Preparation of F-passivated ZnO for quantum dot photovoltaics
For photovoltaic power generation, pn junction is the core unit. The electric field in the junction can separate and transport the electron and the hole to negative and positive electrodes, respectively. Once the pn junction is connected with a load.....»»
Study unveils limits on the extent to which quantum errors can be "undone" in large systems
Quantum computers have the potential of outperforming conventional computers on some practically relevant information processing problems, possibly even in machine learning and optimization. Yet their large-scale deployment is not yet feasible, large.....»»
Achieving quantum memory in the notoriously difficult X-ray range
Light is an excellent carrier of information used not only for classical communication technologies but also increasingly for quantum applications such as quantum networking and computing. However, processing light signals is far more complex, compar.....»»
Quantum computing: Finding solutions by the people for the people
PEARC24 launched its first Workshop on Broadly Accessible Quantum Computing (QC) as the full conference began, July 22, in Providence, RI. Led by NCSA's Bruno Abreu and QuEra's Tomasso Macri, 30+ participants included quantum chemists, system adminis.....»»
The link between fuzzy images and quantum fields
Mathematical solutions to thorny quantum problems can be found more quickly by exploiting the correspondence between the statistical methods used in deep learning and techniques for implementing quantum simulations, a team led by a RIKEN researcher h.....»»
X-ray imagery of vibrating diamond opens avenues for quantum sensing
When it comes to materials for quantum sensors, diamond is the best game in town, says Cornell University professor Gregory Fuchs. Now he and a team of scientists have upped diamond's game by generating exquisite imagery of diamond undergoing microsc.....»»
After AI, quantum computing eyes its "Sputnik" moment
Quantum computing promises society-changing breakthroughs in drug development and tackling climate change, and on an unassuming English high street, the race to unleash the latest tech revolution is gathering pace......»»
Can quantum particles mimic gravitational waves?
When two black holes collide, space and time shake and energy spreads out like ripples in a pond. These gravitational waves, predicted by Einstein in 1916, were observed for the first time by the Laser Interferometer Gravitational-Wave Observatory (L.....»»
Experiment uses quantum techniques to stimulate photons, enhancing search for dark matter
Scientists cannot observe dark matter directly, so to "see" it, they look for signals that it has interacted with other matter by creating a visible photon. However, signals from dark matter are incredibly weak. If scientists can make a particle dete.....»»
Layered superconductor coaxed to show unusual properties with potential for quantum computing
A team led by researchers from the California NanoSystems Institute at UCLA has designed a unique material based on a conventional superconductor—that is, a substance that enables electrons to travel through it with zero resistance under certain co.....»»
Quantum information theorists shed light on entanglement, one of the spooky mysteries of quantum mechanics
The year 2025 marks the 100th anniversary of the birth of quantum mechanics. In the century since the field's inception, scientists and engineers have used quantum mechanics to create technologies such as lasers, MRI scanners and computer chips......»»
Researchers develop general framework for designing quantum sensors
Researchers from North Carolina State University and the Massachusetts Institute of Technology have designed a protocol for harnessing the power of quantum sensors. The protocol could give sensor designers the ability to fine-tune quantum systems to.....»»
Researchers identify unique phenomenon in Kagome metal
In traditional Japanese basket-weaving, the ancient "Kagome" design seen in many handcrafted creations is characterized by a symmetrical pattern of interlaced triangles with shared corners. In quantum physics, the Kagome name has been borrowed by sci.....»»
Optical fibers fit for the age of quantum computing
A new generation of specialty optical fibers has been developed by physicists at the University of Bath in the UK to cope with the challenges of data transfer expected to arise in the future age of quantum computing......»»
"Kink state" control may provide pathway to quantum electronics
The key to developing quantum electronics may have a few kinks. According to a team led by researchers at Penn State, that's not a bad thing when it comes to the precise control needed to fabricate and operate such devices, including advanced sensors.....»»
US solar production soars by 25 percent in just one year
2024 is seeing the inevitable outcome of the building boom in solar farms. Enlarge (credit: Vithun Khamsong) With the plunging price of photovoltaics, the construction of solar plants has boomed in the US. Last year, for.....»»
Somersaulting spin qubits for universal quantum logic could enhance control in larger arrays
Researchers at QuTech developed somersaulting spin qubits for universal quantum logic. This achievement may enable efficient control of large semiconductor qubit arrays. The research group published their demonstration of hopping spins in Nature Comm.....»»
Optimization algorithm successfully computes the ground state of interacting quantum matter
Over the past decades, computer scientists have developed various computing tools that could help to solve challenges in quantum physics. These include large-scale deep neural networks that can be trained to predict the ground states of quantum syste.....»»
Scientists try to replicate ancient butchering methods to learn how Neanderthals ate birds
It's hard to know what Neanderthals ate: food preparation, especially when it comes to smaller items like birds, can leave few archaeological traces. But understanding their diets is critical to understanding these incredibly adaptable hominins, who.....»»
Combining trapped atoms and photonics for new quantum devices
Quantum information systems offer faster, more powerful computing methods than standard computers to help solve many of the world's toughest problems. Yet fulfilling this ultimate promise will require bigger and more interconnected quantum computers.....»»
Unequal access to quantum information education may limit progress—now is the time to improve
Quantum information science uses the physics that describes the smallest particles—such as electrons or photons—to potentially revolutionize computing and related technologies. This new field can be used for a wide range of applications, from dev.....»»