Zobrazeno 1 - 10
of 126
pro vyhledávání: '"G. M. Lewis"'
Publikováno v:
Nonlinear Processes in Geophysics, Vol 29, Pp 219-239 (2022)
A column model of the Arctic atmosphere is developed including the nonlinear positive feedback responses of surface albedo and water vapour to temperature. The atmosphere is treated as a grey gas and the flux of longwave radiation is governed by the
Externí odkaz:
https://doaj.org/article/607806a19d4d4ffabf9af6afb5ecb808
Autor:
O, Stonehouse, D, Stefanovski, B, Bowman, P L, Sertich, J, Demchur, G M, Lewis, R M, Turner, R M O, Turner
Publikováno v:
Theriogenology. 192:52-61
Nocardioform placentitis (NP) has been associated with mid to late pregnancy loss in mares. To date, disease outbreaks have been described only in central Kentucky, although sporadic, isolated cases have been reported globally. This study describes a
Autor:
Ryan Pederson, John Kozlowski, Ruyi Song, Jackson Beall, Martin Ganahl, Markus Hauru, Adam G. M. Lewis, Yi Yao, Shrestha Basu Mallick, Volker Blum, Guifre Vidal
We demonstrate the use of Google's cloud-based Tensor Processing Units (TPUs) to accelerate and scale up conventional (cubic-scaling) density functional theory (DFT) calculations. Utilizing 512 TPU cores, we accomplish the largest such DFT computatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::402e574093de94ba5f4bac0ee95d48c4
Autor:
Adam G. M. Lewis, Jackson Beall, Martin Ganahl, Markus Hauru, Shrestha Basu Mallick, Guifre Vidal
We have repurposed Google Tensor Processing Units (TPUs), application-specific chips developed for machine learning, into large-scale dense linear algebra supercomputers. The TPUs' fast inter-core interconnects (ICI)s, physically two-dimensional netw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c374c461aa5f2454a72408cd782c347e
Autor:
Adam G. M. Lewis
Publikováno v:
Physical Review D. 101
The Hadamard renormalization procedure is applied to a free, massive Dirac field $\ensuremath{\psi}$ on a two-dimensional Lorentzian spacetime. This yields the state-independent divergent terms in the Hadamard bispinor ${G}^{(1)}(x,{x}^{\ensuremath{'
Autor:
Lucien Hardy, Adam G. M. Lewis
We describe how one may go about performing quantum computation with arbitrary "quantum stuff", as long as it has some basic physical properties. Imagine a long strip of stuff, equipped with regularly spaced wires to provide input settings and to rea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97f3df540526a221382ad424eee7e01d
http://arxiv.org/abs/1911.13282
http://arxiv.org/abs/1911.13282
Autor:
Guifre Vidal, Adam G. M. Lewis
Publikováno v:
Quantum, Vol 4, p 351 (2020)
We numerically compute renormalized expectation values of quadratic operators in a quantum field theory (QFT) of free Dirac fermions in curved two-dimensional (Lorentzian) spacetime. First, we use a staggered-fermion discretization to generate a sequ
Autor:
Adam G. M. Lewis, Harald P. Pfeiffer
Publikováno v:
Classical and Quantum Gravity
We present a port of the numerical relativity code SpEC which is capable of running on NVIDIA GPUs. Since this code must be maintained in parallel with SpEC itself, a primary design consideration is to perform as few explicit code changes as possible
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9a3fe35bb81e1692f8119d6721a25eb
http://arxiv.org/abs/1804.09101
http://arxiv.org/abs/1804.09101
Binary black holes which are both eccentric and undergo precession remain unexplored in numerical simulations. We present simulations of such systems which cover about 50 orbits at comparatively high mass ratios 5 and 7. The configurations correspond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8514cfdceb206c05752b8e19665d637a
http://arxiv.org/abs/1611.03418
http://arxiv.org/abs/1611.03418
Publikováno v:
Physical review letters. 117(19)
The redshift factor $z$ is an invariant quantity of fundamental interest in post-Newtonian and self-force descriptions of compact binaries. It connects different approximation schemes, and plays a central role in the first law of binary black hole me