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Quantum Physics news
Researchers demonstrate the UK's first long-distance ultra-secure communication over a quantum network
Researchers have successfully demonstrated the UK's first long-distance ultra-secure transfer of data over a quantum communications network, including the UK's first long-distance quantum-secured video call.
Optics & Photonics
12 hours ago
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A new dissipation-based method to probe quantum correlations
Quantum systems are known to be prone to dissipation, a process that entails the irreversible loss of energy and that is typically linked to decoherence. Decoherence, or the loss of coherence, occurs when interactions between ...
Scientists achieve high-efficiency single-photon source above loss-tolerant threshold
Research teams from USTC have realized a high-performance single-photon source with an efficiency beyond the scalable linear optical quantum computing loss tolerance threshold for the first time. Led by Prof. Pan Jianwei, ...
Optics & Photonics
Apr 7, 2025
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Driven to succeed: Physicists explore a new way to control quasiparticles
For the better part of a century, the quantum objects known as quasiparticles have been all dressed up with nowhere to go. But that may change, now that a Yale-led team of physicists has shown it is possible to exert a greater ...
Quantum Physics
Apr 7, 2025
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Quantum cosmology with final states can explain the accelerated expansion of the universe
Teleology is the idea that some processes in nature are directed toward a goal or an end. Today, it is commonly asserted that teleology is a remnant of antiquated ways of thinking about causation, and that it is not compatible ...
Physicists uncover a metallic altermagnet with d-wave spin splitting at room temperature
For many years, physics studies focused on two main types of magnetism, namely ferromagnetism and antiferromagnetism. The first type entails the alignment of electron spins in the same direction, while the latter entails ...
Hot Schrödinger cat states created
Quantum states can only be prepared and observed under highly controlled conditions. A research team from Innsbruck, Austria, has now succeeded in creating so-called hot Schrödinger cat states in a superconducting microwave ...
Quantum Physics
Apr 4, 2025
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Infrared heavy-metal-free quantum dots deliver sensitive and fast sensors for eye-safe LIDAR applications
The frequency regime lying in the shortwave infrared (SWIR) has very unique properties that make it ideal for several applications, such as being less affected by atmospheric scattering as well as being "eye-safe." These ...
Optics & Photonics
Apr 3, 2025
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Physicists uncover electronic interactions mediated via spin waves
Research by physicists at The City College of New York is being credited for a novel discovery regarding the interaction of electronic excitations via spin waves. The finding by the Laboratory for Nano and Micro Photonics ...
Condensed Matter
Apr 3, 2025
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Error correction method reduces photon requirements for quantum computing
An invention from Twente improves the quality of light particles (photons) to such an extent that building quantum computers based on light becomes cheaper and more practical. The researchers published their research in the ...
Optics & Photonics
Apr 3, 2025
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Microwave pulses can control ion-molecule reactions at near absolute zero
A key objective of ongoing research rooted in molecular physics is to understand and precisely control chemical reactions at very low temperatures. At low temperatures, the chemical reactions between charged particles (i.e., ...
Scientists unveil new way to electrically control spin for ultra-compact devices using altermagnetic quantum materials
Spintronics, an emerging field of technology, exploits the spin of electrons rather than their charge to process and store information. Spintronics could lead to faster, more power-efficient computers and memory devices. ...
Condensed Matter
Apr 2, 2025
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Enhancing light control with complex frequency excitations
Researchers at the Advanced Science Research Center at the CUNY Graduate Center (CUNY ASRC) and at Florida International University report in the journal Science their insights on the emerging field of complex frequency excitations, ...
Optics & Photonics
Apr 2, 2025
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A router for photons: Transducer could enable superconducting quantum networks
Applied physicists at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have created a photon router that could plug into quantum networks to create robust optical interfaces for noise-sensitive ...
Optics & Photonics
Apr 2, 2025
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Hidden side channels in quantum sources could compromise secure communication
A team of researchers from University of Toronto Engineering has discovered hidden multi-dimensional side channels in existing quantum communication protocols.
Quantum Physics
Apr 1, 2025
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A quantum superhighway for ultrafast NOON states
Until now, creating quantum superpositions of ultra-cold atoms has been a real headache, too slow to be realistic in the laboratory. Researchers at the University of Liège have now developed an innovative new approach combining ...
Condensed Matter
Mar 31, 2025
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Study proposes new mechanism underpinning intrinsic strange metal behavior
Quantum critical points are thresholds that mark the transition of materials between different electronic phases at absolute zero temperatures, around which they often exhibit exotic physical properties.
Scientists develop method to speed up quantum measurements using space-time trade-off
In an attempt to speed up quantum measurements, a new Physical Review Letters study proposes a space-time trade-off scheme that could be highly beneficial for quantum computing applications.
Quantum entanglement reveals strange metals' unique electron behavior at critical point
Scientists have long sought to unravel the mysteries of strange metals—materials that defy conventional rules of electricity and magnetism. Now, a team of physicists at Rice University has made a breakthrough in this area ...
General Physics
Mar 29, 2025
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Quantum imaging method developed for enhanced image clarity
For decades, quantum imaging has promised sharper images and greater light sensitivity than classical methods by exploiting the unique properties of quantum light, such as photon entanglement. But the approaches to do so ...
Optics & Photonics
Mar 28, 2025
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More news
Liquid-crystal platform overcomes optical losses in photonic circuits
Novel protocol enables photon entanglement without quantum measurement
Listening to quantum atoms talk together thanks to acoustics
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Predicting animal movements under global change
Sperm don't just swim, they screw their way forward
Nurturing mothers help baby monkeys recognize key facial expressions
