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Spin Polarization

All articles tagged with #spin polarization

science-and-technology1 year ago

Quantum Spin Breakthrough Boosts Fusion Efficiency and Reduces Tritium Needs

Scientists at Princeton Plasma Physics Laboratory have achieved a breakthrough in nuclear fusion by reducing the amount of tritium needed for reactions by tenfold. This was accomplished by adjusting the deuterium-tritium fuel mix and employing spin polarization, which aligns the quantum spins of fuel atoms to increase fusion efficiency. This advancement not only minimizes the risks and costs associated with tritium but also paves the way for more compact and cost-effective fusion power plants.

science-and-technology2 years ago

Longer-lasting exciton breakthrough in quantum information science.

Scientists have created a long-lived exciton in a topological material using time-, spin-, and angle-resolved photoemission spectroscopy. The exciton is robust to disorder and retains the special spin properties inherent to topological surface states. This breakthrough opens up new research directions for optoelectronics and quantum computing, as longer exciton lifetimes and new ways of transferring information that don't rely on the charge of electrons are needed.