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Professor David Tong: Research in Theoretical Physics
www.damtp.cam.ac.uk/user/tong/research.html16 Nov 2021: Physically, solitons are new objects that appear in a system due to the cooperative behaviour of the underlying constituents. ... physics). The dynamics of these vortices provides a new window into questions in quantum field theory. -
On the mysteries of artificial intelligence - do we know what we are…
www.damtp.cam.ac.uk/research/afha/subpages/Lectures.html21 May 2021: The use of deep learning in inverse problems is a rather new concept, and the community has just started investigating the many possibilities. -
Research
www.damtp.cam.ac.uk/user/or100/research.html19 Apr 2021: Dr Orsola Rath Spivack. "The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' (I've found it!), but 'That's funny.'" - Isaac Asimov. -
David Tong, Theoretical Physicist: A Collection of Talks and…
www.damtp.cam.ac.uk/user/tong/talks.html17 Jun 2021: Boundary States for Fermions PDF (12 Mb). A New 5d Non-Supersymmetric Fixed Point? -
Teaching
www.damtp.cam.ac.uk/user/or100/teaching.html19 Apr 2021: Dr Orsola Rath Spivack. "The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' (I've found it!), but 'That's funny.'" -Isaac Asimov. -
Eocene Syndrome'
www.damtp.cam.ac.uk/user/mem/eocene-syndrome.html17 Jul 2021: Whether or not we are heading to a new Eocene depends on the difference between (a) and (b). -
LUCIDITY AND SCIENCE: ABSTRACT
www.damtp.cam.ac.uk/user/mem/papers/LHCE/abstract.html17 Jul 2021: see also note below, and my new book). Abstract to Part I :. Human perceptual processing has remarkable properties, the properties that enabled our ancestors to survive. -
Numerical analysis preprints, 2011–2021 2021: NA2021/01: Arieh…
www.damtp.cam.ac.uk/user/na/NA_Group/Reports11_17.html5 Feb 2021: NA2011/07: M. Condon, A. Deaño & A. Iserles, "A new simulation technique for RF oscillators". -
Have tail, will travel
www.damtp.cam.ac.uk/user/lauga/papers/198_news_views.pdf21 Jul 2021: Cholakova et al. characterized their new class of swimmer, measuring and analysing its propulsive performance. ... This new swimmer is thus off to a promising start, despite some remaining limitations. -
Editorial: On Transition (in Physical Review Fluids leadership)
www.damtp.cam.ac.uk/user/lauga/papers/193.pdf8 Jul 2021: The full scope of PRFluids can be found on the journal’sAbout page.) We invite submission of important new results to our Letters section,which offers expedited time to publication. ... In order to reach new research communities and the general -
B9s.dvi
www.damtp.cam.ac.uk/user/examples/B9s.pdf6 Oct 2021: Moreover, if the governingequation is linear in f, then any solutions f1 and f2 can be combined to give a new solution:. ... 1900: Planck introduces the energy-frequency relation, with h as a new physical constant, andderives the black body spectrum (the -
Swirling Instability of the Microtubule Cytoskeleton
www.damtp.cam.ac.uk/user/gold/pdfs/swirling.pdf13 Jan 2021: Shelley ,1,3,‡ and Raymond E. Goldstein 2,1Center for Computational Biology, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USA. ... 3Courant Institute, New York University, 251 Mercer Street, New York, New York 10012, USA. -
February 2021 EPL, 133 (2021) 44002 www.epljournal.orgdoi:…
www.damtp.cam.ac.uk/user/lauga/papers/188.pdf8 Jul 2021: At the level of a popula-tion of cells, this can then induce new, collective modes oflocomotion [15–17], impact fluid rheology [18] and leadto bio-inspired dynamics in artificial colloids ... coli in Motion (Springer-Verlag, New. York, NY) 2004.[43] -
Discrete Polynomial Optimization with Coherent Networks of…
www.damtp.cam.ac.uk/user/ngb23/publications/SuppInfPolynomial.pdf8 Jan 2021: After that we let χijk = 0 and allow the original system to relaxto a new steady state. ... G. Lagoudakis and N.G Berloff, ”A polariton graph simulator,” New Journal of Physics, 19, 125008 (2017)[4] K. -
Editorial: Five Years of Physical Review Fluids
www.damtp.cam.ac.uk/user/lauga/papers/207.pdf7 Dec 2021: in classical turbulence while also providing new experimental observations,estimation techniques, and physically insightful simplified models of quantities ofengineering importance. ... New studies have also demonstrated how surfaces impregnated -
Fluid Mechanics of Mosaic Ciliated Tissues
www.damtp.cam.ac.uk/user/lauga/papers/204.pdf29 Nov 2021: 46, D861 (2018). [23] J. Faber and P. D. Nieuwkoop, Normal Table of Xenopuslaevis (Daudin) (Garland Publishing Inc., New York, 1994). ... and Error Analysis for the Physical Sciences, 3rd ed.(McGraw-Hill, New York, 1993). -
Fluid Mechanics of Mosaic Ciliated Tissues
www.damtp.cam.ac.uk/user/gold/pdfs/mosaic.pdf2 Nov 2021: 46, D861 (2018). [23] J. Faber and P. D. Nieuwkoop, Normal Table of Xenopuslaevis (Daudin) (Garland Publishing Inc., New York, 1994). ... Error Analysis for the Physical Sciences, 3rd ed. (McGraw-Hill, New York, 1993). -
Remarks on the Mathematical Classification of Physical Quantities,
www.damtp.cam.ac.uk/user/tong/vc/maxwell.pdf10 Dec 2021: The most obvious case is that in which we learn that 'a certain system of quantities in a new science stand to one anotherin the same mathematical relations as a certain -
Supplemental Material:Fluid mechanics of mosaic ciliated tissues…
www.damtp.cam.ac.uk/user/gold/pdfs/mosaic_SM.pdf2 Nov 2021: pus laevis (Daudin) (Garland Publishing Inc., New York,1994). [S4] P.R. Bevington and D.K. -
Purely viscous acoustic propulsion of bimetallic rods
www.damtp.cam.ac.uk/user/lauga/papers/202.pdf12 Sep 2021: DOI: 10.1103/PhysRevFluids.6.L092201. Biological and synthetic nano- and microswimmers operate at a low Reynolds number, and theirstudy has been a place to discover and leverage new physics -
Capillary-Induced Motion of Particles Bridging Interfaces of a…
www.damtp.cam.ac.uk/user/hinch/publications/PhysRevLett.122.098001.pdf25 Oct 2021: Morerecently, there has been interest in assembling particlesof varying shapes, sizes, and surface properties at interfacesin order to synthesize new materials [7,8]. ... new motion we demonstrate is all about the size of particlesand the thickness of -
Rechargeable self-assembled droplet microswimmers driven by surface…
www.damtp.cam.ac.uk/user/lauga/papers/198.pdf10 Sep 2021: Our theoretical model has identified the key parameters gov-erning the motion and may inspire new discoveries in active matter. ... author contributionsD.C. discovered the phenomenon and clarified the experimental conditions under which this new type of -
2 A First Look at Quantum Fields In this ...
www.damtp.cam.ac.uk/user/tong/pp/pp2.pdf7 Jun 2021: particle, in units where the electron has Q = 1. This brings new opportunities. ... is sucient to remove the infinities. But now there is a new problem. -
Particle PhysicsCERN Lectures David Tong Department of Applied…
www.damtp.cam.ac.uk/user/tong/pp/pp1.pdf23 Apr 2021: anything. This, then, leaves us with our new periodic table, a world with just four particles:. ... reveal a new fundamental constant of nature C which translates between the two,. -
Artificial polariton molecules
www.damtp.cam.ac.uk/user/ngb23/publications/PhysRevB.103.L060507.pdf27 Feb 2021: G. Berloff, New J. Phys. 20, 113023(2018). [11] I. Carusotto and C. ... Lagoudakis and N. G. Berloff, New J. Phys. 19, 125008(2017). [51] J. -
solidstate
www.damtp.cam.ac.uk/user/tong/aqm/solid4.pdf7 Apr 2021: 2m!lNal (4.14). then our new operators al obey. [al, a†l0] = l,l0 and [al, al0] = [a. -
Oldroyd B, and not A? John Hincha, Oliver Harlenb,∗ ...
www.damtp.cam.ac.uk/user/hinch/publications/Oldroyd12b.pdf25 Oct 2021: new device at the time to measure normal stress differences. The additional terms in the 8-constant model, beyond those of the Oldroyd-B. ... We therefore need to intro-. duce a new variable A to describe the state of the micro-structure, combining. -
Unscrambling the Infinite: Can we Compute Spectra? Matthew Colbrook…
www.damtp.cam.ac.uk/user/mjc249/pdfs/Unscrambling-the-Infinite-from-MT-June-21.pdf15 Jun 2021: Indeed, this technique is already allowing for the discovery and investigation of new physics in quasicrystalline systems, including their transport and topological properties. -
Pure Maths fun crazy mathematical ideas? what good are they…
www.damtp.cam.ac.uk/user/or100/2019_NewnhamSummerSchool.pdf19 Apr 2021: i.e. let your imagination run wild!)I also use the new truths, to improve engineering, medicine,. ... Whole new worlds. Newnham Maths Summer School Orsola Rath Spivack University of CambridgePure Maths fun crazy mathematical ideas? -
3 The Strong Force In the middle of the ...
www.damtp.cam.ac.uk/user/tong/pp/pp3.pdf23 Apr 2021: in 1947, by a new particle called the pion, whose role was to keep the proton and. ... although these new baryons have a mass in the same ballpark as the ’s, they live for. -
Vol. 44 (2013) ACTA PHYSICA POLONICA B No 12 ...
www.damtp.cam.ac.uk/user/tong/talks/zakopane.pdf15 Apr 2021: Butat higher frequencies, the conductivity begins to rise again, signalling thepresence of new charge carriers, before levelling off. ... Note, in particular, that dynamics at finitetemperature exhibits a new phenomenon that does not arise at zero -
Dynamics of a helical swimmer crossing viscosity gradients
www.damtp.cam.ac.uk/user/lauga/papers/201.pdf10 Sep 2021: After the interaction withthe interface, the swimmer attains a new steady-state speed U μ0 = U+ = 2.5 mm/s. ... 4(d)]. Once the tail has completely gonethrough the interface, the swimmer attains its new steady-state speed, z > 2 [Figs. -
Rebound and scattering of motile Chlamydomonas algae in confined…
www.damtp.cam.ac.uk/user/lauga/papers/192.pdf8 Jul 2021: The trapping of algae brings them out oftheir aquatic environment, thus leading to depletion, but thiscould also favour dissemination to new environments. ... These cellsthen follow a new trajectory and eventually end up stuck inanother corner, and the -
2 Hilbert Space The realm of Quantum Mechanics is ...
www.damtp.cam.ac.uk/user/dbs26/PQM/chap2.pdf8 Oct 2021: dierent bases. For example, our state | i =R. R (x)|xi dx from above can equally beexpanded in the momentum basis as | i =. RR̃ ̃(p)|pi dp, where the new -
Hydrodynamic synchronization in strong confinement
www.damtp.cam.ac.uk/user/lauga/papers/187.pdf8 Jul 2021: properties, the phasedifference in the new gauge will depend only on the in-teractions. ... Thus, if wereach a phase locked state 0 in the new gauge, wecould say that φ1 φ2 0, asymptotically, with correctionson the order of the force modulation. -
Cilia density and flow velocity affect alignment of motile cilia from …
www.damtp.cam.ac.uk/user/lauga/papers/184.pdf17 Jan 2021: 5. Discussion and conclusionsOur results provide new valuable insights into the mechanism ofcilia alignment in the brain. -
Hydrodynamics and direction change of tumbling bacteria
www.damtp.cam.ac.uk/user/lauga/papers/199.pdf20 Jul 2021: https://doi. org/10.1371/journal.pone.0254551. Editor: Fang-Bao Tian, University of New South. Wales, AUSTRALIA. ... While the. unbundled flagellum is in semi-coiled form, the cell establishes a new swimming direction in. -
Convex optimization and quantum information theory
www.damtp.cam.ac.uk/user/hf323/qip2021_tutorial_cvxqi.pdf22 Apr 2021: Idea not new, rediscovered many times: Reznick, Doherty-Wehner, Parrilo.Main differences is choice of kernel/Fourier analysis part. -
An “occlusive thrombosis-on-a-chip” microfluidic device for…
www.damtp.cam.ac.uk/user/gold/pdfs/thrombosis.pdf29 Oct 2021: The development of. new anti-platelet drugs to prevent myocardial infarction continues to be an active area of research and is. -
Fluid flow in the sarcomere
www.damtp.cam.ac.uk/user/lauga/papers/197.pdf8 Jul 2021: Sarcomere functionrelies on a panoply of proteins beyond actin and myosin (see, for in-stance [5]), and sarcomeric proteins turnover as damaged componentsare removed and new proteins are incorporated [6]. -
solidstate
www.damtp.cam.ac.uk/user/tong/aqm/solid2.pdf7 Apr 2021: To leading order in perturbation theory, the new energy eigenstates will be some linear. ... choice of and will diagonalise the new Hamiltonian. There will be two such choices. -
J. Fluid Mech. (2021), vol. 916, A17, doi:10.1017/jfm.2021.181…
www.damtp.cam.ac.uk/user/lauga/papers/190.pdf8 Jul 2021: These gauge theories have been studied at length in physicsand so this representation introduces many new ideas and techniques. ... Thedimension of the new configuration space is the number of deformation modes, l, plusthe number of position and -
Energetics of synchronization for model flagella and cilia
www.damtp.cam.ac.uk/user/lauga/papers/189.pdf8 Jul 2021: PHYSICAL REVIEW E 103, 042419 (2021)Editors’ Suggestion. Energetics of synchronization for model flagella and cilia. Weida Liao and Eric Lauga. Department of Applied Mathematics and Theoretical Physics, University of Cambridge,Wilberforce Road, -
J. Fluid Mech. (2021), vol. 914, A20, doi:10.1017/jfm.2020.1112 The…
www.damtp.cam.ac.uk/user/lauga/papers/186.pdf8 Jul 2021: 2016). Here, motivated by prior experimental work and in light of new results we considera range of issues surrounding the fluid dynamical description of mills, with particularattention to the fluid velocity -
Part III - Classical and Quantum Solitons
www.damtp.cam.ac.uk/user/examples/3P11e.pdf20 Apr 2021: explanation. After quantization, they give riseto new particle states in the underlying quantum field theory that are not seen inperturbation theory. ... It turns out solitons also behave like particles, and they area new type of particles. -
J. Fluid Mech. (2021), vol. 914, A20, doi:10.1017/jfm.2020.1112 The…
www.damtp.cam.ac.uk/user/gold/pdfs/worms.pdf5 Mar 2021: 2016). Here, motivated by prior experimental work and in light of new results we considera range of issues surrounding the fluid dynamical description of mills, with particularattention to the fluid velocity -
Stabilizing viscous extensional flows using reinforcement learning
www.damtp.cam.ac.uk/user/lauga/papers/205.pdf1 Dec 2021: Ineach new episode, we then use the latest estimates of C and Das parameters. -
IEEE TRANSACTIONS ON SIGNAL PROCESSING 1 Stratified Sampling Based ...
www.damtp.cam.ac.uk/research/afha/anders/CSPaper_Loss_Colbrook_Hansen.pdf8 Mar 2021: are demonstrated by means of two applications, namely elec-tron microscopy (EM) and the relatively new field of structuralhealth monitoring (SHM). ... 20] B. Adcock, A. C. Hansen, C. Poon, and B. Roman, “Breaking thecoherence barrier: A new theory for -
The bank of swimming organisms at the micron scale (BOSO-Micro)
www.damtp.cam.ac.uk/user/lauga/papers/195.pdf8 Jul 2021: GitHub [55], which can be supplemented with new data while retaining a version control. ... parameters and new organisms. Note that parts of our data for eukaryotic cells, particularly. -
Asymptotic theory of hydrodynamic interactions between slender…
www.damtp.cam.ac.uk/user/lauga/papers/196.pdf10 Sep 2021: 44), involves a new quantity that we havenot calculated explicitly yet—the tensor Pi j , defined in Eq. ... Below, we go into moredetail about the evaluation of the new row P1 j for helical filaments, which will be used later for thevalidation and
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