Physics News

Quantum Teleportation Can Be Used to Avoid Loss in Communication Channels, Researchers Say

Yin et al realized the satellite-based distribution of entangled photon pairs over 747 miles. Image credit: U.S. Army.
Apr 12, 2022 by News Staff

Scientists from Griffith University, the University of Queensland, the University of New South Wales and the U.S. National Institute of Standards and Technology have highlighted the issues around inherent loss that occurs across every form of communication channel (for example, internet or phone) and discovered a mechanism that can reduce that loss. Slussarenko et al. demonstrate the core task of a quantum relay in distributing quantum information...

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Physicists Precisely Measure Mass of W Boson

Apr 11, 2022 by News Staff

Physicists from the Collider Detector at Fermilab (CDF) Collaboration have determined the mass of the W boson, a mediator of the weak force between elementary...

Quantum scrambling is one suggestion for how information can fall into a black hole and come out as random-looking radiation. Perhaps, the argument goes, it is not random at all, and black holes are just excellent scramblers. Image credit: E. Edwards / Joint Quantum Institute.

Hairy Black Holes Explain Hawking’s Paradox, Physicists Claim

Mar 22, 2022 by News Staff

The signature feature of black holes is that they are black — objects which fall into the hole can no longer be seen and can no longer influence...

The mass-energy-information equivalence principle proposed in 2019 and the information content of the observable matter in the Universe estimated in 2021 represent two important conjectures, called the information conjectures. Combining information theory and physical principles of thermodynamics, these theoretical proposals made specific predictions about the mass of information as well as the most probable information content per elementary particle. Dr. Vopson proposes an experimental protocol that allows for empirical verification of the information conjectures by confirming the predicted information content of elementary particles. Image credit: Pete Linforth.

Newly Proposed Experiment Could Confirm that Information is Fifth State of Matter

Mar 21, 2022 by News Staff

Dr. Melvin Vopson, a physicist with the School of Mathematics and Physics at the University of Portsmouth, has already published research suggesting that...

Phase diagram of ice: dark blue-, green-, and red-shaded regions denote ice VII, VIIt and X, respectively, and projected phase boundaries separating high-pressure ice phases from our work are shown as solid black lines; ice X phase boundaries connect the measured transition at 30.9 GPa and 300 K to the inflection point in the melt curve, which have been associated with the transition from molecular to ionic fluid; dashed lines show measured melting curves; superionic boundary is highlighted. Image credit: Grande et al., doi: 10.1103/PhysRevB.105.104109.

New Form of Ice Discovered: Ice VIIt

Mar 21, 2022 by News Staff

Physicists have observed the transition from a previously known cubic phase, ice VII, to the newly-discovered intermediate, and tetragonal, phase, ice...

Blázquez-Salcedo et al. constructed a specific example of a class of traversable wormholes in four space-time dimensions. Image credit: NASA / G. Bacon, STScI.

New Theoretical Study Sheds Light on How Information Escapes from Evaporating Black Hole

Mar 11, 2022 by News Staff

An international team of physicists from RIKEN, Cornell University and the University of California, Santa Barbara, has used a new spacetime geometry with...

A ‘domain wall’ in this image is the lighter line between two groups of atoms. Image credit: Kai-Xuan Yao.

New Kind of Quantum Object Created

Feb 17, 2022 by News Staff

Physicists at the University of Chicago have demonstrated formation of a new kind of quantum object — dubbed a ‘domain wall’ — in a Bose-Einstein...

Illustration of the 70-m-long KATRIN beamline: the transport of β-electrons and magnetic adiabatic collimation of their momenta p are illustrated; (a-f) view into the tritium source depicts three systematic effects: molecular excitations during β-decay (a), scattering of electrons off the gas molecules (b) and spatial distribution of the electric potential in the source Usrc(r, z) (c); the view into the spectrometer illustrates the main background processes arising from radon decays inside the volume of the spectrometer (d), highly excited Rydberg atoms sputtered off from the structural material via α-decays of 210Po (e) and positive ions created in a Penning trap between the two spectrometers (f); low-energy electrons, created in the volume as a consequence of radon decays or Rydberg-atom ionizations, can be accelerated by qUana towards the focal-plane detector, making them indistinguishable from signal electrons. Image credit: KATRIN Collaboration, doi: 10.1038/s41567-021-01463-1.

KATRIN Experiment Sets New Limit on Neutrino Mass

Feb 15, 2022 by Enrico de Lazaro

Since the discovery of neutrino oscillations, physicists know that neutrinos have non-zero mass. However, the absolute neutrino-mass scale remains unknown....

Frequency-time spectrum of (a) a 65Ni resonance, (b) the temporal ion-bunch structure, and (c) the laser-spectroscopic resonance spectrum; (d) a resonance of 70Ni. Image credit: Malbrunot-Ettenauer et al., doi: 10.1103/PhysRevLett.128.022502.

CERN Physicists Measure Charge Radii of ‘Magic’ Nickel Nuclei

Jan 26, 2022 by News Staff

A unique combination of experimental data from CERN’s Isotope mass Separator On-Line (ISOLDE) facility and state-of-the-art models has resulted in an...

Physicists Detect Exotic Particles in Quark-Gluon Plasma

Jan 25, 2022 by News Staff

Physicists from the CMS (Compact Muon Solenoid) Collaboration at CERN’s Large Hadron Collider have detected about 100 particles of a type known as X(3872)...

Hexagonal boron nitride-based deep-ultraviolet LED. Image credit: Pohang University of Science and Technology.

Researchers Create Deep-Ultraviolet Light-Emitting Diode

Jan 20, 2022 by News Staff

A team of researchers from the Pohang University of Science and Technology and the Korean Institute for Basic Science has demonstrated deep-ultraviolet...

Artistic impression of a Multiverse. Image credit: Jaime Salcido / EAGLE Collaboration.

New Multiverse Theory Explains Surprisingly Small Mass of Higgs Boson

Jan 18, 2022 by News Staff

Dr. Raffaele Tito D’Agnolo from the French Alternative Energies and Atomic Energy Commission and Dr. Daniele Teresi from CERN have proposed a novel theory...

Scanning electron microscopy image of a nanopatterned YBa2Cu3O7−δ (YBCO) thin film. The 12-nm-thick nanopatterned YBCO thin film was fabricated by reactive ion etching through an anodic aluminium oxide (AAO) membrane directly placed atop the YBCO. By RIE, the anodized aluminium oxide pattern of a triangular array of holes with ~70-nm diameter and ~103-nm period was duplicated onto the YBCO film. Image credit: Yang et al., doi: 10.1038/s41586-021-04239-y.

Physicists Discover New Type of ‘Strange Metal’

Jan 14, 2022 by News Staff

A team of physicists from the United States and China has detected the unexpected signatures of strange metallicity in a material in which electrical charge...

An artist’s conception of the cross section of a super-Earth with the National Ignition Facility target chamber superimposed over the mantle, looking into the core. Image credit: John Jett / Lawrence Livermore National Laboratory.

Rocky Exoplanets with Four to Six Times Earth’s Mass Have Longest Dynamos, Study Suggests

Jan 13, 2022 by News Staff

The pressure and temperature conditions at which iron melts are important for rocky planets because they determine the size of the liquid metal core, an...

Artist’s impression of a cloud of trapped antihydrogen atoms. Image credit: Chukman So.

Antimatter Responds to Gravity in Same Way as Regular Matter, New Experiments Suggest

Jan 6, 2022 by News Staff

The Standard Model of particle physics is both incredibly successful and glaringly incomplete. Among the questions left open is the striking imbalance...

An artist’s rendition of a giant star in orbit around a low-mass black hole. Image credit: Sci-News.com.

Black Holes are Giant Fuzzballs, Theoretical Physicists Say

Jan 5, 2022 by News Staff

In 1997, cosmologists Stephen Hawking, Kip Thorne and John Preskill made a famous bet as to whether information that enters a black hole ceases to exist....

Visualization of the motion of particles expelled from the mouth of the mannequin with inclination angles of 60° (a) and (b) and 120° (c) and (d); panels (a) and (c) display the average intensity of particle fluorescence, and panels (b) and (d) show the instantaneous particle distribution at three times; the white arrows mark the ejection direction of the particles; the nondimensional time interval in these figures corresponds to a physical time interval of 0.1 s. Image credit: Wang et al., doi: 10.1063/5.0073880.

Study: Coughing Downward Can Reduce Spread of Cough-Generated Droplets

Jan 5, 2022 by News Staff

Dr. Hongping Wang and his colleagues from the State Key Laboratory of Nonlinear Mechanics at the Institute of Mechanics of the Chinese Academy of Sciences...

Magnesium-18. Image credit: S.M. Wang / Fudan University & Facility for Rare Isotope Beams, Michigan State University.

Physicists Create New Isotope of Magnesium

Dec 24, 2021 by News Staff

Magnesium-18 (18Mg) is the lightest isotope of magnesium, which is element 12 on the periodic table. Magnesium-18. Image credit: S.M. Wang / Fudan University...

Parker Solar Probe has flown through the solar corona and sampled particles and magnetic fields there. Image credit: NASA’s Goddard Space Flight Center.

Parker Solar Probe Enters Magnetized Atmosphere of the Sun

Dec 15, 2021 by News Staff

The high temperatures and strong magnetic fields of the Sun’s upper atmosphere — the corona — form streams of the solar wind that expand...

A Higgs boson candidate transforming into four muons (red lines). Image credit: CERN.

Higgs Boson Has Tiny Lifespan, New Research Confirms

Dec 6, 2021 by News Staff

The Higgs boson is peculiar in many respects. Like most other elementary particles, it is unstable and lives only for an extremely short time, 1.6*10-22...

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