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Mar 30, 2024
Entangled Titans: unraveling the mysteries of Quantum Mechanics with top quarks
Posted by Cecile G. Tamura in categories: particle physics, quantum physics
đ Top quark and top antiquark entanglement đ
The CMS experiment has just reported the observation and confirms the existence of #entanglement between the top #quark and its #Antiparticle beyond reasonable doubt.
The CMS experiment has just reported the observation of quantum entanglement between a top quark and a top antiquark, simultaneously produced at the LHC.
Continue reading “Entangled Titans: unraveling the mysteries of Quantum Mechanics with top quarks” »
Mar 30, 2024
Scientists Find Microplastics in Cave Sealed Off From All Humans
Posted by Kelvin Dafiaghor in category: particle physics
Even a cave thatâs been closed to the public for three decades canât escape the reach of microplastic particles.
Mar 30, 2024
The James Webbâs Beautiful Images Actually Arrive in Black and White
Posted by Kelvin Dafiaghor in category: space
This just in: the James Webb Space Telescope (JWST) is a Tumblr girl, actually.
Since its launch in 2022, the JWST has dazzled the masses with spectacular photos of interstellar sights like the pillars of creation, exploding stars, and â checks notes â squirting moons.
While the public sees those images are seen in striking color, though, thatâs not actually how the JWST captures them. As Space.com reports, images snapped by the advanced telescope first arrive to researchers in black and white, and are then colored back on Earth by scientists who use data to make a well-educated guess as to what the cosmic bodies in the pictures might look like in the spectrum of visible light.
Mar 30, 2024
Google DeepMind unveils âsuperhumanâ AI system that excels in fact-checking, saving costs and improving accuracy
Posted by Kelvin Dafiaghor in category: robotics/AI
Google DeepMind researchers have developed a new AI system that excels in fact-checking, outperforming human annotators and saving costs, but critics question what âsuperhumanâ really means in this context.
Mar 30, 2024
What is quantum cognition, and how is it applied to psychology?
Posted by Dan Breeden in categories: computing, mathematics, neuroscience, quantum physics
Quantum cognition is a new research program that uses mathematical principles from quantum theory as a framework to explain human cognition, including judgment and decision making, concepts, reasoning, memory, and perception. This research is not concerned with whether the brain is a quantum computer. Instead, it uses quantum theory as a fresh conceptual framework and a coherent set of formal tools for explaining puzzling empirical findings in psychology. In this introduction, we focus on two quantum principles as examples to show why quantum cognition is an appealing new theoretical direction for psychology: complementarity, which suggests that some psychological measures have to be made sequentially and that the context generated by the first measure can influence responses to the next one, producing measurement order effects, and superposition, which suggests that some psychological states cannot be defined with respect to definite values but, instead, that all possible values within the superposition have some potential for being expressed. We present evidence showing how these two principles work together to provide a coherent explanation for many divergent and puzzling phenomena in psychology. (PsycInfo Database Record © 2020 APA, all rights reserved)
Mar 30, 2024
Quantum Logic and Probability Theory
Posted by Dan Breeden in categories: law, quantum physics
This second position, while certainly not inconsistent with realism per se, turns upon a distinction involving a notion of âobservationâ, âmeasurementâ, âtestâ, or something of this sortâa notion that realists are often at pains to avoid in connection with fundamental physical theory. Of course, any realist account of a statistical physical theory such as quantum mechanics will ultimately have to render up some explanation of how measurements are supposed to take place. That is, it will have to give an account of which physical interactions between âobjectâ and âprobeâ systems count as measurements, and of how these interactions cause the probe system to evolve into final âoutcome-statesâ that correspond toâand have the same probabilities asâthe outcomes predicted by the theory. This is the notorious measurement problem.
In fact, Putnam advanced his version of quantum-logical realism as offering a (radical) dissolution of the measurement problem: According to Putnam, the measurement problem (and indeed every other quantum-mechanical âparadoxâ) arises through an improper application of the distributive law, and hence disappears once this is recognized. This proposal, however, is widely regarded as mistaken.[4]
As mentioned above, realist interpretations of quantum mechanics must be careful in how they construe the phrase âthe observable Aâ A A has a value in the set Bâ B Bâ. The simplest and most traditional proposalâoften dubbed the âeigenstate-eigenvalue linkâ (Fine [1973])âis that (âą holds if and only if a measurement of Aâ A A yields a value in the set Bâ B B with certainty, i.e., with (quantum-mechanical!) probability 1. While this certainly gives a realist interpretation of (âą,[5] it does not provide a solution to the measurement problem. Indeed, we can use it to give a sharp formulation of that problem: even though Aâ A A is certain to yield a value in Bâ B B when measured, unless the quantum state is an eigenstate of the measured observable Aâ A A, the system does not possess any categorical property corresponding to Aâ A A âs having a specific value in the set Bâ B B.
Mar 30, 2024
Company uses wall of lava lamps to create âunhackableâ code that protects people on the internet
Posted by Shubham Ghosh Roy in category: futurism
Mar 30, 2024
Mystery of unexplained kidney disease revealed to patients
Posted by Shubham Ghosh Roy in category: biotech/medical
Scientists have identified a new method of analysing genomic data in a major discovery that means patients with unexplained kidney failure are finally getting a diagnosis.