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A ‘beyond-quantum’ equivalence principle for superposition and entanglement
The physics of the microrealm involves two famous and bizarre concepts: superposition and entanglement. Both are described mathematically by quantum theory, but many physicists believe that one day quantum theory will need to be replaced by an ultimate theory of reality that lies beyond quantum theory. Now, a team of physicists and mathematicians has discovered a new connection between these two weird properties that does not assume that quantum theory is correct. Their work, partially funded by the Foundational Questions Institute, FQXi, confirms that current quantum cryptographic protocols, which promise ultra-secure un-hackable...
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An upset to the standard model
Over the past 60 years, the standard model (SM) has established itself as the most successful theory of matter and fundamental interactions—to date.
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The double-slit experiment: Is light a wave or a particle?
The double-slit experiment is one of the most famous experiments in physics and definitely one of the weirdest. It demonstrates that matter and energy (such as light) can exhibit both wave and particle characteristics — known as the particle-wave duality of matter — depending on the scenario, according to the scientific communication site Interesting Engineering.
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Spiderweb of wormholes could solve a black hole paradox 1st proposed by Stephen Hawking
A seemingly intractable black hole paradox first proposed by physicist Stephen Hawking could finally be resolved — by wormholes through space-time. The "black hole information paradox" refers to the fact that information cannot be destroyed in the universe, and yet when a black hole eventually evaporates, whatever information was gobbled up by this cosmic vacuum cleaner should have long since vanished. The new study proposes that the paradox could be resolved by nature's ultimate cheat code: wormholes, or passages through space-time.
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Physicists have coaxed ultracold atoms into an elusive form of quantum matter
An elusive form of matter called a quantum spin liquid isn’t a liquid, and it doesn’t spin — but it sure is quantum. Predicted nearly 50 years ago, quantum spin liquids have long evaded definitive detection in the laboratory. But now, a lattice of ultracold atoms held in place with lasers has shown hallmarks of the long-sought form of matter, researchers report in the Dec. 3 Science.
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Quantum processor swapped in for a neural network
It's become increasingly clear that quantum computers won't have a single moment when they become clearly superior to classical hardware. Instead, we're likely to see them becoming useful for a narrow set of problems and then gradually expand out from there to an increasing range of computations. The question obviously becomes one of where the utility will be seen first.
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Physicists detect signs of neutrinos at Large Hadron Collider
The international Forward Search Experiment team, led by physicists at the University of California, Irvine, has achieved the first-ever detection of neutrino candidates produced by the Large Hadron Collider at the CERN facility near Geneva, Switzerland.
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Physicists fail to find mysterious 'sterile neutrino' particles
The hunt for mysterious theoretical particles known as sterile neutrinos has turned up empty again. Neutrinos are extremely light subatomic particles that barely interact with regular matter. There are three known types and the search for a fourth has been going on for decades. Now, a new set of analyses has failed to find any sign that it exists.
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Scientists just broke the record for the coldest temperature ever recorded in a lab
Scientists just broke the record for the coldest temperature ever measured in a lab: They achieved the bone-chilling temperature of 38 trillionths of a degree above -273.15 Celsius by dropping magnetized gas 393 feet (120 meters) down a tower.
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Otherworldly 'time crystal' made inside Google quantum computer could change physics forever
Researchers working in partnership with Google may have just used the tech giant's quantum computer to create a completely new phase of matter — a time crystal. With the ability to forever cycle between two states without ever losing energy, time crystals dodge one of the most important laws of physics — the second law of thermodynamics, which states that the disorder, or entropy, of an isolated system must always increase.
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1st 'atom tornado' created from swirling vortex of helium atoms
Not much is known about the vortex beams’ properties at the moment, but scientists plan to learn more by crashing them into other particles.
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+14 +1
Black holes found to exert a pressure on their environment
Physicists at the University of Sussex have discovered that black holes exert a pressure on their environment, in a scientific first. In 1974 Stephen Hawking made the seminal discovery that black holes emit thermal radiation. Previous to that, black holes were believed to be inert, the final stages of a dying heavy star.
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Quantum gas free-falls its way to a low-temperature record
A cloud of rubidium atoms is said to have achieved the coldest temperature yet after being dropped from the top of a tower.
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+21 +1
Shanghai scientists set space teleportation record
It first hit our television sets on Sept. 8, 1966. The television show was called Star Trek, and, it featured a bold group of space travellers aboard the starship Enterprise. It was then that we were formally introduced to teleportation — a cool concept that allowed the ship to beam people and things to any coordinate.
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'Holy grail discovery' in solid-state physics could usher in new technologies
There are many mysteries still to unravel in the world of quantum mechanics, but scientists at Northeastern believe they've made a "holy grail" discovery that could help pave the way for the next generation of electronic devices.
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Exotic four-quark particle spotted at Large Hadron Collider
Rare tetraquark is one of dozens of non-elementary particles discovered by the accelerator, and could help to test theories about strong nuclear force. The Large Hadron Collider (LHC) is also a big hadron discoverer. The atom smasher near Geneva, Switzerland, is most famous for demonstrating the existence of the Higgs boson in 2012, a discovery that slotted into place the final keystone of the current classification of elementary particles. But the LHC has also netted dozens of the non-elementary particles called hadrons — those that, like protons and neutrons, are made of quarks.
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Dark matter: one last push to crack the biggest secret in the universe
Deep underground, scientists are closing in on one of the most elusive targets of modern science: dark matter. In subterranean laboratories in the US and Italy, they have set up huge vats of liquid xenon and lined them with highly sensitive detectors in the hope of spotting subatomic collisions that will reveal the presence of this elusive material.
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Big Bang: How We Are Trying to ‘Listen’ to It—and the New Physics It Could Unveil
Exactly what happened at the beginning of the universe, 14 billion years ago, is one of the greatest mysteries in physics; there’s no simple way to probe it. That’s because, in its early stages, the universe was filled with a dense plasma—a gas made out of charged particles including electrons and protons (particles that comprise the atomic nucleus alongside neutrons).
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For The First Time, Scientists Have Connected a Superconductor to a Semiconductor
Scientists have succeeded in combining two exciting material types together for the very first time: an ultrathin semiconductor just a single atom thick; and a superconductor, capable of conducting electricity with zero resistance.
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Thousands of physicists are working together to redefine the cosmos
What happened at the beginning of the universe, in the very first moments? The truth is, we don’t really know because it takes huge amounts of energy and precision to recreate and understand the cosmos on such short timescales in the lab.
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