Science & Research
Attaining Quantum Supremacy, Closer?
University of Queensland researchers concluded an experiment bringing the path to quantum supremacy that much closer. And “The real message of this experiment is to not fear…researchers will have a more complete picture of boson sampling with loss, allowing them to forge new paths to a demonstration of quantum supremacy.”
Optical Phonons Theory is “Under Control”
Tokyo Institute of Technology researchers have matched theory to observation and thus have achieved a “comprehensive understanding of the coherent control of coherent optical phonons.” The usefulness of which is geared toward quantum computing memory systems as well as materials science and superconductivity.
University of Melbourne Sets Quantum Record Using “961,307”
The Australian research team at the U. of Melbourne has simulated a 60-qubit quantum computer. Estimations for the algorithm given it to process would require
Macroscopic Quantum Coherence of Superconductors
A Russian research group at the Moscow Institute of Physics and Technology has demonstrated a superconductor feature known as Abrikosov vortices exists in non-superconducting metal when in contact with a superconductor. The nexus for quantum computers and this finding lays in the key property of superconductors: Quantum coherence. This “macroscopic quantum coherence of superconductors” may be harnessed to enable qubits.
Quantum Dots and Donor Atoms
The U.S. Department of Energy’s research teams recently integrated quantum dots and donor atoms to produce qubits with little degradation. There are two primary benefits from this new qubit. First, maintaining of the quantum data stored in the spin (coherence). Second, use of silicon materials which have manufacturing infrastructure readily available. Keeping coherence high is a necessity to developing practical quantum computers.
Doughnut-Shaped Pulses of Light to Transfer Data?
University of Rochester researchers have published a list of ’12 Herculean tasks’ they believe will inspire the next quantum scientists. One of the authors demonstrated the use of ‘twisted light’ to slightly more than double data-throughput per photon. The approach utilized the mechanics of orbital angular momentum (OAM) of photons for encoding the data. Two of the tasks put forth to ponder are, “What is the future of quantum coherence, squeezing, and entanglement for enhanced super resolution and sensing?”, “How can we solve some of humanity’s biggest problems through new quantum technologies?”
Yale Aims to Hop On-Board then Ahead…
Yale sees quantum science and technology as a “new frontier of fundamental knowledge” about the universe; hopes to expand program to international acclaim.
Global Quantum Key Distribution Network Partners Announced
In May, the European Space Agency (ESA) teamed with Satellite-Enabled Solutions (SES) to develop the Quantum Cryptography Telecommunication System, aka QUARTZ. Last week, SES announced ten partners in the project, each of which will contribute to the quantum key distribution system.
Qubit Control thru Silicon and Magnetism
Silicon-based qubits have spin-orbits which are manipulated with magnetic fields more readily than other means available. Designers from the University of Wisconsin-Madison created the experimental device, based on silicon. Research scientists from Purdue University and the Technological University of Delft conducted the experimentation. The spin-orbit strength was found to be dependent on magnetic fields from external sources coupled with the silicon surface material; where qubits reside as quantum dots.