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Now showing items 81-90 of 221
Estimating the location and size of retinal injections from orthogonal images of an intact retina
(BioMed CentralBMC Neuroscience, 2015-11-21)
Background :
To study the mapping from the retina to the brain, typically a small region of the retina is injected with a dye, which then propagates to the retina's target structures. To determine the location of the ...
Coupled ππ, KK̅ scattering in P-wave and the ρ resonance from lattice QCD
(APSPhysical Review D, 2015-11-02)
We determine elastic and coupled-channel amplitudes for isospin-1 meson-meson scattering in P-wave, by calculating correlation functions using lattice QCD with light quark masses such that m_π = 236 MeV in a cubic volume ...
Graviton time delay and a speed limit for small black holes in Einstein-Gauss-Bonnet theory
(SpringerJournal of High Energy Physics, 2015-11-17)
Camanho, Edelstein, Maldacena and Zhiboedov have shown that gravitons can experience a negative Shapiro time delay, i.e. a time advance, in Einstein-Gauss-Bonnet theory. They studied gravitons propagating in singular ...
The resonant π+γ → π+π⁰ amplitude from Quantum Chromodynamics
(APSPhysical Review Letters, 2015-12-08)
We present the first ab initio calculation of a radiative transition of a hadronic resonance within Quantum Chromodynamics (QCD). We compute the amplitude for ππ → πγ* , as a function of the energy of the ππ pair and the ...
The Quantum Hall Effect in Supersymmetric Chern-Simons Theories
(APSPhysical Review B, 2015-12-15)
We introduce a supersymmetric Chern-Simons theory whose low energy physics is that of the fractional quantum Hall effect. The supersymmetry allows us to solve the theory analytically. We quantise the vortices and, by ...
Editorial: Understanding neural organization using statistical analysis and computational modelling: from single cells to large-scale networks
(FrontiersFrontiers in Neuroanatomy, 2015-10-26)
A regularised singularity approach to phoretic problems
(SpringerThe European Physical Journal E, 2015-12-28)
An efficient, accurate, and flexible numerical method is proposed for the solution of the swimming problem of one or more autophoretic particles in the purely diffusive limit. The method relies on successive boundary element ...
Precessional instability in binary black holes with aligned spins
(American Physical SocietyPhysical Review Letters, 2015-10-02)
Binary black holes on quasicircular orbits with spins aligned with their orbital angular momentum
have been testbeds for analytic and numerical relativity for decades, not least because symmetry
ensures that such configurations ...
Worldsheet methods for perturbative quantum field theory
(University of CambridgeDepartment of Applied Mathematics and Theoretical PhysicsTrinity College, 2015-10-01)
This thesis is divided into two parts. The first part concerns the study of the ambitwistor string and the scattering equations, while the second concerns the interplay of the symmetries of the asymptotic null boundary of ...
A two-zone model for natural cross-ventilation
(ElsevierBuilding and Environment, 2015-07-01)
Cross-ventilation flows (CV) are characterized by significant inflow momentum conservation as fluid flows across an enclosed rectangular volume as a confined jet. When the inflow area is smaller than the volume cross-sectional ...