UN rights council calls for AI transparency
The UN Human Rights Council on Friday called for transparency on the risks of artificial intelligence and for the data harvested by AI to be used responsibly.
Jul 14, 2023
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10
Machine learning & AI
The UN Human Rights Council on Friday called for transparency on the risks of artificial intelligence and for the data harvested by AI to be used responsibly.
Jul 14, 2023
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10
Machine learning & AI
New theoretical research proves that machine learning on quantum computers requires far simpler data than previously believed. The finding paves a path to maximizing the usability of today's noisy, intermediate-scale quantum ...
Jul 5, 2023
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88
Security
Toshiba Europe and global telecommunications corporation Orange say they have achieved a significant advance in securing network communications from ever-more powerful computer attacks.
Computer Sciences
A theoretical proof shows that a technique called overparametrization enhances performance in quantum machine learning for applications that stymie classical computers.
Jun 26, 2023
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155
Security
AI algorithms are everywhere. They underpin nearly all autonomous and robotic systems deployed in security applications. This includes facial recognition, biometrics, drones and autonomous vehicles used in combat surveillance ...
May 26, 2023
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76
Engineering
A prototype quantum sensor with potential applications in GPS-free navigation, developed at Imperial College London, has been tested in collaboration with the Royal Navy.
May 26, 2023
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298
Computer Sciences
In theory, quantum computers vastly outperform classical computers in terms of computing speed. For them to do so in practice, it is necessary to design more and novel high-speed algorithms, says ETH supercomputing specialist ...
May 26, 2023
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63
Electronics & Semiconductors
Semiconductor materials are the foundation of modern electronic, photonic, photovoltaic, thermoelectric and many other semiconductor devices, which are integral for computers, mobile phones, gadgets, home appliances, cars ...
Engineering
From access cards and key fobs to Bluetooth speakers, the security of communication between wireless devices is critical to maintaining privacy and preventing theft. Unfortunately, these tools are not foolproof and information ...
Apr 26, 2023
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97
Electronics & Semiconductors
To further advance communication systems, increasing both their speed and efficiency, electronics engineers will need to create new and highly performing components, including electromechanical resonators. Electromechanical ...
In physics, a quantum (plural: quanta) is an indivisible entity of a quantity that has the same units as the Planck constant and is related to both energy and momentum of elementary particles of matter (called fermions) and of photons and other bosons. The word comes from the Latin "quantus", for "how much." Behind this, one finds the fundamental notion that a physical property may be "quantized", referred to as "quantization". This means that the magnitude can take on only certain discrete numerical values, rather than any value, at least within a range. There is a related term of quantum number.
A photon is often referred to as a "light quantum". The energy of an electron bound to an atom (at rest) is said to be quantized, which results in the stability of atoms, and of matter in general. But these terms can be a little misleading, because what is quantized is this Planck's constant quantity whose units can be viewed as either energy multiplied by time or momentum multiplied by distance.
Usually referred to as quantum "mechanics", it is regarded by virtually every professional physicist as the most fundamental framework we have for understanding and describing nature at the infinitesimal level, for the very practical reason that it works. It is "in the nature of things", not a more or less arbitrary human preference.
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