RSS Parrot

3D-printed device splits white noise into an acoustic rainbow without electricity

https://phys.org/news/2025-06-3d-device-white-noise-acoustic.html

Published: June 13, 2025 08:50

In a study published in Science Advances, researchers from Technical University of Denmark and Universidad Politécnica de Madrid demonstrate a new device called an acoustic rainbow emitter (ARE) that takes in broadband white-noise signals from a point…

A high-resolution spectrometer that fits into smartphones

https://phys.org/news/2025-06-high-resolution-spectrometer-smartphones.html

Published: June 13, 2025 08:32

Color, as the way light's wavelength is perceived by the human eye, goes beyond a simple aesthetic element, containing important scientific information like a substance's composition or state.

Scientists achieve precision activation of quantum defects in diamond

https://phys.org/news/2025-06-scientists-precision-quantum-defects-diamond.html

Published: June 12, 2025 16:20

A new study led by researchers at the Universities of Oxford, Cambridge and Manchester has achieved a major advance in quantum materials, developing a method to precisely engineer single quantum defects in diamond—an essential step toward scalable quantum…

Gyromagnetic zero-index metamaterials enable stable light vortices for advanced optical control

https://phys.org/news/2025-06-gyromagnetic-index-metamaterials-enable-stable.html

Published: June 12, 2025 16:04

The Hong Kong University of Science and Technology (HKUST)-led research team has adopted gyromagnetic double-zero-index metamaterials (GDZIMs)—a new optical extreme-parameter material—and developed a new method to control light using GDZIMs. This discovery…

Trapped-ion advances break new ground in quantum computing

https://phys.org/news/2025-06-ion-advances-ground-quantum.html

Published: June 12, 2025 15:33

Research at the Quantum Systems Accelerator has been steadily breaking new ground, quickening the pace toward flexible, stable quantum computers with capabilities well beyond those of today's classical machines.

With potential implications for mechanical systems, study reveals physics of the 'nick shot' in squash

https://phys.org/news/2025-06-potential-implications-mechanical-reveals-physics.html

Published: June 12, 2025 15:11

In squash, the "nick shot" is an emphatic, point-ending play in which a player strikes a ball that ricochets near the bottom of the wall and rolls flat along the floor instead of bouncing, leaving an opponent with no chance to return it.

Cellular coordinate system reveals secrets of active matter

https://phys.org/news/2025-06-cellular-reveals-secrets.html

Published: June 12, 2025 11:40

All humans who have ever lived were once each an individual cell, which then divided countless times to produce a body made up of about 10 trillion cells. These cells have busy lives, executing all kinds of dynamic movement: contracting every time we flex…

Strontium optical lattice clock in China surpasses key benchmarks for precision timekeeping

https://phys.org/news/2025-06-strontium-optical-lattice-clock-china.html

Published: June 12, 2025 11:39

A research team led by Prof. Chang Hong from the National Time Service Center (NTSC) of the Chinese Academy of Sciences (CAS) has developed a strontium optical lattice clock with both frequency stability and systematic uncertainty surpassing 2×10-18. This…

A new problem that only quantum computing can solve

https://phys.org/news/2025-06-problem-quantum.html

Published: June 12, 2025 10:56

As quantum computing develops, scientists are working to identify tasks for which quantum computers have a clear advantage over classical computers. So far, researchers have only pinpointed a handful of these problems, but in a new paper published in…

Understanding quantum computing's most troubling problem—the barren plateau

https://phys.org/news/2025-06-quantum-problem-barren-plateau.html

Published: June 12, 2025 10:19

For the past six years, Los Alamos National Laboratory has led the world in trying to understand one of the most frustrating barriers that faces variational quantum computing: the barren plateau.

A quantum random access memory based on transmon-controlled phonon routers

https://phys.org/news/2025-06-quantum-random-access-memory-based.html

Published: June 12, 2025 10:19

Recent technological advances have opened new exciting possibilities for the development of cutting-edge quantum devices, including quantum random access memory (QRAM) systems. These are memory architectures specifically meant to be integrated inside…

New class of 'X-type' antiferromagnets enables sublattice-selective spin transport

https://phys.org/news/2025-06-class-antiferromagnets-enables-sublattice.html

Published: June 12, 2025 10:13

A research team led by Prof. Shao Dingfu from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has predicted a new class of antiferromagnetic materials with unique cross-chain structures, termed "X-type antiferromagnets." These…

Unprecedented optical clock network lays groundwork for redefining the second

https://phys.org/news/2025-06-unprecedented-optical-clock-network-lays.html

Published: June 12, 2025 10:00

In a new study, researchers carried out the most extensive coordinated comparison of optical clocks to date by operating clocks and the links connecting them simultaneously across six countries. Spanning thousands of kilometers, the experiment represents a…

Q&A: Physics and the value of scientific disappointment

https://phys.org/news/2025-06-qa-physics-scientific-disappointment.html

Published: June 12, 2025 09:46

Sharing disappointing results with a world of researchers working to find what they hope will be the "discovery of the century" isn't an easy task, but that is what Penn State theoretical physicist Zoltan Fodor and his international research group did five…

Harnessing magnons for quantum information processing

https://phys.org/news/2025-06-harnessing-magnons-quantum.html

Published: June 12, 2025 08:59

Researchers have determined how to use magnons—collective vibrations of the magnetic spins of atoms—for next-generation information technologies, including quantum technologies with magnetic systems.

Recent developments in klystron technology for future energy-efficient colliders

https://phys.org/news/2025-06-klystron-technology-future-energy-efficient.html

Published: June 12, 2025 04:33

The Higgs boson is the most intriguing and unusual object yet discovered by fundamental science. There is no higher experimental priority for particle physics than building an electron–positron collider to produce it copiously and study it precisely.

Decades-old mystery of AlCl dipole moment resolved

https://phys.org/news/2025-06-decades-mystery-alcl-dipole-moment.html

Published: June 12, 2025 04:32

In a study that closes a long-standing knowledge gap in fundamental science, researchers Boerge Hemmerling and Stephen Kane at the University of California, Riverside, have successfully measured the electric dipole moment of aluminum monochloride (AlCl), a…

Iodine-stabilized single-longitudinal-mode laser enhances atmospheric sensing and environmental monitoring

https://phys.org/news/2025-06-iodine-stabilized-longitudinal-mode-laser.html

Published: June 11, 2025 16:02

A research team led by Prof. Zhang Tianshu at the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has developed a compact all-solid-state continuous-wave (CW) single-longitudinal-mode (SLM) laser with high frequency stability using…

Here's what happens when quark-gluon plasma 'splashes' during the most energetic particle collisions

https://phys.org/news/2025-06-quark-gluon-plasma-splashes-energetic.html

Published: June 11, 2025 15:28

New data from particle collisions at the Relativistic Heavy Ion Collider (RHIC), an "atom smasher" at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, reveals how the primordial soup generated in the most energetic particle collisions…

Quantum navigation device uses atoms to measure acceleration in 3D

https://phys.org/news/2025-06-quantum-device-atoms-3d.html

Published: June 11, 2025 14:18

In a new study, physicists at the University of Colorado Boulder have used a cloud of atoms chilled down to incredibly cold temperatures to simultaneously measure acceleration in three dimensions—a feat that many scientists didn't think was possible.

Charge-parity symmetry breaking revealed in Rydberg atom multibody systems

https://phys.org/news/2025-06-parity-symmetry-revealed-rydberg-atom.html

Published: June 11, 2025 11:48

A research team has observed multibody interaction-induced EPs and hysteresis trajectories in cold Rydberg atomic gases. They revealed the phenomenon of charge-conjugation parity (CP) symmetry breaking in non-Hermitian multibody physics.

Quantum mechanics provide truly random numbers on demand

https://phys.org/news/2025-06-quantum-mechanics-random-demand.html

Published: June 11, 2025 11:00

Randomness is incredibly useful. People often draw straws, throw dice or flip coins to make fair choices. Random numbers can enable auditors to make completely unbiased selections. Randomness is also key in security; if a password or code is an unguessable…

Scientists achieve shortest hard X-ray pulses to date

https://phys.org/news/2025-06-scientists-shortest-hard-ray-pulses.html

Published: June 11, 2025 11:00

Once only a part of science fiction, lasers are now everyday objects used in research, health care and even just for fun. Previously available only in low-energy light, lasers are now available in wavelengths from microwaves through X-rays, opening a range…

Two different time scales could increase quantum clock accuracy exponentially

https://phys.org/news/2025-06-scales-quantum-clock-accuracy-exponentially.html

Published: June 10, 2025 14:40

How can the strange properties of quantum particles be exploited to perform extremely accurate measurements? This question is at the heart of the research field of quantum metrology. One example is the atomic clock, which uses the quantum properties of…

Deciphering the behavior of heavy particles in the hottest matter in the universe

https://phys.org/news/2025-06-deciphering-behavior-heavy-particles-hottest.html

Published: June 10, 2025 13:10

An international team of scientists has published a new report that moves toward a better understanding of the behavior of some of the heaviest particles in the universe under extreme conditions, which are similar to those just after the Big Bang.

'Link-bots' can move, explore, cooperate without sensing or computation

https://phys.org/news/2025-06-link-bots-explore-cooperate.html

Published: June 10, 2025 12:40

Coordinated behaviors like swarming—from ant colonies to schools of fish—are found everywhere in nature. Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have given a nod to nature with a next-generation robot…

Machine learning helps ease the jitters of high-power lasers

https://phys.org/news/2025-06-machine-ease-jitters-high-power.html

Published: June 10, 2025 11:49

Researchers at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have made a breakthrough in laser technology by using machine learning (ML) to help stabilize a high-power laser.

First on-chip photonic qubit enables GKP states for error correction at room temperature

https://phys.org/news/2025-06-chip-photonic-qubit-enables-gkp.html

Published: June 10, 2025 11:41

Xanadu has achieved a significant milestone in the development of scalable quantum hardware by generating error-resistant photonic qubits on an integrated chip platform. A foundational result in Xanadu's roadmap, this first-ever demonstration of such…

Compact magnetometer innovation enables ultra-sensitive detection in high magnetic fields

https://phys.org/news/2025-06-compact-magnetometer-enables-ultra-sensitive.html

Published: June 10, 2025 11:20

A research team from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has developed a compact dynamic cantilever magnetometer with a diameter of just 22 mm, achieving magnetic moment sensitivity on the order of 10-17 A·m2.

IBM claims 'real world' edge in quantum computing race

https://phys.org/news/2025-06-ibm-real-world-edge-quantum.html

Published: June 10, 2025 07:13

Technology veteran IBM on Tuesday laid out a plan to have a "practical" quantum computer tackling big problems before the end of this decade.

How an atomic nucleus can have two different shapes with only slightly different energy levels

https://phys.org/news/2025-06-atomic-nucleus-slightly-energy.html

Published: June 9, 2025 16:54

A team of researchers at the Facility for Rare Isotope Beams (FRIB) at Michigan State University (MSU) has discovered that cobalt-70 isotopes form different nuclear shapes when their energy levels differ only slightly. The findings, published in Nature…

Physicists set new world record for qubit operation accuracy

https://phys.org/news/2025-06-physicists-world-qubit-accuracy.html

Published: June 9, 2025 15:44

Physicists at the University of Oxford have set a new global benchmark for the accuracy of controlling a single quantum bit, achieving the lowest-ever error rate for a quantum logic operation—just 0.000015%, or one error in 6.7 million operations. This…

First surface-emitting laser using quantum dots targets optical fiber communications

https://phys.org/news/2025-06-surface-emitting-laser-quantum-dots.html

Published: June 9, 2025 15:44

The National Institute of Information and Communications Technology of Japan, in collaboration with Sony Semiconductor Solutions Corporation (Sony), has developed the world's first practical surface-emitting laser that employs quantum dot (QD) as the…

Terahertz polarimetry detects microscopic tissue changes linked to cancer and burns

https://phys.org/news/2025-06-terahertz-polarimetry-microscopic-tissue-linked.html

Published: June 9, 2025 15:24

Recent advances in electronics and optics have opened new possibilities for terahertz (THz) waves—an invisible type of light that falls between infrared light and microwaves on the spectrum. The use of THz scattering for medical diagnosis is a promising…

Out of the string theory swampland: New models may resolve problem that conflicts with dark energy

https://phys.org/news/2025-06-theory-swampland-problem-conflicts-dark.html

Published: June 9, 2025 12:50

String theory has long been touted as physicists' best candidate for describing the fundamental nature of the universe, with elementary particles and forces described as vibrations of tiny threads of energy. But in the early 21st century, it was realized…

Quantum machine learning: Small-scale photonic quantum processor can already outperform classical counterparts

https://phys.org/news/2025-06-quantum-machine-small-scale-photonic.html

Published: June 9, 2025 11:21

One of the current hot research topics is the combination of two of the most recent technological breakthroughs: machine learning and quantum computing.

AI-designed waveguides pave the way for next-generation photonic devices

https://phys.org/news/2025-06-ai-waveguides-pave-generation-photonic.html

Published: June 9, 2025 09:26

A team of researchers at the University of California, Los Angeles (UCLA) has introduced a novel framework for designing and creating universal diffractive waveguides that can control the flow of light in highly specific and complex ways.

Modeling electric response of materials, a million atoms at a time

https://phys.org/news/2025-06-electric-response-materials-million-atoms.html

Published: June 9, 2025 08:54

Researchers in the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a machine learning framework that can predict with quantum-level accuracy how materials respond to electric fields, up to the scale of a million…

Nonreciprocal light speed control achieved using cavity magnonics device

https://phys.org/news/2025-06-nonreciprocal-cavity-magnonics-device.html

Published: June 8, 2025 09:00

The reliable manipulation of the speed at which light travels through objects could have valuable implications for the development of various advanced technologies, including high-speed communication systems and quantum information processing devices.…

Polymer waveguides show promise for reliable, high-capacity optical communication

https://phys.org/news/2025-06-polymer-waveguides-reliable-high-capacity.html

Published: June 6, 2025 13:22

Co-packaged optics (CPO) technology can integrate photonic integrated circuits (PICs) with electronic integrated circuits (EICs) like CPUs and GPUs on a single platform. This advanced technology has immense potential to improve data transmission efficiency…

Scientists discover extremely neutron-deficient isotope protactinium-210

https://phys.org/news/2025-06-scientists-extremely-neutron-deficient-isotope.html

Published: June 6, 2025 11:05

Researchers from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences and their collaborators have synthesized a new isotope—protactinium-210—for the first time. It is the most neutron-deficient isotope of protactinium synthesized to…

New measurement of the mass of the Z boson from the Large Hadron Collider

https://phys.org/news/2025-06-mass-boson-large-hadron-collider.html

Published: June 6, 2025 10:16

The LHCb experiment has taken a leap in precision physics at the Large Hadron Collider (LHC). In a new paper submitted to Physical Review Letters and currently available on the arXiv preprint server, the LHCb collaboration reports the first dedicated…

Probing hyperon potential to resolve a longstanding puzzle in neutron stars

https://phys.org/news/2025-06-probing-hyperon-potential-longstanding-puzzle.html

Published: June 6, 2025 09:26

A research team led by Prof. Yong Gaochan from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences has proposed a novel experimental method to probe the hyperon potential, offering new insights into resolving the longstanding "hyperon…

Phase-resolved attoclock precisely measures electron tunneling time

https://phys.org/news/2025-06-phase-attoclock-precisely-electron-tunneling.html

Published: June 6, 2025 06:30

When placed under a powerful laser field (i.e., under strong-field ionization), electrons can temporarily cross the so-called quantum tunneling barrier, an energy barrier that they would typically be unable to overcome. This quantum mechanics phenomenon,…

Quantum state lifetimes extended by laser-triggered electron tunneling in cuprate ladders

https://phys.org/news/2025-06-quantum-state-lifetimes-laser-triggered.html

Published: June 5, 2025 13:08

Quantum materials exhibit remarkable emergent properties when they are excited by external sources. However, these excited states decay rapidly once the excitation is removed, limiting their practical applications.

A programmable solution for higher-speed wireless communication networks and low-cost microwave sensing

https://phys.org/news/2025-06-programmable-solution-higher-wireless-communication.html

Published: June 5, 2025 12:16

Researchers have published the demonstration of a fully-integrated single-chip microwave photonics system, combining optical and microwave signal processing on a single silicon chip.

The quantum physics of forgetting information

https://phys.org/news/2025-06-quantum-physics.html

Published: June 5, 2025 09:25

In a study by TU Wien and FU Berlin, researchers have measured what happens when quantum physical information is lost. This clarifies important connections between thermodynamics, information theory and quantum physics.

Physicists observe a new form of magnetism for the first time

https://phys.org/news/2025-06-physicists-magnetism.html

Published: June 5, 2025 09:12

MIT physicists have demonstrated a new form of magnetism that could one day be harnessed to build faster, denser, and less power-hungry "spintronic" memory chips.

Physicists figure out how an electric field can switch off superconductivity

https://phys.org/news/2025-06-physicists-figure-electric-field-superconductivity.html

Published: June 5, 2025 08:38

Transistors are fundamental to microchips and modern electronics. Invented by Bardeen and Brattain in 1947, their development is one of the 20th century's key scientific milestones. Transistors work by controlling electric current using an electric field,…

Physicists recreate extreme quantum vacuum effects

https://phys.org/news/2025-06-physicists-recreate-extreme-quantum-vacuum.html

Published: June 5, 2025 07:02

Using advanced computational modeling, a research team led by the University of Oxford, working in partnership with the Instituto Superior Técnico at the University of Lisbon, has achieved the first-ever real-time, three-dimensional simulations of how…

Study predicts existence of Type-III multiferroics, which exhibit ferroelectricity-driven magnetism

https://phys.org/news/2025-06-iii-multiferroics-ferroelectricity-driven-magnetism.html

Published: June 5, 2025 06:30

Multiferroics are materials that exhibit more than one ferroic property, typically ferroelectricity (i.e., a spontaneous electric polarization that can be reversed by electric fields) and ferromagnetism (i.e., the spontaneous magnetic ordering of electron…