#PhysicsNEWS
➖@Phytimes➖
Matter and antimatter seem to respond equally to gravity
As part of an experiment to measure—to an extremely precise degree—the charge-to-mass ratios of protons and antiprotons, the RIKEN-led BASE collaboration at CERN, Geneva, Switzerland, has found that, within the uncertainty of the experiment, matter and antimatter respond to gravity in the same way.
➖@Phytimes➖
➖@Phytimes➖
Matter and antimatter seem to respond equally to gravity
As part of an experiment to measure—to an extremely precise degree—the charge-to-mass ratios of protons and antiprotons, the RIKEN-led BASE collaboration at CERN, Geneva, Switzerland, has found that, within the uncertainty of the experiment, matter and antimatter respond to gravity in the same way.
➖@Phytimes➖
phys.org
Matter and antimatter seem to respond equally to gravity
As part of an experiment to measure—to an extremely precise degree—the charge-to-mass ratios of protons and antiprotons, the RIKEN-led BASE collaboration at CERN, Geneva, Switzerland, has found that, ...
#PhysicsNEWS
➖@Phytimes➖
Terahertz light-driven spin-lattice control: A new potential path to faster and more efficient data storage
An international team of researchers from the University of Cologne (Germany), Radboud University Nijmegen (The Netherlands), the Ioffe Institute and the Prokhorov General Physics Institute (Russia) has discovered a new mechanism to control spin-lattice interaction using ultrashort terahertz (THz) pulses (terahertz means 1012 hertz). This mechanism can open up new and elegant ways to control propagation of spin waves and thus make an important step to conceptually new technologies of data processing in future. The results have been published in Science.
➖@Phytimes➖
➖@Phytimes➖
Terahertz light-driven spin-lattice control: A new potential path to faster and more efficient data storage
An international team of researchers from the University of Cologne (Germany), Radboud University Nijmegen (The Netherlands), the Ioffe Institute and the Prokhorov General Physics Institute (Russia) has discovered a new mechanism to control spin-lattice interaction using ultrashort terahertz (THz) pulses (terahertz means 1012 hertz). This mechanism can open up new and elegant ways to control propagation of spin waves and thus make an important step to conceptually new technologies of data processing in future. The results have been published in Science.
➖@Phytimes➖
phys.org
Terahertz light-driven spin-lattice control: A new potential path to faster and more efficient data storage
An international team of researchers from the University of Cologne (Germany), Radboud University Nijmegen (The Netherlands), the Ioffe Institute and the Prokhorov General Physics Institute (Russia) has ...
#PhysicsNEWS
➖@Phytimes➖
Manifolds in commonly used atomic fingerprints lead to failure in machine-learning four-body interactions
Atomic environment fingerprints, or structural descriptors, are used to describe the chemical environment around a reference atom. Encoding information such as bond-lengths to neighboring atoms or coordination numbers, these fingerprints are used, for example, as inputs in machine learning approaches or to eliminate redundant structures in structural searches
➖@Phytimes➖
➖@Phytimes➖
Manifolds in commonly used atomic fingerprints lead to failure in machine-learning four-body interactions
Atomic environment fingerprints, or structural descriptors, are used to describe the chemical environment around a reference atom. Encoding information such as bond-lengths to neighboring atoms or coordination numbers, these fingerprints are used, for example, as inputs in machine learning approaches or to eliminate redundant structures in structural searches
➖@Phytimes➖
phys.org
Manifolds in commonly used atomic fingerprints lead to failure in machine-learning four-body interactions
Atomic environment fingerprints, or structural descriptors, are used to describe the chemical environment around a reference atom. Encoding information such as bond-lengths to neighboring atoms or coordination ...
#PhysicsNEWS
➖@Phytimes➖
New insight into the internal structure of the proton
While the Large Hadron Collider (LHC) at CERN is well known for smashing protons together, it is actually the quarks and gluons inside the protons—collectively known as partons—that are really interacting. Thus, in order to predict the rate of a process occurring in the LHC—such as the production of a Higgs boson or a yet-unknown particle—physicists have to understand how partons behave within the proton. This behavior is described in parton distribution functions (PDFs), which describe what fraction of a proton's momentum is taken by its constituent quarks and gluons.
➖@Phytimes➖
➖@Phytimes➖
New insight into the internal structure of the proton
While the Large Hadron Collider (LHC) at CERN is well known for smashing protons together, it is actually the quarks and gluons inside the protons—collectively known as partons—that are really interacting. Thus, in order to predict the rate of a process occurring in the LHC—such as the production of a Higgs boson or a yet-unknown particle—physicists have to understand how partons behave within the proton. This behavior is described in parton distribution functions (PDFs), which describe what fraction of a proton's momentum is taken by its constituent quarks and gluons.
➖@Phytimes➖
phys.org
New insight into the internal structure of the proton
While the Large Hadron Collider (LHC) at CERN is well known for smashing protons together, it is actually the quarks and gluons inside the protons—collectively known as partons—that are really interacting. ...
#PhysicsNEWS
➖@Phytimes➖
Using time dilation to measure curvature of space-time
A team of researchers working at Stanford University has used time dilation in an atomic fountain to measure the curvature of space-time. In their study, reported in the journal Science, the group used the fountain as an interferometer to measure atomic wave packet changes that corresponded to phase shifts. Albert Roura,with the German Aerospace Center's Institute of Quantum Technologies published a Perspective piece in the same journal issue outlining the work by the team in California.
➖@Phytimes➖
➖@Phytimes➖
Using time dilation to measure curvature of space-time
A team of researchers working at Stanford University has used time dilation in an atomic fountain to measure the curvature of space-time. In their study, reported in the journal Science, the group used the fountain as an interferometer to measure atomic wave packet changes that corresponded to phase shifts. Albert Roura,with the German Aerospace Center's Institute of Quantum Technologies published a Perspective piece in the same journal issue outlining the work by the team in California.
➖@Phytimes➖
phys.org
Using time dilation to measure curvature of space-time
A team of researchers working at Stanford University has used time dilation in an atomic fountain to measure the curvature of space-time. In their study, reported in the journal Science, the group used ...
#PhysicsNEWS
➖@Phytimes➖
Study finds that black hole inner horizons can be charged or discharged
Black holes are intriguing and widely studied cosmic bodies with extremely high tidal forces, from which even light is unable to escape. While many studies predicted the existence of black holes, which have also recently been detected, many questions about these cosmic bodies remain unanswered.
➖@Phytimes➖
➖@Phytimes➖
Study finds that black hole inner horizons can be charged or discharged
Black holes are intriguing and widely studied cosmic bodies with extremely high tidal forces, from which even light is unable to escape. While many studies predicted the existence of black holes, which have also recently been detected, many questions about these cosmic bodies remain unanswered.
➖@Phytimes➖
phys.org
Study finds that black hole inner horizons can be charged or discharged
Black holes are intriguing and widely studied cosmic bodies with extremely high tidal forces, from which even light is unable to escape. While many studies predicted the existence of black holes, which ...
#PhysicsNEWS
➖@Phytimes➖
First detection of exotic 'X' particles in quark-gluon plasma
In the first millionths of a second after the Big Bang, the universe was a roiling, trillion-degree plasma of quarks and gluons—elementary particles that briefly glommed together in countless combinations before cooling and settling into more stable configurations to make the neutrons and protons of ordinary matter.
➖@Phytimes➖
➖@Phytimes➖
First detection of exotic 'X' particles in quark-gluon plasma
In the first millionths of a second after the Big Bang, the universe was a roiling, trillion-degree plasma of quarks and gluons—elementary particles that briefly glommed together in countless combinations before cooling and settling into more stable configurations to make the neutrons and protons of ordinary matter.
➖@Phytimes➖
phys.org
First detection of exotic 'X' particles in quark-gluon plasma
In the first millionths of a second after the Big Bang, the universe was a roiling, trillion-degree plasma of quarks and gluons—elementary particles that briefly glommed together in countless combinations ...
#PhysicsNEWS
➖@Phytimes➖
When light loses symmetry, it can hold particles
Optical tweezers use light to immobilize microscopic particles as small as a single atom in 3D space. The basic principle behind optical tweezers is the momentum transfer between light and the object being held. Analogous to the water pushing on a dam that blocks the stream, light pushes onto and attracts objects that make the light bend. This so-called optical force can be designed to point to a certain point in space, where a particle will be held. In fact, the optical trapping technique has so far won two Nobel Prizes, one in 1997 for holding and cooling down single atoms, a second in 2018 for offering biologists a tool to study single biomolecules such as DNA and proteins.
➖@Phytimes➖
➖@Phytimes➖
When light loses symmetry, it can hold particles
Optical tweezers use light to immobilize microscopic particles as small as a single atom in 3D space. The basic principle behind optical tweezers is the momentum transfer between light and the object being held. Analogous to the water pushing on a dam that blocks the stream, light pushes onto and attracts objects that make the light bend. This so-called optical force can be designed to point to a certain point in space, where a particle will be held. In fact, the optical trapping technique has so far won two Nobel Prizes, one in 1997 for holding and cooling down single atoms, a second in 2018 for offering biologists a tool to study single biomolecules such as DNA and proteins.
➖@Phytimes➖
phys.org
When light loses symmetry, it can hold particles
Optical tweezers use light to immobilize microscopic particles as small as a single atom in 3D space. The basic principle behind optical tweezers is the momentum transfer between light and the object ...
#PhysicsNEWS
➖@Phytimes➖
Studying cosmic expansion using methods from many-body physics
It is almost always assumed in cosmological calculations that there is a even distribution of matter in the universe. This is because the calculations would be much too complicated if the position of every single star were to be included. In reality, the universe is not uniform: in some places there are stars and planets, in others there is just a void. Physicists Michael te Vrugt and Prof. Raphael Wittkowski from the Institute of Theoretical Physics and the Center for Soft Nanoscience (SoN) at the University of Münster have, together with physicist Dr. Sabine Hossenfelder from the Frankfurt Institute for Advanced Studies (FIAS), developed a new model for this problem. Their starting point was the Mori-Zwanzig formalism, a method for describing systems consisting of a large number of particles with a small number of measurands. The results of the study have now been published in the journal Physical Review Letters.
➖@Phytimes➖
➖@Phytimes➖
Studying cosmic expansion using methods from many-body physics
It is almost always assumed in cosmological calculations that there is a even distribution of matter in the universe. This is because the calculations would be much too complicated if the position of every single star were to be included. In reality, the universe is not uniform: in some places there are stars and planets, in others there is just a void. Physicists Michael te Vrugt and Prof. Raphael Wittkowski from the Institute of Theoretical Physics and the Center for Soft Nanoscience (SoN) at the University of Münster have, together with physicist Dr. Sabine Hossenfelder from the Frankfurt Institute for Advanced Studies (FIAS), developed a new model for this problem. Their starting point was the Mori-Zwanzig formalism, a method for describing systems consisting of a large number of particles with a small number of measurands. The results of the study have now been published in the journal Physical Review Letters.
➖@Phytimes➖
phys.org
Studying cosmic expansion using methods from many-body physics
It is almost always assumed in cosmological calculations that there is a even distribution of matter in the universe. This is because the calculations would be much too complicated if the position of ...
#PhysicsNEWS
➖@Phytimes➖
Crunching multiverse to solve two physics puzzles at once
The discovery of the Higgs boson was a landmark in the history of physics. It explained something fundamental: how elementary particles that have mass get their masses. But it also marked something no less fundamental: the beginning of an era of measuring in detail the particle's properties and finding out what they might reveal about the nature of the universe.
➖@Phytimes➖
➖@Phytimes➖
Crunching multiverse to solve two physics puzzles at once
The discovery of the Higgs boson was a landmark in the history of physics. It explained something fundamental: how elementary particles that have mass get their masses. But it also marked something no less fundamental: the beginning of an era of measuring in detail the particle's properties and finding out what they might reveal about the nature of the universe.
➖@Phytimes➖
phys.org
Crunching multiverse to solve two physics puzzles at once
The discovery of the Higgs boson was a landmark in the history of physics. It explained something fundamental: how elementary particles that have mass get their masses. But it also marked something no ...
#PhysicsNEWS
➖@Phytimes➖
Scientists uncover how the shape of melting ice depends on water temperature
A team of mathematicians and physicists has discovered how ice formations are shaped by external forces, such as water temperature. Its newly published research may offer another means for gauging factors that cause ice to melt.
➖@Phytimes➖
➖@Phytimes➖
Scientists uncover how the shape of melting ice depends on water temperature
A team of mathematicians and physicists has discovered how ice formations are shaped by external forces, such as water temperature. Its newly published research may offer another means for gauging factors that cause ice to melt.
➖@Phytimes➖
phys.org
Scientists uncover how the shape of melting ice depends on water temperature
A team of mathematicians and physicists has discovered how ice formations are shaped by external forces, such as water temperature. Its newly published research may offer another means for gauging factors ...
#PhysicsNEWS
➖@Phytimes➖
Scientists discover a surprising structural change in metal oxide at low temperature
When water boils, it converts into another phase, steam. Such transitions are commonplace in nature and frequently studied in scientific laboratories.
➖@Phytimes➖
➖@Phytimes➖
Scientists discover a surprising structural change in metal oxide at low temperature
When water boils, it converts into another phase, steam. Such transitions are commonplace in nature and frequently studied in scientific laboratories.
➖@Phytimes➖
phys.org
Scientists discover a surprising structural change in metal oxide at low temperature
When water boils, it converts into another phase, steam. Such transitions are commonplace in nature and frequently studied in scientific laboratories.
#PhysicsNEWS
➖@Phytimes➖
Using the universe's coldest material to measure the world's tiniest magnetic fields
Magnetometers measure the direction, strength or relative changes of magnetic fields, at a specific point in space and time. Employed in many research areas, magnetometers can help doctors to see the brain through medical imaging, or archaeologists to reveal underground treasures without excavating the ground.
➖@Phytimes➖
➖@Phytimes➖
Using the universe's coldest material to measure the world's tiniest magnetic fields
Magnetometers measure the direction, strength or relative changes of magnetic fields, at a specific point in space and time. Employed in many research areas, magnetometers can help doctors to see the brain through medical imaging, or archaeologists to reveal underground treasures without excavating the ground.
➖@Phytimes➖
phys.org
Using the universe's coldest material to measure the world's tiniest magnetic fields
Magnetometers measure the direction, strength or relative changes of magnetic fields, at a specific point in space and time. Employed in many research areas, magnetometers can help doctors to see the ...
#PhysicsNEWS
➖@Phytimes➖
Dark energy: Neutron stars will tell us if it's only an illusion
A huge amount of mysterious dark energy is necessary to explain cosmological phenomena, such as the accelerated expansion of the Universe, using Einstein's theory. But what if dark energy was just an illusion and general relativity itself had to be modified? A new SISSA study, published in Physical Review Letters, offers a new approach to answer this question. Thanks to huge computational and mathematical effort, scientists produced the first simulation ever of merging binary neutron stars in theories beyond general relativity that reproduce a dark-energy like behavior on cosmological scales. This allows the comparison of Einstein's theory and modified versions of it, and, with sufficiently accurate data, may solve the dark energy mystery.
➖@Phytimes➖
➖@Phytimes➖
Dark energy: Neutron stars will tell us if it's only an illusion
A huge amount of mysterious dark energy is necessary to explain cosmological phenomena, such as the accelerated expansion of the Universe, using Einstein's theory. But what if dark energy was just an illusion and general relativity itself had to be modified? A new SISSA study, published in Physical Review Letters, offers a new approach to answer this question. Thanks to huge computational and mathematical effort, scientists produced the first simulation ever of merging binary neutron stars in theories beyond general relativity that reproduce a dark-energy like behavior on cosmological scales. This allows the comparison of Einstein's theory and modified versions of it, and, with sufficiently accurate data, may solve the dark energy mystery.
➖@Phytimes➖
phys.org
Dark energy: Neutron stars will tell us if it's only an illusion
A huge amount of mysterious dark energy is necessary to explain cosmological phenomena, such as the accelerated expansion of the Universe, using Einstein's theory. But what if dark energy was just an ...
Forwarded from Science in telegram
The 2022 Nobel Prize in Physics has been awarded to three scientists for their work in pioneering quantum information science. Alain Aspect, John F. Clauser and Anton Zeilinger all conducted some of the first experiments with entangled photons, enabling a future for commercial quantum computers.
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Can summarize academic literature, solve math problems, generate Wiki articles, write scientific code, annotate molecules and proteins, and more.
Explore and get weights: galactica.org
BREAKING: Physicists have built a wormhole and successfully sent information from one end to the other.
https://www.quantamagazine.org/physicists-create-a-wormhole-using-a-quantum-computer-20221130/
https://www.quantamagazine.org/physicists-create-a-wormhole-using-a-quantum-computer-20221130/
Quanta Magazine
Physicists Create a Holographic Wormhole Using a Quantum Computer
The unprecedented experiment explores the possibility that space-time somehow emerges from quantum information, even as the work’s interpretation remains disputed.
#PhysicsNEWS
➖@Phytimes➖
Confirming the theory behind the formation of planets, stars and black holes
The first laboratory realization of the long-standing but never-before confirmed theory of the puzzling formation of planets, stars and supermassive black holes by swirling surrounding matter has been produced at PPPL. This breakthrough confirmation caps more than 20 years of experiments at PPPL, the national laboratory devoted to the study of plasma science and fusion energy.
➖@Phytimes➖
➖@Phytimes➖
Confirming the theory behind the formation of planets, stars and black holes
The first laboratory realization of the long-standing but never-before confirmed theory of the puzzling formation of planets, stars and supermassive black holes by swirling surrounding matter has been produced at PPPL. This breakthrough confirmation caps more than 20 years of experiments at PPPL, the national laboratory devoted to the study of plasma science and fusion energy.
➖@Phytimes➖
phys.org
Confirming the theory behind the formation of planets, stars and black holes
The first laboratory realization of the long-standing but never-before confirmed theory of the puzzling formation of planets, stars and supermassive black holes by swirling surrounding matter has been ...
#PhysicsNEWS
➖@Phytimes➖
Research takes first steps towards realizing mechanical qubits
Quantum information (QI) processing may be the next game changer in the evolution of technology, by providing unprecedented computational capabilities, security and detection sensitivities. Qubits, the basic hardware element for quantum information, are the building block for quantum computers and quantum information processing, but there is still much debate on which types of qubits are actually the best.
➖@Phytimes➖
➖@Phytimes➖
Research takes first steps towards realizing mechanical qubits
Quantum information (QI) processing may be the next game changer in the evolution of technology, by providing unprecedented computational capabilities, security and detection sensitivities. Qubits, the basic hardware element for quantum information, are the building block for quantum computers and quantum information processing, but there is still much debate on which types of qubits are actually the best.
➖@Phytimes➖
phys.org
Research takes first steps towards realizing mechanical qubits
Quantum information (QI) processing may be the next game changer in the evolution of technology, by providing unprecedented computational capabilities, security and detection sensitivities. Qubits, the ...
#PhysicsNEWS
➖@Phytimes➖
Researchers use measurements to generate quantum entanglement and teleportation
Quantum mechanics is full of weird phenomena, but perhaps none as weird as the role measurement plays in the theory. Since a measurement tends to destroy the "quantumness" of a system, it seems to be the mysterious link between the quantum and classical world. And in a large system of quantum bits of information, known as "qubits," the effect of measurements can induce dramatically new behavior, even driving the emergence of entirely new phases of quantum information.
➖@Phytimes➖
➖@Phytimes➖
Researchers use measurements to generate quantum entanglement and teleportation
Quantum mechanics is full of weird phenomena, but perhaps none as weird as the role measurement plays in the theory. Since a measurement tends to destroy the "quantumness" of a system, it seems to be the mysterious link between the quantum and classical world. And in a large system of quantum bits of information, known as "qubits," the effect of measurements can induce dramatically new behavior, even driving the emergence of entirely new phases of quantum information.
➖@Phytimes➖
phys.org
Researchers use measurements to generate quantum entanglement and teleportation
Quantum mechanics is full of weird phenomena, but perhaps none as weird as the role measurement plays in the theory. Since a measurement tends to destroy the "quantumness" of a system, it seems to be ...