We live in the age of big data, but most of that data is "sparse." Imagine, for instance, a massive table that mapped all of Amazon's customers against all of its products, with a "1" for each product a given customer bought ...
Computer Sciences
Oct 31, 2017
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2632
Computing the dynamics of many interacting quantum particles accurately is a daunting task. There is however a promising calculation method for such systems: tensor networks, which are being researched in the theory division ...
Quantum Physics
May 29, 2019
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297
Tensor networks take a central role in quantum physics as they can provide an efficient approximation to specific classes of quantum states. The associated graphical language can also easily describe and pictorially reason ...
Scientists have used an imaging technique to reconstruct the brain architecture and neural networks of the thylacine—better known as the Tasmanian tiger—an extinct carnivorous marsupial native to Tasmania. The study, ...
Plants & Animals
Jan 18, 2017
0
282
Through a new survey, researchers show how mathematical representations named 'tensor trains' can help to capture and simulate the dynamics of evolving quantum systems across a range of different scenarios.
Quantum Physics
Aug 10, 2023
0
182
Inside the proton are elementary particles called quarks. Quarks and protons have an intrinsic angular momentum called spin. Spin can point in different directions. When it is perpendicular to the proton's momentum, it is ...
General Physics
May 1, 2023
4
49
Theoretical physicists routinely introduce fictitious particles and fields in their calculations, in view of completing a theory or simply to make it more elegant. A striking example concerns the magnetic monopole imagined ...
Quantum Physics
Mar 22, 2022
1
318
The nuclear force that holds protons and neutrons together in the center of atoms has a non-central component—the tensor force, which depends on the spin and relative position of the interacting particles.
General Physics
Dec 19, 2018
0
102
Five years ago, Emory neuroscientist Gregory Berns became the first to capture images of actual canine thought processes. To explore the minds of the oldest domesticated species, the Berns lab trained dogs to remain still ...
Plants & Animals
Sep 8, 2017
0
36
The extended Coulomb failure stress (ECFS) criteria and anisotropic porosity and permeability tensor at micro/meso/macro scale under ultra‑high temperature and pressure (UTP) conditions were developed employing the ...
Earth Sciences
Jul 13, 2011
1
0
