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Contractile and chiral activities codetermine the helicity of swimming droplet trajectories
(National Academy of SciencesProceedings of the National Academy of Sciences of the United States of America, 2017-05-02)
Active fluids are a class of nonequilibrium systems where energy is injected into the system continuously by the constituent particles themselves. Many examples, such as bacterial suspensions and actomyosin networks, are ...
Function of bacteriophage G7C esterase tailspike in host cell adsorption.
(Molecular microbiology, 2017-08)
Swimming with a cage: low-Reynolds-number locomotion inside a droplet
(Royal Society of ChemistrySoft Matter, 2017-05-07)
Inspired by recent experiments using synthetic microswimmers to manipulate droplets, we investigate the low-Reynolds-number locomotion of a model swimmer (a spherical squirmer) encapsulated inside a droplet of a comparable ...
Hadroquarkonium from lattice QCD
(American Physical SocietyPhyscial Review D, 2017-04-03)
he hadroquarkonium picture [S. Dubynskiy and M. B. Voloshin, Phys. Lett. B 666, 344 (2008)] provides one possible interpretation for the pentaquark candidates with hidden charm, recently reported by the LHCb Collaboration, ...
Meson Spectroscopy from Lattice QCD
(SpringerFew-Body Systems, 2017-05-01)
Some recent progress in using lattice QCD to perform first-principles calculations of the spectra of mesons is discussed. In particular, I highlight some new results on resonances, near-threshold states and related scattering ...
Topics in Computing with Quantum Oracles and Higher-Dimensional Many-Body Systems
(University of CambridgeDepartment of Applied Mathematics and Theoretical PhysicsTrinity College, 2017-06-08)
Since they were first envisioned, quantum computers have oft been portrayed as devices of limitless power, able to perform calculations in a mere instant that would take current computers years to determine. This is, of ...
Nonlinear evolution of linear optimal perturbations of strongly stratified shear layers
(Cambridge University PressJournal of Fluid Mechanics, 2017-08-25)
The Miles-Howard theorem states that a necessary condition for normal-mode instability in parallel, inviscid, steady stratified shear flows is that the minimum gradient Richardson number, $Ri_{g,min}$, is less than 1/4 ...
Mesoscale and Submesoscale Effects on Mixed Layer Depth in the Southern Ocean
(American Meteorological SocietyJournal of Physical Oceanography, 2017-09-01)
Submesoscale dynamics play a key role in setting the stratification of the ocean surface mixed layer and mediating air–sea exchange, making them especially relevant to anthropogenic carbon uptake and primary productivity ...
Bubble-based acoustic micropropulsors: active surfaces and mixers.
(Royal Society of ChemistryLab on a chip, 2017-04-04)
Acoustic micropropulsors present great potential for microfluidic applications. The propulsion is based on encapsulated 20 μm bubbles excited by a contacless ultrasonic transducer. The vibrating bubbles then generate a ...
The relaxation time for viscous and porous gravity currents following a change in flux
(Cambridge University PressJournal of Fluid Mechanics, 2017-06-01)
The equilibration time in response to a change in flux from Q to $\Lambda$Q after an injection period applied to either a low-Reynolds-number gravity current or one propagating through a porous medium, in both axisymmetric ...