A recent study published in PRX Quantum reveals that quantum machine learning algorithms are hindered by excessive entanglement, leading to a phenomenon known as barren plateaus. By limiting depth and connectivity, researchers propose a solution to avoid these regimes and successfully train quantum neural networks.
Australian researchers have located the 'sweet spot' for positioning qubits in silicon, essential for developing robust interactions between qubits. The team used scanning tunnelling microscope (STM) lithography techniques to precisely place phosphorus atoms and create reproducible, strong and fast interactions.
Researchers at UNSW Sydney demonstrated the lowest recorded charge noise for a semiconductor qubit, reducing it by 10 times compared to previous results. The team's achievement shows promise for large-scale error-corrected quantum computers and moves closer to commercializing silicon quantum computers.
Researchers have demonstrated coherence times up to 10,000 times longer than previously recorded for spin-orbit qubits, making them an ideal candidate for scaling up silicon quantum computers. Strong spin-orbit coupling is key to achieving stable qubits and robust quantum information.
Researchers have successfully created a large-scale quantum processor made entirely of laser light, providing a scalable solution to overcome current limitations in quantum computing. The design allows for the generation of a massive two-dimensional cluster state with built-in scalability.
Researchers have discovered a new way to manipulate spin-orbit coupling in silicon to create compact and efficient qubits for large-scale quantum computing. This breakthrough enables fast read-out of the spin state of just two boron atoms in an extremely compact circuit, hosting all devices in a commercial transistor.
Researchers have developed a topological photonic chip to process quantum information, demonstrating high-fidelity quantum interference and paving the way for scalable quantum computers. The breakthrough could lead to new materials, generation computers, and deeper understanding of fundamental science.
Researchers at The Australian National University have developed a groundbreaking material that enables a global quantum internet by storing quantum information in an erbium-doped crystal for more than a second, significantly longer than previous attempts. This breakthrough aims to unlock the full potential of future quantum computers.
Researchers create non-invasive ESR imaging technique using quantum probes to detect and image electronic spins with sub-cellular resolution. This breakthrough provides new insights into the role of transition metal ions in biology and disease, offering a promising tool for probing human biochemistry.
Researchers have developed a quantum probe to perform microwave-free NMR at the nanoscale, overcoming limitations of conventional methods. This technique enables non-invasive detection of nuclear spins in smaller volumes, potentially revolutionizing biotechnology and materials science.
Researchers have developed a new theoretical framework to identify computations that occupy the 'quantum frontier', the boundary between problems solvable by classical and quantum computers. The study shows that these computations can be performed with near-term, intermediate quantum computers.
A team led by Professor Lloyd Hollenberg imaged electric currents in graphene using a diamond-based quantum sensor. The technique reveals microscopic behavior of current in quantum computing devices and 2D materials, enabling improved reliability and performance.
A team of researchers has devised a new way to implement large-scale interferometers that can dramatically miniaturize optical processing circuitry. By leveraging recent breakthroughs in quantum information, the 'measurement-based linear optics' technique harnesses existing compact methods for generating large-scale cluster states.
Researchers at ANU and UQ have developed a cloning method that produces higher-quality quantum clones than existing methods, with a success rate of about 5%. This breakthrough could enable ultra-secure encryption over long distances, overcoming the limitations of current quantum communication systems.