RSS
 

Arquivo para a ‘Computação Quantica’ Categoria

Industrial scale qubit chip

21 May

The quantum chip (qbit or quBit) can now go on an industrial scale, a team of researchers from Denmark and the US announced last month that the technology is ready.
The problem was to scale up in such a way that computers could use chips, so far the qubits’ quantum computing was not robust enough to operate in noisy environments on a full computer.
Another problem was scale production, out of specialized laboratory and produced in conventional factories, they had to work with the semiconductors and normal circuit boards, with a combination of the semiconductors of conventional chips with aluminum and aluminum arsenide, the part industrial revolution is solved.
The team is led by Professor Antonio Fornieri, who has built a quantum memory chip and promises that quantum computers can now be produced in scale. the most resilient qubits by a combination of a semiconductor, the Indian arsenide, with a superconductor, aluminum, in a planar device, called the so-called Josephson junction, capable of treating Majorana quasi-particles.
Majorana quasiparticles are zero-mode fermions, which emerge on the surface of topological superconductors, which function as fault-tolerant and noise-free qubits.
The teacher Fornieri said: “Our prototype is a significant first step in using this kind of system to make quantum bits that are protected against disturbances.” “We still need some adjustments at the moment – we can improve design and materials, but it’s a potentially perfect structure.”.
The article was published in Nature and is authored by Fornieri and his team: Antonio Fornieri, Alexander M. Whiticar, F. Setiawan, Elias Portolés, Asbjørn CC Drachmann, Anna Keselman, Sergei Gronin, Candice Thomas, Tian Wang, Ray Kallaher, Geoffrey C. Gardner, Erez Berg, Michael J. Manfra, Ady Stern, Charles M. Marcus, Fabrizio Nichele, Evidence of Topological Superconductivity in Planar Josephson Junctions. Nature Vol .: 569, pages 89-92.
The following video explains the who Qubits working:

 

The paraconsistent logic

25 Sep

Kurt Gödel’s paradox, that a complete system is inconsistent was fundamental to a new phase in formal logical principles, and cooperated with the emergence of the computer.

It was the Peruvian philosopher Francisco Miró Quesada, unknown to many Latin American scholars, who coined the word paraconsistent in 1976.

The Brazilian Newton da Costa who developed this theory has become very important in several areas, including philosophy and Artificial Intelligence. In the figure, the axis to the side that goes from u 0  and u  1 ,  is called degree of belief, but the truth has points A for consistent and C for inconsistent, having a lot of application to everyday life.

The study applied to semantics mainly explores paradoxes, for example, it can be said that a blind man sees certain circumstances, also the study of different forms of perception and abilities can help the parameters of the deep mind.

We have already stated that neologicism can precisely help AI in this phase of deep intelligence, for example, in the study of natural languages, the language of everyday life.

The idea that A and non-A could exist was inconceivable in Western philosophy, is the principle of the excluded third, which comes from Parmenides and was consolidated in Aristotle. Paraconsistent logics are purposively more “weak,” terms to refer to this break with classical logic, for they solve few valid propositional inferences in the classical sense of logic The logic of paraconsistent languages, however, are more conservative than those of classical counterparts, and this changes Alfred Tarski‘s hierarchy of metalanguage.

The influence on natural language was anticipated in 1984 by Solomon Feferman who stated “… natural language abounds in expressions directly or indirectly self-referential, although seemingly harmless, all of which are excluded from the, because in daily life, in truth we are paraconsistentes

 

Quantum physics and politics

24 Sep

Mechanical physics, especially the celestial mechanics of Sir Isaac Newton, took the idea of ​​cause and effect in the same proportions of a mechanical machine, it is said popularly to each cause there is a contrary reaction in the opposite direction, it was for politics as ” man werewolf “of Hobbes.

Then came the empiricism of Hume, in fact it is more connected to the theory of knowledge, which comes from the idea that I can only say something from my sensory experience, just as mechanicism, all knowledge and object of it is out of being and only there are perceptions. With politics, it is what the masters of political marketing exploit, working with people’s emotions so as not to give them a reference to the truth, but to deceive them.

The critique of this political “philosophy”, since the subject is more comprehensive, comes from the middle ages where in 1200 it was already defined as “state science”, but all criticism of this set of empirical and idealistic ideas is called Empirical-criticism,

Marx developed it but later was updated by the Microphysics of Power, the idea no longer of the state but of the power that constitutes the “individual”, which Peter Sloterdijk, Gadamer, Ricoeur and others consider already already surpassed.

If we want to adapt the quantum physics of the physical world to the world on the human scale, which is ontological, we can think that there are two possible, more democratic strands that lead to the understanding of the world as Nature and the other as the search for “the Just” .

John Rawls, Habermas and Michael Sandel, all still strongly influenced by so-called “critical theory”, and in the matter of Nature thoughts Hannah Arendt, Raymond Aron, Norberto Bobbio, Phillip Pettit, Robert Nozick, and of course there is others.

The assertions of quantum physics with the infinitely small (the particles) and the infinitely large (the bodies in the universe) change our idea of ​​causality, in politics of which the winners tell the story, for in quantum physics the energy dimension, mass and energy that is 94% of the universe, and has an influence on it, would be an approach of the collective unconscious, the forces that do not appear and that influence the political process, present in the “unconscious.”

Another important part is that the observer’s gaze defines reality, so the suspect idea of ​​neutrality has been overcome, Werner Heisenberg, Eugene Wigner, Roger Penrose, and Erwin Schorodinger have developed this quantum view.

In politics it means that the sight of simple people does influence politics, education is essential to democracy, and only manipulating it into a disaster

 

Material can help quantum chips

08 Aug

Researchers at the University of Central Florida (UCF) have discovered a type of material that could be used as a “building block” of quantum chips, consisting of hafnium, tellurium and phosphorus, Hf2Te2P.
According to UFC researcher Madabe Neupane, “Our discovery takes us one step closer to the application of quantum materials and helps us gain a deeper understanding of the interactions between various quantum phases.”
The material has more than one electron pattern that develops within its electronic structure, giving it a range of quantum properties. Neupane says that this material will increase computing power for large volumes of data on new devices and will considerably reduce the amount of power needed for power electronics.
The discovery has already attracted companies that are investing in research, Microsoft for example invested in its project called Station Q, the laboratory that is dedicated to the field of topological quantum computing, and Google has teamed up with NASA in an investment that works with quantum computing and artificial intelligence.
Because quantum phenomena need to be better understood so that electronics are totally replaced by photonics and quantum computation, computational scenario changes tend to change rapidly and continuously.
The discovery of Neupane’s lab is published in Nature Communications, and is a big step forward for this change of scenario.