All articles tagged with #quantum phase transitions
Researchers at Leibniz University Hannover have demonstrated that universal embezzlement of entanglement naturally occurs in all critical fermion chains, revealing that such quantum systems can act as embezzlers, which could have significant implications for many-body physics and quantum technology development.
Physicists have created a model system by stacking a pair of monolayer semiconductors to study the Kondo lattice problem, which involves a regular lattice of magnetic moments. The researchers simulated the Kondo lattice by rotating the layers at a 180-degree angle, resulting in a moiré lattice pattern that traps individual electrons in tiny slots. The simplified Kondo lattice only needs a battery, and when a voltage is applied just right, the material is ordered into forming a lattice of spins, producing a continuously tunable system. The tunability can induce quantum phase transitions whereby heavy electrons turn into light electrons with the possible emergence of a "strange" metal phase.