This Quantum Fluid Freezes When Heated
Physicists finally understand why heating a supercold quantum fluid freezes it into a solid.....»»
Fundamental equation for superconducting quantum bits revised
Physicists from Forschungszentrum Jülich and the Karlsruhe Institute of Technology have uncovered that Josephson tunnel junctions—the fundamental building blocks of superconducting quantum computers—are more complex than previously thought......»»
Researchers solve a foundational problem in transmitting quantum information
Future quantum electronics will differ substantially from conventional electronics. Whereas memory in the latter is stored as binary digits, the former is stored as qubits, which can take many forms, such as entrapped electrons in nanostructures know.....»»
A multi-ensemble atomic clock enhanced using quantum computing tools
Atomic clocks are a class of clocks that leverage resonance frequencies of atoms to keep time with high precision. While these clocks have become increasingly advanced and accurate over the years, existing versions might not best utilize the resource.....»»
Flowermon: A superconducting qubit based on twisted cuprate van der Waals heterostructures
Quantum technology could outperform conventional computers on some advanced optimization and computational tasks. In recent years, physicists have been working to identify new strategies to create quantum systems and promising qubits (i.e., basic uni.....»»
How semiconductor defects could boost quantum technology
In diamonds (and other semiconducting materials), defects are a quantum sensor's best friend. That's because defects, essentially a jostled arrangement of atoms, sometimes contain electrons with an angular momentum, or spin, that can store and proces.....»»
Researchers demonstrate multi-photon state transfer between remote superconducting nodes
Over the past few decades, quantum physicists and engineers have been trying to develop new, reliable quantum communication systems. These systems could ultimately serve as a testbed to evaluate and advance communication protocols......»»
Alternate qubit design does error correction in hardware
Early-stage technology has the potential to cut qubits needed for useful computers. Enlarge (credit: Nord Quantique) There's a general consensus that performing any sort of complex algorithm on quantum hardware will have.....»»
Researchers show classical computers can keep up with, and surpass, their quantum counterparts
Quantum computing has been hailed as a technology that can outperform classical computing in both speed and memory usage, potentially opening the way to making predictions of physical phenomena not previously possible......»»
Evidence that atomically thin hafnium telluride is an excitonic insulator
The condensation of excitons with non-zero momentum can give rise to so-called charge density waves (CDW). This phenomenon can prompt the transition of materials into a fascinating new quantum phase, known as an excitonic insulator......»»
Physicists detect elusive "Bragg glass" phase with machine learning tool
Cornell quantum researchers have detected an elusive phase of matter, called the Bragg glass phase, using large volumes of X-ray data and a new machine learning data analysis tool. The discovery settles a long-standing question of whether this almost.....»»
Unlocking quantum precision: Expanded superconducting strips for enhanced photon-counting accuracy
Using single photons as qubits has become a prominent strategy in quantum information technology. Accurately determining the number of photons is crucial in various quantum systems, including quantum computation, quantum communication, and quantum me.....»»
Combining materials may support unique superconductivity for quantum computing
A new fusion of materials, each with special electrical properties, has all the components required for a unique type of superconductivity that could provide the basis for more robust quantum computing. The new combination of materials, created by a.....»»
New techniques for making qubits out of erbium
Qubits are the building block for quantum technology, and finding or building qubits that are stable and easily manipulated is one of the central goals of quantum technology research. Scientists have found that an atom of erbium—a rare-earth metal.....»»
Quantum materials: A new state of matter with chiral properties
An international research group has discovered a new state of matter characterized by the existence of a quantum phenomenon called chiral current. These currents are generated on an atomic scale by a cooperative movement of electrons, unlike conventi.....»»
Quantum simulation with ultracold fermions unveils pairing pseudogap
A research team has, for the first time, observed and quantitatively characterized the many-body pairing pseudogap in unitary Fermi gases. This achievement, pursued by the ultracold atomic community for nearly two decades, resolves longstanding debat.....»»
High fidelity spatial mode quantum gates enabled by diffractive neural networks
Reliable quantum gates are the fundamental component of quantum information processing. However, achieving high-dimensional unitary transformations in a scalable and compact manner with ultrahigh fidelities remains a great challenge......»»
Breaking boundaries in quantum photonics: New nanocavities unlock new frontiers in light confinement
In a significant leap forward for quantum nanophotonics, a team of European and Israeli physicists has introduced a new type of polaritonic cavities and redefined the limits of light confinement. This pioneering work, detailed in a study published in.....»»
3 ways to achieve crypto agility in a post-quantum world
Working at the speed of digital business is a constant challenge. But in today’s increasingly automated operational environment, crypto agility—i.e., an organization’s ability to (at the moment of compromise) switch rapidly and seamlessly betwe.....»»
Quantum cutting, upconversion, and temperature sensing help with thermal management in silicon-based solar cells
Introducing light conversion materials into silicon-based photovoltaic devices is an effective way to improve their photoelectric conversion efficiency. Light conversion materials include quantum cutting materials and upconversion materials......»»
Ocean sponges suggest Earth has warmed longer, more than thought; some scientists dubious
A handful of centuries-old sponges from deep in the Caribbean are causing some scientists to think human-caused climate change began sooner and has heated the world more than they thought......»»