Let’s see why the map of a 2D crystal’s quantum geometry takes a doughnutlike shape called a torus. In general, the repeating patterns in crystals limit the possible states of the electrons inside ...

Mostly cloudy with a high of 86 °F (30 °C) and a 51% chance of precipitation. Winds SW at 14 to 15 mph (22.5 to 24.1 kph). Night - Cloudy with a 66% chance of precipitation. Winds variable at 7 ...