73,2009. arXiv: 0901.0736v3

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

by Mark E. Lasbury in The 'Scope

Tractor beams pulling space ships are things of science fiction, but tractor beams pulling small objects on Earth are science fact. Beams usually push things away with their force, but we have learned to manipulate them so that they push things back to the source – we can do it with water, sound and even laser light.... Read more »

Shvedov, V., Davoyan, A., Hnatovsky, C., Engheta, N., & Krolikowski, W. (2014) A long-range polarization-controlled optical tractor beam. Nature Photonics, 8(11), 846-850. DOI: 10.1038/nphoton.2014.242

Mo Li, W. H. P. Pernice, & H. X. Tang. (2009) Tunable bipolar optical interactions between guided lightwaves. Nature Photonics. arXiv: 0903.5117v1

Démoré CE, Dahl PM, Yang Z, Glynne-Jones P, Melzer A, Cochran S, MacDonald MP, & Spalding GC. (2014) Acoustic tractor beam. Physical review letters, 112(17), 174302. PMID: 24836252

Punzmann, H., Francois, N., Xia, H., Falkovich, G., & Shats, M. (2014) Generation and reversal of surface flows by propagating waves. Nature Physics, 10(9), 658-663. DOI: 10.1038/nphys3041

Ruffner DB, & Grier DG. (2012) Optical conveyors: a class of active tractor beams. Physical review letters, 109(16), 163903. PMID: 23215079

by Mark E. Lasbury in The 'Scope

Can we make a Star Trek phaser? In a classic example of life imitating art, the militaries of many countries are actively pursuing such directed energy weapons. So far, we’ve developed high-energy lasers and masers, particle beams, and something that looks a lot like an aimed lightning bolt. But our versions are huge, what must be overcome to make hand-held versions?... Read more »

Shao, L., Cline, D., Ding, X., Ho, Y., Kong, Q., Xu, J., Pogorelsky, I., Yakimenko, V., & Kusche, K. (2013) Simulation prediction and experiment setup of vacuum laser acceleration at Brookhaven National Lab-Accelerator Test Facility. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 25-29. DOI: 10.1016/j.nima.2012.09.053

Bartal, T., Foord, M., Bellei, C., Key, M., Flippo, K., Gaillard, S., Offermann, D., Patel, P., Jarrott, L., Higginson, D.... (2011) Focusing of short-pulse high-intensity laser-accelerated proton beams. Nature Physics, 8(2), 139-142. DOI: 10.1038/nphys2153

Oxborrow, M., Breeze, J., & Alford, N. (2012) Room-temperature solid-state maser. Nature, 488(7411), 353-356. DOI: 10.1038/nature11339

Peralta, E., Soong, K., England, R., Colby, E., Wu, Z., Montazeri, B., McGuinness, C., McNeur, J., Leedle, K., Walz, D.... (2013) Demonstration of electron acceleration in a laser-driven dielectric microstructure. Nature, 503(7474), 91-94. DOI: 10.1038/nature12664

R.D. Curry. (2012) Investigation of a toroidal air plasma under atmospheric conditions . Plasma Science (ICOPS), 2. DOI: 10.1109/PLASMA.2012.6383564

by Mark E. Lasbury in The 'Scope

Is it possible to hide in plain sight? Star Trek had cloaking devices, and Harry Potter and Frodo Baggins had their magic cloaks. In real life, we can make things disappear too. Cloaking devices are quickly becoming reality, and we bend light to make them work.... Read more »

Choi, J., & Howell, J. (2014) Paraxial ray optics cloaking. Optics Express, 22(24), 29465. DOI: 10.1364/OE.22.029465

Fan, P., Chettiar, U., Cao, L., Afshinmanesh, F., Engheta, N., & Brongersma, M. (2012) An invisible metal–semiconductor photodetector. Nature Photonics, 6(6), 380-385. DOI: 10.1038/nphoton.2012.108

Soric, J., Chen, P., Kerkhoff, A., Rainwater, D., Melin, K., & Alù, A. (2013) Demonstration of an ultralow profile cloak for scattering suppression of a finite-length rod in free space. New Journal of Physics, 15(3), 33037. DOI: 10.1088/1367-2630/15/3/033037

by Mark E. Lasbury in The 'Scope

Star Trek’s 50th anniversary is next year. Wouldn’t transporting a person to the ISS be a great way to celebrate? Well, there are a couple of problems to overcome, but we’re on our way. We have recently learned how to transport information and light from one place to another, without it ever existing anywhere in between! And this will help us make quantum computers that will be able to transport all the information contained in every atom of your body.... Read more »

Filippov, S., & Ziman, M. (2014) Entanglement sensitivity to signal attenuation and amplification. Physical Review A, 90(1). DOI: 10.1103/PhysRevA.90.010301

Ma, X., Herbst, T., Scheidl, T., Wang, D., Kropatschek, S., Naylor, W., Wittmann, B., Mech, A., Kofler, J., Anisimova, E.... (2012) Quantum teleportation over 143 kilometres using active feed-forward. Nature, 489(7415), 269-273. DOI: 10.1038/nature11472

Shomroni, I., Rosenblum, S., Lovsky, Y., Bechler, O., Guendelman, G., & Dayan, B. (2014) All-optical routing of single photons by a one-atom switch controlled by a single photon. Science, 345(6199), 903-906. DOI: 10.1126/science.1254699

Yokoyama, S., Ukai, R., Armstrong, S., Sornphiphatphong, C., Kaji, T., Suzuki, S., Yoshikawa, J., Yonezawa, H., Menicucci, N., & Furusawa, A. (2013) Ultra-large-scale continuous-variable cluster states multiplexed in the time domain. Nature Photonics, 7(12), 982-986. DOI: 10.1038/nphoton.2013.287

by Mark E. Lasbury in The 'Scope

As Star Trek’s 50th anniversary approaches, are we getting closer to traveling at light speed? Believe it or not – yes, we are. We have begun to understand and harness the power of antimatter, and the plasma bubble-driven warp drive has moved from silly idea to serious consideration – so much so that NASA has designed a warp drive ship, the IXS Enterprise, of course.... Read more »

S. Beghella-Bartoli, P.M. Bhujbal, A. Nas. (2015) Confirmation of Santilli's detection of antimatter galaxies via a telescope with concave lens. America Journal of Modern Physics, 4(1), 34. info:/

Alcubierre, M. (1994) The warp drive: hyper-fast travel within general relativity. Classical and Quantum Gravity, 11(5). DOI: 10.1088/0264-9381/11/5/001

Ganiev, Y., Gordeev, V., Krasilnikov, A., Lagutin, V., Otmennikov, V., & Panasenko, A. (2000) Aerodynamic Drag Reduction by Plasma and Hot-Gas Injection. Journal of Thermophysics and Heat Transfer, 14(1), 10-17. DOI: 10.2514/2.6504

Ronan Keane, & Wei-Ming Zhang. (2012) Beamed Core Antimatter Propulsion: Engine Design and Optimization. J.Br.Interplanet.Soc. arXiv: 1205.2281v2

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by Marco Frasca in The Gauge Connection

Hawking radiation is one of the most famous effects where quantum field theory combines successfully with general relativity. Since 1975 when Stephen Hawking uncovered it, this results has obtained a enormous consideration and has been derived in a lot of different ways. The idea is that, very near the horizon of a black hole, a […]... Read more »

V. B. Bezerra, H. S. Vieira, & André A. Costa. (2013) The Klein-Gordon equation in the spacetime of a charged and rotating black hole. Class. Quantum Grav. 31 (2014) 045003. arXiv: 1312.4823v1

H. S. Vieira, V. B. Bezerra, & C. R. Muniz. (2014) Exact solutions of the Klein-Gordon equation in the Kerr-Newman background and Hawking radiation. Annals of Physics 350 (2014) 14-28. arXiv: 1401.5397v4

Leahy, D., & Unruh, W. (1983) Effects of a λΦ4 interaction on black-hole evaporation in two dimensions. Physical Review D, 28(4), 694-702. DOI: 10.1103/PhysRevD.28.694

Giovanni Collini, Valter Moretti, & Nicola Pinamonti. (2013) Tunnelling black-hole radiation with $φ^3$ self-interaction: one-loop computation for Rindler Killing horizons. Lett. Math. Phys. 104 (2014) 217-232. arXiv: 1302.5253v4

Marco Frasca. (2014) Hawking radiation and interacting fields. arXiv. arXiv: 1412.1955v1

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

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