Open Access Repositories: Recent submissions
Now showing items 341-360 of 4204
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Light Sparticles from a Light Singlet in Gauge Mediation
(APSPhysics Review D, 2015-07-10)We revisit a simple model that combines minimal gauge mediation and the next-to-minimal supersymmetric standard model. We show that one can obtain a 125 GeV Standard Model-likeHiggs boson with stops as light as 1.1 TeV, ...
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On the generation of waves during frontogenesis
(University of CambridgeDepartment of Applied Mathematics and Theoretical Physics, 2015-06-30)Density fronts are ubiquitous features of the ocean and atmosphere boundary layers. Boundary layers are characterised by strong surface fluxes of heat, water and momentum, and exhibit intense eddy fields that are associated ...
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Non-parametric Image Registration of Airborne LiDAR, Hyperspectral and Photographic Imagery of Wooded Landscapes
(IEEEIEEE Transactions on Geoscience and Remote Sensing, 2015-06-02)There is much current interest in using multisensor airborne remote sensing to monitor the structure and biodiversity of woodlands. This paper addresses the application of nonparametric (NP) image-registration techniques ...
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Metachronal waves in the flagellar beating of Volvox and their hydrodynamic origin
(Royal Society PublishingJournal of the Royal Society Interface, 2015-06-03)Groups of eukaryotic cilia and flagella are capable of coordinating their beating over large scales, routinely exhibiting collective dynamics in the form of metachronal waves. The origin of this behaviour—possibly influenced ...
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Spin alignment and differential accretion in merging black-hole binaries
(Oxford University PressMonthly Notices of the Royal Astronomical Society, 2015-06-29)Interactions between a supermassive black-hole binary and the surrounding accretion disc can both assist the binary inspiral and align the black-hole spins to the disc angular momentum. While binary migration is due to ...
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Thin-sheet flow between coalescing bubbles
(Cambridge University PressJournal of Fluid Mechanics, 2015-05-20)When two spherical bubbles touch, a hole is formed in the fluid sheet between them, and capillary pressure acting on its tightly curved edge drives an outward radial flow which widens the hole joining the bubbles. Recent ...
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Research data supporting "Assessment of ice flow dynamics in the zone close to the calving front of Antarctic ice shelves"
(Journal of Glaciology, 2015-06-11)
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Stratosphere-troposphere coupling in the Earth System: where next?
(WileyWeather, 2015)
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Self-organisation of confined active matter
(University of CambridgeDepartment of Applied Mathematics and Theoretical Physics, 2015-06-09)Active matter theory studies the collective behaviour of self-propelled organisms or objects. Although the field has made great progress in the past decade, little is known of the role played by confinement and surfaces. ...
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Complexity Classification of Local Hamiltonian Problems
(IEEEIEEE Symposium on Foundations of Computer Science, 2015-10-22)The calculation of ground-state energies of physical systems can be formalised as the k-local Hamiltonian problem, which is the natural quantum analogue of classical constraint satisfaction problems. One way of making the ...
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Consistency of the recent ATLAS Z+E_T^miss excess in a simplified general gauge mediation model
(APSPhysical Review D, 2015-05-20)ATLAS recently reported a 3σ excess in a leptonic-Z+E_T^miss channel. This was interpreted in the literature in a simplified general gauge mediation model containing a gluino, a Higgsino next-to-lightest supersymmetric ...
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Rapid mixing renders quantum dissipative systems stable
(APSPhysical Review A, 2015-04-09)The physics of many materials is modeled by quantum many-body systems with local interactions. If the model of the system is sensitive to noise from the environment, or small perturbations to the original interactions, ...
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Post-inflationary non-Gaussianities on the cosmic microwave background
(University of CambridgeDepartment of Applied Mathematics and Theoretical PhysicsTrinity Hall, 2015-06-30)The cosmic microwave background (CMB) provides unprecedented details about the history of our universe and helps to establish the standard model in modern cosmology. With the ongoing and future CMB observations, higher ...
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Unbounded number of channel uses may be required to detect quantum capacity
(NPGNature Communications, 2015-03-31)Transmitting data reliably over noisy communication channels is one of the most important applications of information theory, and is well understood for channels modelled by classical physics. However, when quantum effects ...
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Stability of local quantum dissipative systems
(SpringerCommunications in Mathematical Physics, 2015-04-07)Open quantum systems weakly coupled to the environment are modeled by completely positive, trace preserving semigroups of linear maps. The generators of such evolutions are called Lindbladians. In the setting of ...
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Plethora of transitions during breakup of liquid filaments
(PNASProceedings of the National Academy of Sciences, 2015-03-30)Thinning and breakup of liquid filaments are central to dripping of leaky faucets, inkjet drop formation, and raindrop fragmentation. As the filament radius decreases, curvature and capillary pressure, both inversely ...
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Stability analysis of matrix Wiener–Hopf factorization of Daniele–Khrapkov class and reliable approximate factorization
(Royal Society PublishingProceedings of the Royal Society of London A, 2015-05-06)This paper presents new stability results for matrix Wiener–Hopf factorization. The first part of the paper examines conditions for stability of Wiener–Hopf factorization in the Daniele–Khrapkov class. The second part of ...
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The relationship between a strip Wiener--Hopf problem and a line Riemann--Hilbert problem
(OUPIMA Journal of Applied Mathematics, 2015-03-31)In this paper, the Wiener–Hopf factorization problem is presented in a unified framework with the Riemann–Hilbert factorization. This allows to establish the exact relationship between the two types of factorization. In ...
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Liquid Ropes: A Geometrical Model for Thin Viscous Jet Instabilities
(APSPhysical Review Letters, 2015-04-30)Thin, viscous fluid threads falling onto a moving belt behave in a way reminiscent of a sewing machine, generating a rich variety of periodic stitchlike patterns including meanders, W patterns, alternating loops, and ...
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Lubricated viscous gravity currents
(CUPJournal of Fluid Mechanics, 2015-02-10)We present a theoretical and experimental study of viscous gravity currents lubricated by another viscous fluid from below. We use lubrication theory to model both layers as Newtonian fluids spreading under their own weight ...
