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Computing the Cassels-Tate pairing
(University of CambridgeDepartment of Pure Mathematics and Mathematical Statistics, 2015-11-10)
Birational geometry of hypersurfaces in products of projective spaces
(SpringerMathematische Zeitschrift, 2015)
We study the birational properties of hypersurfaces in products of projective spaces. In the case of hypersurfaces in Pm x Pn, we describe their nef, movable and e ective cones and determine when they are Mori dream ...
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 ...
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. ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...