UCL researchers have developed a groundbreaking technique using arsenic atoms in silicon that achieves a 97% success rate for single-atom placement (compared to phosphorus’s 70%), potentially solving quantum computing’s twin challenges of error rates and scalability through scanning tunneling microscopy hydrogen resist lithography.
Researchers at China’s USTC have developed Zuchongzhi-3, a groundbreaking 105-qubit quantum computer that processes calculations 10^15 times faster than the most powerful supercomputers and one million times faster than Google’s latest quantum systems, marking a significant advancement in quantum supremacy.
IonQ is acquiring a controlling stake in quantum safe networking leader ID Quantique (IDQ) to strengthen its global quantum ecosystem, accelerate quantum networking development, and establish a strategic partnership with SK Telecom, with the acquisition expected to close in Q2 2025.
Quantum Machines has raised $170 million in Series C funding, bringing its total to $280 million, as the company’s hybrid control technology for quantum computing systems gains widespread adoption across the industry during a breakthrough year marked by significant hardware and error correction advancements.
An international research team has developed a groundbreaking technique to integrate superconductors with semiconductors by patterning platinum on germanium and heating it to form a superconducting alloy, demonstrating coherent quantum states that could enable hybrid quantum processors combining the scalability of semiconductor qubits with the long-range connectivity of superconducting circuits.
In a groundbreaking collaboration, QuTech, Eurofiber, Q*Bird, and Juniper have successfully developed and implemented a proof-of-concept quantum communication system in the Utrecht area of the Netherlands. This innovative project, called QuaSecom, demonstrates a significant advancement […]
Three spin-out companies set up by UK Quantum Technology Hub Sensors and Timing researchers received Quantum Catalyst funding, as announced by the Department for Science, Innovation and Technology (DSIT) on 5 February 2024. As part […]
Last week, University of Birmingham physicists and engineers from UK Quantum Technology Hub Sensors and Timing departed the UK on ship alongside Dstl scientists to continue the next phase of quantum experiments that could pave […]
The 2023 National Quantum Technologies Showcase is taking place this year on 2 November at the Business Design Centre, London. Organised by Innovate UK, EPSRC alongside the UK National Quantum Technologies Programme, this year’s event […]
A quantum sensor based on atom interferometry has been successfully tested in trials on a ship in the North Sea.
A new University of Birmingham spinout, Delta g, has raised £1.5 million in its pre-seed investment round to fast-track the commercial availability of its ground-breaking quantum technology gravity sensors for mapping the underground space. The […]
UK Quantum Technology Hub Sensors and Timing researchers at the Universities of Birmingham, Glasgow, Nottingham, National Physical Laboratory and Imperial College London have been awarded over £4 million in UKRI funding as part of a […]
A prototype quantum sensor with potential application in GPS-free navigation, built by UK Quantum Technology Hub Sensors and Timing researchers at Imperial College London, has been tested in collaboration with the Royal Navy. The test […]
Trapped ions have previously only been entangled in one and the same laboratory. Now, teams have entangled two ions over a distance of 230 meters. The nodes of this network were housed in two labs at the Campus Technik to the west of Innsbruck, Austria. The experiment shows that trapped ions are a promising platform for future quantum networks that span cities and eventually continents.
In a new breakthrough, researchers have solved a problem that has caused quantum researchers headaches for years. The researchers can now control two quantum light sources rather than one. Trivial as it may seem to those uninitiated in quantum, this colossal breakthrough allows researchers to create a phenomenon known as quantum mechanical entanglement. This in turn, opens new doors for companies and others to exploit the technology commercially.
Quasiparticles — long-lived particle-like excitations — are a cornerstone of quantum physics, with famous examples such as Cooper pairs in superconductivity and, recently, Dirac quasiparticles in graphene. Now, researchers have discovered quasiparticles in a classical system at room temperature: a two-dimensional crystal of particles driven by viscous flow in a microfluidic channel. Coupled by hydrodynamic forces, the particles form stable pairs — a first example of classical quasiparticles, revealing deep links between quantum and classical dissipative systems.
When two microscopic systems are entangled, their properties are linked to each other irrespective of the physical distance between the two. Manipulating this uniquely quantum phenomenon is what allows for quantum cryptography, communication, and computation. While parallels have been drawn between quantum entanglement and the classical physics of heat, new research demonstrates the limits of this comparison. Entanglement is even richer than we have given it credit for.
The quantum nature of objects visible to the naked eye is currently a much-discussed research question. A team has now demonstrated a new method in the laboratory that could make the quantum properties of macroscopic objects more accessible than before. With the method, the researchers were able to increase the efficiency of an established cooling method by an order of a magnitude.
An international summer school to train promising early career researchers in quantum technologies has been announced by the UK’s Quantum Technology (QT) Hubs. The network of QT Hubs has been awarded funding to host the […]
Optical fibres are the backbone of our modern information networks. From long-range communication over the internet to high-speed information transfer within data centres and stock exchanges, optical fibre remains critical in our globalised world.
Heat and computers do not mix well. If computers overheat, they do not work well or may even crash. But what about the quantum computers of the future? These high-performance devices are even more sensitive to heat. This is because their basic computational units — quantum bits or “qubits” — are based on highly-sensitive units, some of them individual atoms, and heat can be a crucial interference factor.
Two seemingly different areas of physics are related in subtle ways: Quantum theory and thermodynamics. How can the laws of thermodynamics arise from the laws of quantum physics? This question has now been pursued with computer simulations, which showed that chaos plays a crucial role: Only where chaos prevails do the well-known rules of thermodynamics follow from quantum physics.
Scientists have shown how three vortices can be linked in a way that prevents them from being dismantled. The structure of the links resembles a pattern used by Vikings and other ancient cultures, although this study focused on vortices in a special form of matter known as a Bose-Einstein condensate. The findings have implications for quantum computing, particle physics and other fields.
In a laboratory experiment, researchers have succeeded in realizing an effective spacetime that can be manipulated. In their research on ultracold quantum gases, they were able to simulate an entire family of curved universes to investigate different cosmological scenarios and compare them with the predictions of a quantum field theoretical model.
Water that simply will not freeze, no matter how cold it gets — a research group has discovered a quantum state that could be described in this way. Experts have managed to cool a special material to near absolute zero temperature. They found that a central property of atoms — their alignment — did not ‘freeze’, as usual, but remained in a ‘liquid’ state. The new quantum material could serve as a model system to develop novel, highly sensitive quantum sensors.
It’s easy to control the trajectory of a basketball: all we have to do is apply mechanical force coupled with human skill. But controlling the movement of quantum systems such as atoms and electrons is much more challenging, as these minuscule scraps of matter often fall prey to perturbations that knock them off their path in unpredictable ways. Movement within the system degrades — a process called damping — and noise from environmental effects such as temperature also disturbs its trajectory.
New research demonstrates a 20x improvement in resetting a quantum bit to its ‘0’ state, using a modern version of the ‘Maxwell’s demon’.
Researchers have successfully extended the quantum phase difference estimation algorithm, a general quantum algorithm for the direct calculations of energy gaps, to enable the direct calculation of energy differences between two different molecular geometries. This allows for the computation, based on the finite difference method, of energy derivatives with respect to nuclear coordinates in a single calculation.
Physicists have experimentally demonstrated for the first time that there is a negative correlation between the two spins of an entangled pair of electrons from a superconductor.
Quantum computers promise significantly shorter computing times for complex problems. But there are still only a few quantum computers worldwide with a limited number of so-called qubits. However, quantum computer algorithms can already run on conventional servers that simulate a quantum computer. A team has succeeded in calculating the electron orbitals and their dynamic development using an example of a small molecule after a laser pulse excitation.