The rate at which quantum computing is hitting the media stream is ever-increasing. This piece is a collection of recent articles and reports covering various aspects of quantum computing from the lens of science and research. Mea Cubitt
Integration of colour centres in silicon carbide nanophotonic structures with preserved spin-optical coherence | A promising route towards larger quantum computers is to orchestrate multiple task-optimised smaller systems. To dynamically connect and entangle any two systems, photonic interference emerges as a powerful method, due to its compatibility with on-chip devices and long-distance propagation in quantum networks. Source: nano werk. Integration of colour centres in silicon carbide nanophotonic structures with preserved spin-optical coherence…
A catalytic recipe for transforming quantum states | Quantum physicists at the University of Warsaw have discovered new applications for quantum catalysis—the quantum equivalent of chemical catalysis used in industry—revealing that quantum catalysts are useful in many more setups than previously known. The breakthrough could prove pivotal in future quantum key distribution networks or distributed quantum computing. Source: PHYS.ORG. A catalytic recipe for transforming quantum states…
Evidence for a delocalization quantum phase transition without symmetry breaking in CeCoIn5 | The study of quantum phase transitions that are not clearly associated with a broken symmetry is a major effort in condensed matter physics, particularly in the problem of high-temperature superconductivity where such transitions are thought to underlie the mechanism of superconductivity itself. In this study, we argue that the putative quantum critical point in the prototypical unconventional superconductor CeCoIn5 is characterized by the delocalization of electrons in a transition that connect two Fermi surfaces of different volumes, with no apparent broken symmetry. Drawing on established theory of f-electron metals, we discuss an interpretation for such a transition that involves the fractionalization of spin and charge, a model which well-describes the anomalous transport behavior we measure in the Hall effect. Source: Science. Evidence for a delocalization quantum phase transition without symmetry breaking in CeCoIn5…
Artificial material protects light states on smallest length scales | Light not only plays a key role as an information carrier for optical computer chips, particularly for the next generation of quantum computers. Its lossless guidance around sharp corners on tiny chips and the precise control of its interaction with other light are the focus of research worldwide. Scientists at Paderborn University have now demonstrated the spatial confinement of a light wave to a point smaller than the wavelength in a topological photonic crystal. These are artificial electromagnetic materials that facilitate robust manipulation of light. The state is protected by special properties and is important for quantum chips, for example. The findings have now been published in Science Advances. Source: PHYS.ORG. Artificial material protects light states on smallest length scales…
Argonne quantum research may reshape how we sense and relay data | Imagine sensors so sensitive that they can track the motion of a single atom. Or other sensors arranged in arrays to detect underground motions that may be precursors to earthquakes. Imagine new technologies to send information securely over specialized networks that are impossible to hack. Some of these ideas remain glimmers in the eyes of science — but then, so were tiny, portable computers just a few decades ago. Source: Argonne. Argonne quantum research may reshape how we sense and relay data…
IBM Partners with Top Indian Universities for Quantum Computing Research | IBM collaborates with India’s leading academic institutions to advance quantum computing education and research. Faculty and students at the 11 collaborating institutions will access IBM quantum systems, quantum learning resources, and quantum tools via IBM Cloud for educational and research reasons, enabling them to work on actual quantum computers. In addition, IBM’s Quantum Educators programme connects teachers in the quantum area and provides resources to support high-quality educational experiences. Source: aim. IBM Partners with Top Indian Universities for Quantum Computing Research…
A rocky fate for greenhouse gases | Tsukuba, Japan – Scientists at the University of Tsukuba used a sophisticated set of experimental tests, including synchrotron X-ray scattering and quantum computer modeling, to study the effect of temperature on the structure of magnesium carbonate. This work may lead to more efficient carbon capture technologies that lock carbon dioxide inside rocks as a way to combat climate change. Source: EurekAlert!. A rocky fate for greenhouse gases…
Novel quantum device design promises a regular flow of entangled electrons on demand | Quantum computer and many other quantum technologies rely on the generation of quantum-entangled pairs of electrons. However, the systems developed so far typically produce a noisy and random flow of entangled electrons, which hinders synchronized operations on the entangled particles. Now, researchers from Aalto University in Finland propose a way to produce a regular flow of spin-entangled electrons. Source: PHYS.ORG. Novel quantum device design promises a regular flow of entangled electrons on demand…
