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Category: quantum physics – Page 302

Sean Carroll is a theoretical physicist who serves as a Homewood Professor of Natural Philosophy at Johns Hopkins University. Carroll strives to convey complicated physics concepts in accessible terms on his Mindscape podcast and in his popular books, including last year’s The Biggest Ideas in the Universe: Space, Time, and Motion. He joins Preet to talk about the relationship between science and philosophy, how to comprehend quantum mechanics, and whether there are billions of similar universes operating alongside our own.

Plus, Special Counsel David Weiss’s testimony in front of the House Judiciary Committee about the Hunter Biden prosecution and Trump’s reported plan to use the Department of Justice for revenge if he retakes the presidency.

Don’t miss the Insider bonus, where Preet and Carroll talk more about depictions of time travel in Hollywood films. To listen, become a member of CAFE Insider for $1 for the first month. Head to cafe.com/insider.

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Quantum materials hold the key to a future of lightning-speed, energy-efficient information systems. The problem with tapping their transformative potential is that in solids, the vast number of atoms often drowns out the exotic quantum properties electrons carry.

Rice University researchers in the lab of quantum materials scientist Hanyu Zhu found that when they move in circles, atoms can also work wonders: When the in a rare-earth crystal becomes animated with a corkscrew-shaped vibration known as a chiral phonon, the crystal is transformed into a magnet.

According to a new study published in Science, exposing cerium fluoride to ultrafast pulses of light sends its atoms into a dance that momentarily enlists the spins of electrons, causing them to align with the atomic rotation. This alignment would otherwise require a powerful magnetic field to activate, since cerium fluoride is naturally paramagnetic with randomly oriented spins even at zero temperature.

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When you think of empty space, you almost certainly imagine a vacuum in which nothing interesting can ever happen. However, if we zoom in to tiny length scales where quantum effects start to become important, it turns out that what you thought was empty is actually filled at all times with a seething mass of electromagnetic activity, as virtual photons flicker in and out of existence. This unexpected phenomenon is known as the vacuum fluctuation field. However, because these fluctuations of light energy are so small and fleeting in time, it is difficult to find ways for matter to interact with them, especially within a single, integrated device.

In a study published this month in Nano Letters (“Electrical Detection of Ultrastrong Coherent Interaction between Terahertz Fields and Electrons Using Quantum Point Contacts”), researchers from the Institute of Industrial Science, The University of Tokyo succeeded in fabricating a single nanoscale hybrid system for doing exactly this. In their design, a quantum point contact connects a single on-chip split-ring resonator with a two-dimensional electron system.

Quantum Hall edge channels at the quantum point contact. (Image: University of Tokyo)

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A method developed at the University of Duisburg-Essen makes it possible to read data from noisy signals. Theoretical physicists and their experimental colleagues have published their findings in the current issue of Physical Review Research. The method they describe could also be significant for quantum computers.

You know it from the car radio: The weaker the signal, the more disturbing the . This is even more true for laboratory measurements. Researchers from the Collaborative Research Center 1,242 and the Center for Nanointegration (CENIDE) at the University of Duisburg-Essen (UDE) have now described a method for extracting data from noise.

What is a bit in a conventional computer, i.e., state 1 (current on) or state 0 (current off), is taken over in the quantum computer by the quantum bits, or qubits for short. To do this, they need defined and distinguishable states, but they can overlap at the same time and therefore enable many times the computing power of a current computer. This means they could also be used where today’s supercomputers are overtaxed, for example in searching extremely large databases.

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Not a perfect presentation but a quantum Internet will be nice. The question is, how will bad actors/Black Hat hackers adapt?

Dive into the mind-bending future of technology with our latest video, Quantum Internet Will Change The World In this groundbreaking exploration, we unravel the mysteries of quantum computing and its revolutionary potential to transform the way we connect online. Discover how quantum entanglement and superposition are reshaping the internet landscape, promising unparalleled security, lightning-fast speeds, and unimaginable data processing capabilities.

Join us on this journey through the quantum realm, where the laws of physics blur, and the internet as we know it takes a quantum leap into the future. Prepare to be amazed by the limitless possibilities that await in the world of quantum internet. Don’t miss out on this quantum revolution! Hit that subscribe button, click the notification bell, and stay tuned for more mind-expanding content. #QuantumInternet #FutureTech #InnovationRevolution #QuantumComputing #TechBreakthroughs #ai #thetechailab.tunnelvison

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Scientists at Oak Ridge National Laboratory have used their expertise in quantum biology, artificial intelligence and bioengineering to improve how CRISPR Cas9 genome editing tools work on organisms like microbes that can be modified to produce renewable fuels and chemicals.

CRISPR is a powerful tool for bioengineering, used to modify to improve an organism’s performance or to correct mutations. The CRISPR Cas9 tool relies on a single, unique guide RNA that directs the Cas9 enzyme to bind with and cleave the corresponding targeted site in the genome.

Existing models to computationally predict effective guide RNAs for CRISPR tools were built on data from only a few model species, with weak, inconsistent efficiency when applied to microbes.

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Researchers from the Niels Bohr Institute (NBI) have removed a key obstacle for development of extremely sensitive monitoring devices based on quantum technology.

Monitoring the heartbeat of an unborn child and other types of delicate medical examinations show the potential of . Since these sensors exploit phenomena at the scale of atoms, they can be far more accurate than today’s sensors.

Researchers from the Niels Bohr Institute (NBI), University of Copenhagen, have managed to overcome a major obstacle for development of quantum sensors. Their results are published in Nature Communications.

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A new theoretical approach allows the alteration of α-RuCl3’s magnetic properties through quantum fluctuations in an optical cavity, providing a laser-free avenue for material manipulation.

Researchers in Germany and the USA have produced the first theoretical demonstration that the magnetic state of an atomically thin material, α-RuCl3, can be controlled solely by placing it into an optical cavity. Crucially, the cavity vacuum fluctuations alone are sufficient to change the material’s magnetic order from a zigzag antiferromagnet into a ferromagnet. The team’s work has been published in the scientific journal npj Computational Materials.

Advancements in Material Physics.

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In a new study, researchers from the University of California, Santa Barbara, (UCSB) have reported the discovery of a spin microemulsion in two-dimensional systems of spinor Bose-Einstein condensates, shedding light on a novel phase transition marked by the loss of superfluidity, complex pseudospin textures, and the emergence of topological defects.

A Bose-Einstein (B-E) condensate is a that occurs at , where bosons, such as photons, become indistinguishable and behave as a single quantum entity, forming a superfluid or superconducting state.

B-E condensates can exhibit unique quantum properties, such as a spin microemulsion. When the internal spin states of atoms in a B-E condensate are coupled to their motion, a unique called a spin microemulsion can emerge.

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