Researchers have developed a new way to speed up quantum measurements, a vital building block for the next generation of quantum technologies.
Accurate and fast quantum measurements will be crucial for quantum technologies, but quantum systems are fragile and susceptible to disturbance which can cause errors. Previous work in this area presented a fundamental challenge—scientists were only able to increase the accuracy of measurements in quantum systems by sacrificing speed.
A team of quantum experts, led by the University of Bristol, have struck upon a novel way to overcome this problem, published in a Physical Review Letters journal paper.
Time crystals are a new form of matter that repeat through time without energy. This quantum breakthrough could revolutionize technology and computing forever.
A team of Rice University researchers has developed a new way to control light interactions using a specially engineered structure called a 3D photonic-crystal cavity. Their work, published in the journal Nature Communications, lays the foundation for technologies that could enable transformative advancements in quantum computing, quantum communication and other quantum-based technologies.
“Imagine standing in a room surrounded by mirrors,” said Fuyang Tay, an alumnus of Rice’s Applied Physics Graduate Program and first author of the study. “If you shine a flashlight inside, the light will bounce back and forth, reflecting endlessly. This is similar to how an optical cavity works—a tailored structure that traps light between reflective surfaces, allowing it to bounce around in specific patterns.”
These patterns with discrete frequencies are called cavity modes, and they can be used to enhance light-matter interactions, making them potentially useful in quantum information processing, developing high-precision lasers and sensors and building better photonic circuits and fiber-optic networks. Optical cavities can be difficult to build, so the most widely used ones have simpler, unidimensional structures.
Imagine the tiniest game of checkers in the world—one played by using lasers to precisely shuffle around ions across a very small grid.
That’s the idea behind a recent study published in the journal Physical Review Letters. A team of theoretical physicists from Colorado has designed a new type of quantum “game” that scientists can play on a real quantum computer—or a device that manipulates small objects, such as atoms, to perform calculations.
The researchers even tested their game out on one such device, the Quantinuum System Model H1 Quantum Computer developed by the company Quantinuum. The study is a collaboration between scientists at the University of Colorado Boulder and Quantinuum, which is based in Broomfield, Colorado.
In a recent study, researchers made a significant observation of the Berezinskii-Kosterlitz-Thouless (BKT) phase transition in a 2D dipolar gas of ultracold atoms. This work marks a milestone in understanding how 2D superfluids behave with long-range and anisotropic dipolar interactions. The researchers are an international team of physicists, led by Prof. Jo Gyu-Boong from the Department of Physics at the Hong Kong University of Science and Technology (HKUST).
Their findings are published in the journal Science Advances.
In conventional three-dimensional (3D) systems, phase transitions, such as ice melting into water, are governed by the spontaneous breakdown of symmetries. However, pioneering work in the 1970s predicted that two-dimensional (2D) systems could host a unique topological phase transition known as the BKT transition, where vortex-antivortex pairs drive superfluidity without conventional symmetry breaking, with interaction playing a crucial role. Since then, this phenomenon had primarily been studied in various quantum systems with only short-range isotropic contact interactions.
Scientists at EPFL have made a breakthrough in designing arrays of resonators, the basic components that power quantum technologies. This innovation could create smaller, more precise quantum devices.
Qubits, or quantum bits, are mostly known for their role in quantum computing, but they are also used in analog quantum simulation, which uses one well-controlled quantum system to simulate another more complex one. An analog quantum simulator can be more efficient than a digital computer simulation, in the same way that it is simpler to use a wind tunnel to simulate the laws of aerodynamics instead of solving many complicated equations to predict airflow.
Key to both digital quantum computing and analog quantum simulation is the ability to shape the environment with which the qubits are interacting. One tool for doing this effectively is a coupled cavity array (CCA), tiny structures made of multiple microwave cavities arranged in a repeating pattern where each cavity can interact with its neighbors. These systems can give scientists new ways to design and control quantum systems.
Quantum effects like superposition and entanglement have long been seen in single particles, but physicists are on a quest to find out just how big an object can be before it loses its quantumness
A study by researchers from the University of British Columbia’s Blusson Quantum Matter Institute (UBC Blusson QMI) has found a rare form of one-dimensional quantum magnetism in the metallic compound Ti4MnBi2, offering evidence into a phase space that has remained, until now, largely theoretical.
The study, published in Nature Materials, comes at a time of growing global interest in quantum materials that redefine the boundaries between magnetism, conductivity, and quantum coherence.
“We proved the existence of a new class of quantum materials that are both metallic and one-dimensional magnets, with strong coupling between the magnetic moments and their metallic host,” said UBC Blusson QMI Investigator Prof. Meigan Aronson.
“Disembodied Brains: Understanding our Intuitions on Human-Animal Neuro-Chimeras and Human Brain Organoids” by John H. Evans Book Link: https://amzn.to/40SSifF “Introduction to Organoid Intelligence: Lecture Notes on Computer Science” by Daniel Szelogowski Book Link: https://amzn.to/3Eqzf4C “The Emerging Field of Human Neural Organoids, Transplants, and Chimeras: Science, Ethics, and Governance” by The National Academy of Sciences, Engineering and Medicine Book Link: https://amzn.to/4hLR1Oe (Affiliate links: If you use these links to buy something, I may earn a commission at no extra cost to you.) Playlist: • Two AI’s Discuss: The Quantum Physics… The hosts explore the ethical and scientific implications of brain organoids and synthetic biological intelligence (SBI). Several sources discuss the potential for consciousness and sentience in these systems, prompting debate on their moral status and the need for ethical guidelines in research. A key focus is determining at what point, if any, brain organoids or SBI merit moral consideration similar to that afforded to humans or animals, influencing research limitations and regulations. The texts also examine the use of brain organoids as a replacement for animal testing in research, highlighting the potential benefits and challenges of this approach. Finally, the development of “Organoid Intelligence” (OI), combining organoids with AI, is presented as a promising but ethically complex frontier in biocomputing. Our sources discuss several types of brain organoids, which are 3D tissue cultures derived from human pluripotent stem cells (hPSCs) that self-organize to model features of the developing human brain. Here’s a brief overview: • Cerebral Organoids: This term is often used interchangeably with “brain organoids”. They are designed to model the human neocortex and can exhibit complex brain activity. These organoids can replicate the development of the brain in-vitro up to the mid-fetal period. • Cortical Organoids: These are a type of brain organoid specifically intended to model the human neocortex. They are formed of a single type of tissue and represent one important brain region. They have been shown to develop nerve tracts with functional output. • Whole-brain Organoids: These organoids are not developed with a specific focus, like the forebrain or cerebellum. They show electrical activity very similar to that of preterm infant brains. • Region-specific Organoids: These are designed to model specific regions of the brain such as the forebrain, midbrain, or hypothalamus. For example, midbrain-specific organoids can contain functional dopaminergic and neuromelanin-producing neurons. • Optic Vesicle-containing Brain Organoids (OVB-organoids): These organoids develop bilateral optic vesicles, which are light sensitive, and contain cellular components of a developing optic vesicle, including primitive corneal epithelial and lens-like cells, retinal pigment epithelia, retinal progenitor cells, axon-like projections, and electrically active neuronal networks. • Brain Assembloids: These are created when organoids from different parts of the brain are placed next to each other, forming links. • Brainspheres/Cortical Spheroids: These are simpler models that primarily resemble the developing in-vivo human prenatal brain, and are particularly useful for studying the cortex. Unlike brain organoids, they do not typically represent multiple brain regions. • Mini-brains: This term has been debunked in favor of the more accurate “brain organoid”. These various types of brain organoids offer diverse models for studying brain development, function, and disease. Researchers are also working to improve these models by incorporating features like vascularization and sensory input. #BrainOrganoids #organoid #Bioethics #OrganoidIntelligence #WetwareComputing #Sentience #ArtificialConsciousness #Neuroethics #AI #Biocomputing #NeuralNetworks #ConsciousnessResearch #PrecautionaryPrinciple #AnimalTestingAlternatives #ResearchEthics #EmergingTechnology #skeptic #podcast #synopsis #books #bookreview #ai #artificialintelligence #booktube #aigenerated #documentary #alternativeviews #aideepdive #science #hiddenhistory #futurism #videoessay #ethics
