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Quantum computing and others quantum
University of Iowa researchers have discovered a method to "purify" photons, an advance that could make optical quantum technologies more efficient and more secure.
"For the first time, the technology for building a global-scale quantum internet is within reach."
If quantum computing is going to become an every-day reality, we need better superconducting thin films, the hardware that enables storage and processing of quantum information. Too often, these thin films have impurities or other defects that make them useless for real quantum computer chips.
Author(s): Dalton Chaffee, Baruch Margulis, April Sheffield, Julian Schmidt, April Reisenfeld, David R. Leibrandt, Dietrich Leibfried, and Chin-Wen ChouMolecular quantum state preparation, coherent manipulation, and measurement with high fidelity are demonstrated in a polar molecule for the first time. [Phys. Rev. Lett. 135, 240801] Published Tue Dec 09, 2025
Author(s): S. Musolino, M. Albert, P. Vignolo, and A. MinguzziThe authors study the time modulation of the momentum distributions of one-dimensional Bose-Bose mixtures with strong repulsive interactions, described via SU(2)-symmetry-breaking Hamiltonians. They show that the phenomenon of symmetry oscillations is not restricted to a specific model or fine-tuned parameters, but instead constitutes a robust and universal dynamical feature of multicomponent strongly interacting one-dimensional quantum mixtures. [Phys. Rev. A 112, 063308] Published Wed Dec 10, 2025
Author(s): Jeffrey H. Shapiro, Clark Embleton, Michael G. Raymer, and Brian J. SmithPhotonic entanglement distribution is key for the emerging quantum internet. Here, the authors propose a spectral-multiplexing scheme that delivers favorable entanglement rates by combining domain-engineered crystals with zero-added-loss multiplexing. Their scheme uses a down-conversion crystal that can produce photon pairs in distinct, spectrally factorable “islands”, and by combining same- and cross-island heralding, they dramatically reduce the number of required spectral channels. [Phys. Rev. A 112, 062616] Published Wed Dec 10, 2025
Author(s): Gianvito Chiarella, Tobias Frank, Leart Zuka, Pau Farrera, and Gerhard RempeA new strategy boosts both the efficiency and reliability of quantum communication networks. [Phys. Rev. Lett. 135, 240802] Published Wed Dec 10, 2025
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Lots of progress, and plenty of opportunity. The post Quantum Technologies: Innovation and Investment appeared first on Semiconductor Engineering.
What if your conscious experiences were not just the chatter of neurons, but were connected to the hum of the universe? In a paper published in Frontiers in Human Neuroscience, I present new evidence indicating that conscious states may arise from the brain's capacity to resonate with the quantum vacuum—the zero-point field that permeates all of space.
Imagine a future where quantum computers supercharge machine learning—training models in seconds, extracting insights from massive datasets and powering next-gen AI. That future might be closer than you think, thanks to a breakthrough from researchers at Australia's national research agency, CSIRO, and The University of Melbourne.
Oversubscribed funding round thought to be the largest ever for a pure-play quantum networking company.
Arqit Quantum Inc. (NASDAQ:ARQQ) Q4 2025 Earnings Call Transcript December 9, 2025 Arqit Quantum Inc. reports earnings inline with expectations. Reported EPS is $-0.92 EPS, expectations were $-0.92. Operator: On today’s call, we will be referencing the press release issued this morning that details the company’s full fiscal year 2025 results, which can be downloaded […]
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IonQ, Inc. (NYSE:IONQ) is among the best hardware stocks to buy according to analysts. On December 8, IonQ, Inc. (NYSE:IONQ) announced the deployment of Slovakia’s pioneer quantum communication network, developed in partnership with the Institute of Physics, Slovak Academy of Sciences (IPSAS). This advanced system, built on a strong hybrid architecture, will positively contribute to […]
Ex-Intel CEO Pat Gelsinger warns quantum computing could end the GPU era as economists question how long today's AI bubble can last.
Isabella Ward / Bloomberg: Cambridge, UK-based Nu Quantum, which builds networking infrastructure to link and scale quantum computers, raised a $60M Series A led by National Grid Partners — Nu Quantum, a British startup that builds networking infrastructure to link and scale quantum computers, raised $60 million …
Researchers demonstrate that by shaping the spatial and temporal structure of photons, they can engineer customized quantum states suited for next-generation communication, sensing, and imaging technologies. Researchers at the School of Physics at Wits University, working with colleagues from the Universitat Autònoma de Barcelona, have shown that quantum light can be shaped across space and [...]
Researchers made iron telluride into a superconducting thin film by reducing crystal distortion, enabling use in quantum chips at very low temperatures.
A new technical paper titled “From Promise to Practice: Benchmarking Quantum Chemistry on Quantum Hardware” was published by researchers at Rensselaer Polytechnic Institute and IBM T.J. Watson Research Center. Abstract “We provide a systematic evaluation of the sample-based quantum diagonalization (SQD) method for electronic structure based on the W4-11 thermochemistry dataset, comprising 124 total atomization,... » read more The post Comparing Quantum Chemistry on Quantum Hardware (Rensselaer, IBM) appeared first on Semiconductor Engineering.
A research team has created a quantum antenna capable of precisely measuring terahertz frequency combs for the first time. A research team from the Faculty of Physics and the Centre for Quantum Optical Technologies at the Centre of New Technologies, University of Warsaw has introduced a new approach for detecting extremely weak terahertz signals by [...]
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Author(s): Ding Gu, Zijian Wang, and Zhong WangThe authors systematically unravel here the physical consequences of spontaneous symmetry breaking in open quantum systems. They elucidate three scenarios: weak symmetry breaking, which leads to time-crystalline order; strong-to-weak symmetry breaking, which universally generates a gapless Goldstone mode for charge diffusion; and the complete breaking of strong symmetry, characterized by two Goldstone modes that govern order-parameter fluctuations and conserved-charge diffusion, respectively. This work establishes a theoretical framework for characterizing symmetry breaking in open quantum matter. [Phys. Rev. B 112, 245123] Published Tue Dec 09, 2025
A researcher at the Department of Physics at Tohoku University has uncovered a surprising quantum phenomenon hidden inside ordinary crystals: the strength of interactions between electrons and lattice vibrations—known as phonons—is not continuous, but quantized. Even more remarkably, this strength is universally linked to one of the most iconic numbers in physics: the fine-structure constant.
A group from DESY Photon Science created a source of squeezed laser light on a component the size of a microchip. It is based on a tiny ring with a nanoscale structure that serves as a resonator. The team's development contributes to the industrialization of technologies such as tap-proof quantum internet or superfast quantum computers. Laser light usually displays the same degree of quantum blurring in its amplitude and phase. However, sophisticated laboratory techniques can be used to reduce the uncertainty in one of the two variables, such as the phase. Squeezing the light in this way increases the achievable accuracy of measurements. Although this automatically increases the uncertainty in the other variable, in this case, the...
Solid-state battery developer QuantumScape is approaching the end of 2025 with all of its key goals achieved. The latest development is the installation of key equipment to enable higher-volume QSE-5 cell production – the foundation for QuantumScape’s scaled solid-state battery manufacturing. more…
The People’s Liberation Army is testing what could be the world’s first portable quantum radio device in its border patrol troops, according to the official Science and Technology Daily. The PLA’s Information Support Force said its miniaturised prototype of quantum communication, weighing 3kg (6.6lbs), had successfully received radio signals from tens of kilometres away. The team was able to read lines of decoded information, the newspaper reported last Thursday. “This successful experiment will...
Widely considered impossible, a team of materials scientists from the University of Oklahoma has successfully magnetized quantum dots by "doping" them with manganese.
Diamond nanoparticles containing nitrogen-vacancy centers can now monitor cellular metabolism in real time, targeting specific organelles while tracking particle movement inside living cells.
Scientists from the Indian Institute of Technology Bombay have found a way to use light to control and read tiny quantum states inside atom-thin materials. The simple technique could pave the way for computers that are dramatically faster and consume far less power than today's electronics.
Dutch chip manufacturing design firm, ASML, has been accused of selling chip fabrication hardware to a Chinese defence firm tied to the ruling party. Although it claims the technology was old, it has raised concerns over its potential use in developing new quantum technologies, particularly with military applications.
Devices could eliminate the strong magnetic fields currently required to define the standard unit of resistance The post Memristors could measure a single quantum of resistance appeared first on Physics World.
Scientists have found a way to use light to control and read tiny quantum states inside atom-thin materials. The simple technique could pave the way for computers that are dramatically faster and consume far less power than today's electronics.
Listening to the 'whispers' of electrons and crystals has lead to a quantum discovery with terahertz light that could help us advance technological innovations and life science research.
A new article examines the history of computing to help outline the direction of quantum research. It reports that quantum technology is advancing quickly, and that the major obstacles now involve expanding the systems to larger scales. Quantum technology is quickly moving beyond experimental setups and beginning to take shape in practical settings, and a [...]
With the successful introduction of manganese into perovskite nanoparticles, researchers have 'doped the undopable'.
Scientists have created a high-throughput computational strategy, creating a new, data-driven approach to finding ideal 2D materials and substrates.
Quantum technologies from ultrasensitive sensors to next-generation information processors depend on the ability of quantum bits, or qubits, to maintain their delicate quantum states for a sufficiently long time to be useful.
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Reliably quantifying and characterizing the quantum states of various systems is highly advantageous for both quantum physics research and the development of quantum technologies. Quantifying these states typically entails performing several measurements and reconstructing them via a process known as quantum-state tomography.
Author(s): Nayan Myerson-Jain, Xiao-Chuan Wu, and Cenke XuBulk topology and criticality can each give rise to nontrivial boundary phenomena. This work shows that their interplay, at unconventional quantum critical points between a quantum spin Hall insulator and a superconductor, produces an unexpectedly rich landscape of edge states. In addition to the usual quantum spin Hall edge modes, the authors identify novel “pseudogapped” chiral fermions, characterized by a strongly suppressed spectral function and super–power-law decay of the Green’s function. [Phys. Rev. B 112, L241110] Published Mon Dec 08, 2025
Author(s): Hao Du and Yuan-Yao HeGround-state auxiliary-field quantum Monte Carlo is a powerful tool for interacting fermions but is often limited by the bottleneck of costly local update. Here, the authors develop two acceleration schemes: the delayed update, which replaces multiple vector outer products by one matrix-matrix multiplication, and the block force-bias update, which retains high efficiency while tuning acceptance via block size. Applied to 2D Hubbard models, they yield up to ~ 8 times speedup in 1600-site systems. These update schemes can have broad applicability to general correlated fermion systems. [Phys. Rev. B 112, 235120] Published Mon Dec 08, 2025
Author(s): Henok Weldeyesus, T. Patlatiuk, Q. Chen, C. P. Scheller, D. M. Zumbühl, A. Yacoby, L. N. Pfeiffer, and K. W. WestA new method utilizes a GaAs 2D electron gas, combined with cleaved-edge overgrowth quantum wires, to accurately map the dispersions and velocities of individual edge states across a wide range of parameters. [Phys. Rev. Lett. 135, 246602] Published Mon Dec 08, 2025
Electrons can be elusive, but Cornell researchers using a new computational method can now account for where they go—or don't go—in certain layered materials.
QSC to accelerate convergence of quantum computing and exascale high-performance computing The post Oak Ridge Quantum Science Center prioritizes joined-up thinking, multidisciplinary impacts appeared first on Physics World.
A proposed European Union space law could cost both European and American space companies hundreds of millions of euros in lost revenue annually, according to a new study. The post Study quantifies costs of EU Space Act to European and U.S. companies appeared first on SpaceNews.
A team at the University of Wisconsin-Madison, working in collaboration with researchers at the University of Southern California Information Sciences Institute, has developed and tested an integrated photonic memory chip that it believes could soon bring optical computing connectivity to data centers and high-performance computing systems. The chip leverages parts and fabrication techniques currently used by established semiconductor foundries. “This memory can store light and operate at speeds beyond the reach of its electrical counterpart memory,” said Akhilesh Jaiswal, a UW-Madison assistant professor of electrical and computer engineering. “This is the first ever solution that provides a viable pathway to a...
Berlin, Germany (SPX) Dec 08, 2025 A team at TU Wien has developed a new way to connect quantum theory with general relativity by quantizing the spacetime metric and analyzing how this affects the paths that particles follow under gravity. Their work focuses on geodesics, the curves that represent the shortest connection between two points in curved spacetime and that underlie most applications of Einstein's theory, such as the o
A new technical paper “Artificial intelligence for quantum computing” was published by researchers at NVIDIA, University of Oxford, University of Toronto, Quantum Motion, University of Waterloo et al. Abstract “Artificial intelligence (AI) advancements over the past few years have had an unprecedented and revolutionary impact across everyday application areas. Its significance also extends to technical... » read more The post AI Techniques To Solve HW-SW Challenges For Useful Quantum Computing (Nvidia, U. of Oxford et al.) appeared first on Semiconductor Engineering.
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We recently published 10 Stocks Sparking Massive Fortunes. D-Wave Quantum Inc. (NYSE:QBTS) is one of the best performers on Friday. D-Wave Quantum grew its share prices by 19.1 percent week-on-week, with investor optimism fueled primarily by plans to lure government contracts with the formation of a new business unit solely focused on such. The stock […]
Albert Einstein and Niels Bohr had an ongoing rivalry about the true nature of quantum mechanics, and came up with a thought experiment that could settle the matter. Now, that experiment has finally been performed for real
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.
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Physicists have transformed a decades-old technique for simplifying quantum equations into a reusable, user-friendly "conversion table" that works on a laptop and returns results within hours.
Author(s): Michael SchirberResearchers have developed a protocol for resetting and reloading atoms that are inevitably lost during quantum computations. [Physics 18, s155] Published Thu Dec 04, 2025
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.
Erbium molecular qubits create a spin-photon interface compatible with telecom networks, enabling hybrid quantum devices and potential scalable quantum communication.
Increasingly popular theories hold that experimental outcomes really do depend on the observer
HomeScienceVol. 390, No. 6777A quantum centenaryBack To Vol. 390, No. 6777 Full accessIntroduction to Special IssueA quantum world Share on A quantum centenarySumin Jin, Jelena Stajic, and Eric HandAuthors Info & AffiliationsScience4 Dec 2025Vol 390, Issue 6777pp. 996-997 NEXT ARTICLEAccelerating science with AINext NotificationsBookmark ContentsInformation & AuthorsMetrics & CitationsView Optio…
Quantum mechanics has gone from a theory in test to becoming the foundation of new technologies
Large-scale quantum processors are beginning to uncover new physical phenomena
Dynamic characteristics of complex chemical reactions can be accurately modeled by a quantum computer
Quantum technologies have made impressive progress over the past decade. In some areas, such as quantum sensing and key distribution, these technologies are moving from the laboratory to enable real-world applications. However, for areas such as quantum ...
Increasingly popular theories hold that experimental outcomes really do depend on the observer
We recently published 10 Stocks Stealing Market Spotlight. Quantum Computing Inc. (NASDAQ:QUBT) is one of the best performers on Wednesday. Quantum Computing rallied for a second day on Wednesday, adding 9.73 percent to close at $12.07 apiece as investors continued to load portfolios to take advantage of its cheap valuation. The rally followed a 30 […]
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.
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Author(s): Y.-L. Xu, L. Zhang, C. Zhang, Y.-K. Wu, Y.-Y. Chen, C.-X. Huang, Z.-B. Cui, R. Yao, W.-Q. Lian, J.-Y. Ma, W.-X. Guo, B.-X. Qi, P.-Y. Hou, Y.-F. Pu, Z.-C. Zhou, L. He, and L.-M. DuanMetastable qubits with coherence time over two hours are constructed by encoding into decoherence-free subspace. [Phys. Rev. Lett. 135, 230803] Published Thu Dec 04, 2025
Author(s): J. A. Muniz et al.A neutral-atom quantum computing system that can repeatedly measure, reuse, and replace ancilla qubits without disrupting others enables longer computations and advances scalable, fault-tolerant operation. [Phys. Rev. X 15, 041040] Published Thu Dec 04, 2025
Tim Hsieh of the Perimeter Institute is our podcast guest The post Building a quantum future using topological phases of matter and error correction appeared first on Physics World.
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.
A collaborative research effort between teams in Italy, France, and the U.K. has developed a method to make photonic circuits more adaptable, while retaining their current technological compatibility. The researchers added a controlled step, called adaptive state injection, which allows a circuit to adjust its behavior based on a measurement taken during processing. According to the team, the extra control moves photonic quantum convolutional neural networks (QCNNs) closer to practical use. Convolution neural networks (CNNs) are used to power technologies such as image recognition and language translation. QCNNs may provide advantages in processing efficiency by using quantum states instead of classical bits. Photons are fast,...
A small, counterintuitive tweak to advanced materials can improve how quantum computers hand off information inside their systems, making them more efficient, reliable and scalable.
Dylan Butts / CNBC: Horizon Quantum, which aims to list on Nasdaq via a SPAC in Q1 2026, claims it is the first private company to deploy a commercial quantum computer in Singapore — Singapore-based software firm Horizon Quantum on Wednesday said it has become the first private company to run a quantum computer …
Researchers found that gold “super atoms” can behave like the atoms in top-tier quantum systems—only far easier to scale. These tiny clusters can be customized at the molecular level, offering a powerful, tunable foundation for the next generation of quantum devices. Gold Clusters as Scalable Quantum Building Blocks Quantum computers, sensors, and other advanced technologies [...]
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The music streaming service is no longer the only company quantifying our social lives.
A prototype device that has demonstrated record-breaking longevity could help open up new frontiers in next-generation communications and computing technologies.
New formulation sheds light on the three-level maser The post Quantum-scale thermodynamics offers a tighter definition of entropy appeared first on Physics World.
Quicker access to bleeding control interventions taught in the American College of Surgeons (ACS) "Stop the Bleed" program could have prevented the deaths of numerous homicide victims in Maryland, according to a first-of-its-kind analysis published in the Journal of the American College of Surgeons (JACS).
Researchers have uncovered clear evidence of exotic quantum excitations inside a rare 3D spin liquid, validating decades of theory. An international research group led by Pengcheng Dai of Rice University has now verified the presence of emergent photons and fractionalized spin excitations within a rare quantum spin liquid. Reported in Nature Physics, the study confirms [...]
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