URL: Quantum Physics

Quantum Physics News

Friday, December 5, 2025

• Rydberg-atom detector conquers a new spectral frontier
  A team from the Faculty of Physics and the Center for Quantum Optical Technologies at the Center of New Technologies, University of Warsaw has developed a new method for measuring elusive terahertz signals using a "quantum antenna."
  
• Shaping quantum light unlocks new possibilities for future technologies
  Researchers from the School of Physics at Wits University, working with collaborators from the Universitat Autònoma de Barcelona, have demonstrated how quantum light can be engineered in space and time to create high-dimensional and multidimensional quantum states. Their work highlights how structured photons—light whose spatial, temporal or spectral properties are deliberately shaped—offer new pathways for high-capacity quantum communication and advanced quantum technologies.
  

Thursday, December 4, 2025

• Quantum technology moves from lab to life, but widespread use remains years away
  Quantum technology is accelerating out of the lab and into the real world, and a new article argues that the field now stands at a turning point—one that is similar to the early computing age that preceded the rise of the transistor and modern computing.
  
• LHC data confirm validity of new model of hadron production—and test foundations of quantum mechanics
  A boiling sea of quarks and gluons, including virtual ones—this is how we can imagine the main phase of high-energy proton collisions. It would seem that particles here have significantly more opportunities to evolve than when less numerous and much "better-behaved" secondary particles spread out from the collision point. However, data from the LHC accelerator prove that reality works differently, in a manner that is better described by an improved model of proton collisions.
  
• A solid-state quantum processor based on nuclear spins
  Quantum computers, systems that process information leveraging quantum mechanical effects, have the potential of outperforming classical systems on some tasks. Instead of storing information as bits, like classical computers, they rely on so-called qubits, units of information that can simultaneously exist in superpositions of 0 and 1.
  

Wednesday, December 3, 2025

• Deciphering the heavyweights of the tetraquark world
  The CMS collaboration reports the first measurement of the quantum properties of a family of tetraquarks that was recently discovered at the LHC.
  
• Pinning down spinless glueballs: New look at hidden structure inside subatomic particles
  SUNY Poly Professor of Physics Dr. Amir Fariborz recently published a paper in Physical Review D titled "Spinless glueballs in generalized linear sigma model." The work takes on a central challenge in modern physics: understanding how the strongest force in nature shapes the inner structure of matter, and how it may produce an unusual form of matter made entirely from the carriers of that force.
  
• Terahertz device sets performance record and opens new quantum horizons
  A prototype device that has demonstrated record-breaking longevity could help open up new frontiers in next-generation communications and computing technologies.
  

Tuesday, December 2, 2025

• New levitating sensors could pave way to dark matter detection and quantum sensing
  A new type of sensor that levitates dozens of glass microparticles could revolutionize the accuracy and efficiency of sensing, laying the foundation for better autonomous vehicles, navigation and even the detection of dark matter.
  
• Scientists advance quantum signaling with twisted light technology
  A tiny device that entangles light and electrons without super-cooling could revolutionize quantum tech in cryptography, computing, and AI.
  
• Geodesic approach links quantum physics and gravitation
  It is something like the "Holy Grail" of physics: unifying particle physics and gravitation. The world of tiny particles is described extremely well by quantum theory, while the world of gravitation is captured by Einstein's general theory of relativity. But combining the two has not yet worked—the two leading theories of theoretical physics still do not quite fit together.
  
• Synchrotron radiation sources: Toolboxes for quantum technologies
  Synchrotron radiation sources generate highly brilliant light pulses, ranging from infrared to hard X-rays, which can be used to gain deep insights into complex materials.
  
• Single-photon teleportation achieved between distant quantum dots for the first time
  An international research team involving Paderborn University has achieved a crucial breakthrough on the road to a quantum internet. For the first time ever, the polarization state of a single photon emitted from a quantum dot was successfully teleported to another physically separated quantum dot.
  

Monday, December 1, 2025

• On-demand electronic switching of topology achieved in a single crystal
  University of British Columbia (UBC) scientists have demonstrated a reversible way to switch the topological state of a quantum material using mechanisms compatible with modern electronic devices. Published in Nature Materials, the study offers a new route toward more energy efficient electronics based on topologically protected currents rather than conventional charge flow.
  
• Physicists create 'quantum wire' where mass and energy flow without friction or loss
  In physical systems, transport takes many forms, such as electric current through a wire, heat through metal, or even water through a pipe. Each of these flows can be described by how easily the underlying quantity—charge, energy, or mass—moves through a material.
  
• Controlling quantum states in germanene using only an electric field
  Researchers at the University of Twente and Utrecht University demonstrated for the first time that quantum states in the ultra-narrow material germanene can be switched on and off using only an electric field. The researchers were able to vary the electric field strength very precisely, causing the special 'topological' states in nanoribbons to disappear or appear.
  
• New digital state of matter could help build stable quantum computers
  Scientists have taken another major step toward creating stable quantum computers. Using a specialized quantum computer chip (an essential component of a quantum computer) as a kind of tiny laboratory, a team led by Pan Jianwei at the University of Science and Technology of China has created and studied a rare and complex type of matter called higher-order nonequilibrium topological phases.
  
• Calibrating qubit charge to make quantum computers even more reliable
  Quantum computers will be able to assume highly complex tasks in the future. With superconducting quantum processors, however, it has thus far been difficult to read out experimental results because measurements can cause interfering quantum state transitions.
  
• Noise-proof quantum sensor uses three calcium ions held in place by electric fields
  Researchers at the University of Innsbruck have shown that quantum sensors can remain highly accurate even in extremely noisy conditions. It's the first experimental realization of a powerful quantum sensing protocol, outperforming all comparable classical strategies—even under overwhelming noise.
  
• Detecting strong-to-weak symmetry breaking might be impossible, study shows
  When a system undergoes a transformation, yet an underlying physical property remains unchanged, this property is referred to as "symmetry." Spontaneous symmetry breaking (SSB) occurs when a system breaks out of this symmetry when it is most stable or in its lowest-possible energy state.
  

Saturday, November 29, 2025

• Probing the quantum nature of black holes through entropy
  In a study published in Physical Review Letters, physicists have demonstrated that black holes satisfy the third law of thermodynamics, which states that entropy remains positive and vanishes at extremely low temperatures, just like ordinary quantum systems. The finding provides strong evidence that black holes possess isolated ground states, a hallmark of quantum mechanical behavior.
  

Friday, November 28, 2025

• Can quantum computers help researchers learn about the inside of a neutron star?
  A new paper published in Nature Communications could put scientists on the path to understanding one of the wildest, hottest, and most densely packed places in the universe: a neutron star.
  
• Google Quantum AI realizes three dynamic surface code implementations
  Quantum computers are computing systems that process information leveraging quantum mechanical effects. These computers rely on qubits (i.e., the quantum equivalent of bits), which can store information in a mixture of states, as opposed to binary states (0 or 1).
  
• Quantum sensor based on silicon carbide qubits operates at room temperature
  Over the past decades, physicists and quantum engineers introduced a wide range of systems that perform desired functions leveraging quantum mechanical effects. These include so-called quantum sensors, devices that rely on qubits (i.e., units of quantum information) to detect weak magnetic or electric fields.
  

Thursday, November 27, 2025

• Entanglement-enhanced optical lattice clock achieves unprecedented precision
  Optical lattice clocks are devices that measure the passing of time via the frequency of light that is absorbed or emitted by laser-cooled atoms trapped in a repeating pattern of light interference known as optical lattice.
  
• Physicist delineates limits on the precision of quantum thermal machines
  Quantum thermal machines are devices that leverage quantum mechanical effects to convert energy into useful work or cooling, similarly to traditional heat engines or refrigerators. Thermodynamics theory suggests that increasing the reliability with which all thermal machines produce the same thermodynamic processes in time comes at a cost, such as the wasted heat or the need for extra energy.
  

Wednesday, November 26, 2025

• Corral technique measures fragile quantum states in magnet-superconductor hybrids from afar
  Hybrid materials made of magnets and superconductors give rise to fascinating quantum phenomena, which are so sensitive that it is crucial to measure them with minimal interference. Researchers at the University of Hamburg and the University of Illinois Chicago have now demonstrated, both experimentally and theoretically, how these quantum phenomena can be detected and controlled over longer distances using special techniques with a scanning tunneling microscope.
  
• Shop-bought cable helps power two quantum networks
  For decades, physicists have dreamed of a quantum internet: a planetary web of ultrasecure communications and super-powered computation built not from electrical signals, but from the ghostly connections between particles of light.
  
• Diamond defects, now in pairs, reveal hidden fluctuations in the quantum world
  In spaces smaller than a wavelength of light, electric currents jump from point to point and magnetic fields corkscrew through atomic lattices in ways that defy intuition. Scientists have only ever dreamed of observing these marvels directly.
  

Tuesday, November 25, 2025

• Adaptive method helps light-based quantum processors act more like neural networks
  Machine learning models called convolutional neural networks (CNNs) power technologies like image recognition and language translation. A quantum counterpart—known as a quantum convolutional neural network (QCNN)—could process information more efficiently by using quantum states instead of classical bits.