Researchers report a breakthrough in frequency up-conversion of single photons, based on a hollow-core Photonic Crystal Fiber (PCF) filled with hydrogen gas. First a spatio-temporal hologram of molecular vibrations is created in the gas by […]
Researchers at Stony Brook University report the formation of matter-wave polaritons in an optical lattice, an experimental discovery that permits studies of a central QIST paradigm through direct quantum simulation using ultracold atoms. The scientists […]
A new theorem from researchers at the RIKEN Center for Advanced Intelligence Project, Tokyo, and Keio University, Yokohama, provides an understanding of what types of long-range quantum entanglement survive at non-zero temperatures, revealing a fundamental […]
Researchers at University of Cologne have analyzed cutting-edge device structures of quantum computers to demonstrate that some of them are indeed operating dangerously close to a threshold of chaotic meltdown. The challenge is to walk […]
Determining whether a noisy quantum channel can be used to reliably transmit quantum information is a challenging problem in quantum information theory. This is because it requires computation of the channel’s coherent information for an […]
Developing non-classical light sources that can emit, on-demand, exactly one photon at a time is one of the main requirements of quantum technologies. But although the first demonstration of such a “single photon emitter”, or […]
Researchers from QuTech, in collaboration with Fujitsu and Element Six, have demonstrated the fault-tolerant operation of a quantum bit using a quantum processor based on spin qubits in diamond. The team has realized a logical […]
A team led by the U.S. Department of Energy’s (DOE) Argonne National Laboratory has announced the creation of a new qubit platform formed by freezing neon gas into a solid at very low temperatures, spraying […]
A team of physicists and mathematicians has discovered a new connection between superposition and entanglement that does not assume that quantum theory is correct. While quantum theory has proven to be supremely successful since its […]
An experiment that could confirm the fifth state of matter in the universe — and change physics as we know it — has been published by the University of Portsmouth in England. Dr. Melvin Vopson, a physicist, […]
A team of scientists at the Oxford University has described qubit coherence and low cross-talk and single-qubit gate errors in superconducting qubit architecture, suited for two-dimensional (2D) lattices of qubits. The experimental setup involved an inductively […]
Modern quantum technologies rely crucially on techniques to mitigate quantum decoherence. These techniques can be either passive, achieved for example via materials engineering, or active, typically achieved via pulsed monochromatic driving fields applied to the […]
A research group at TU Delft have discovered one-way superconductivity without magnetic fields, something that was thought to be impossible ever since its discovery in 1911—up until now. The discovery makes use of 2D quantum […]
When designing a quantum computer, a surprisingly large problem is bridging the communication gap between the classical and quantum worlds. Such computers need a specialized control and readout electronics to translate back and forth between […]
The research team, which includes collaborators from QuEra Computing, MIT, and the University of Innsbruck, developed a new approach for processing quantum information that allows them to dynamically change the layout of atoms in their […]
A research team from Yokohama National University is exploring quantum memory that is resilient against operational or environmental errors. To scale up a quantum computer based on superconducting qubits, scientists need to operate under a […]
Diamond nanocrystals, namely nanodiamonds, which host point defects such as nitrogen-vacancy (NV) centers, are a promising quantum material. A team of the University of Hong Kong (HKU) has developed a nano-precision printing method for nitrogen-vacancy […]
Quantum information processing (QIP) with solid state spin qubits strongly depends on the efficient initialisation of the qubit’s desired charge state. While the negatively charged tin-vacancy (SnV−) centre in diamond has emerged as an excellent […]
Since the beginning of quantum physics, how light moves and interacts with matter around it has mostly been described and understood mathematically through the lens of its energy. In 1900, Max Planck used energy to […]
Researcher at Lund University in Sweden have discovered a new way to create nano-sized magnetic particles using ultrafast laser light pulses. The revelation could pave the way for new and more energy-efficient technical components and […]
A new approach could make it possible detect the elusive Unruh effect in hours, rather than billions of years. Since the 1970s when it was first proposed, the Unruh effect has eluded detection, mainly because […]
Two teams of researchers working independently have shown the viability of using neutral atoms to create quantum circuits. One of the groups, with members from the University of Wisconsin, Madison, ColdQuanta and Riverlane, successfully ran […]
Stanford University researchers have developed a key experimental device for future quantum physics-based technologies that borrows a page from current, everyday mechanical devices. Reliable, compact, durable, and efficient, acoustic devices harness mechanical motion to perform […]
Physicists at the University of California have demonstrated the use of a hydrogen molecule as a quantum sensor in a terahertz laser-equipped scanning tunneling microscope, a technique that can measure the chemical properties of materials […]
Autonomous quantum error correction has gained considerable attention to avoid complicated measurements and feedback. Despite its simplicity compared with the conventional measurement-based quantum error correction, it is still a far from practical technique because of […]