Coherent Electron States in Superconductivity
- Electrons are fermions, but when they pair up into Cooper pairs they act as bosons, and so can collectively form a coherent state at low temperatures. Such coherent states are part of the explanation of effects such as the Quantum Hall effect in low-temperature superconducting semiconductors.
Read more about this topic: Coherent States
Famous quotes containing the words coherent and/or states:
“We have good reason to believe that memories of early childhood do not persist in consciousness because of the absence or fragmentary character of language covering this period. Words serve as fixatives for mental images. . . . Even at the end of the second year of life when word tags exist for a number of objects in the child’s life, these words are discrete and do not yet bind together the parts of an experience or organize them in a way that can produce a coherent memory.”
—Selma H. Fraiberg (20th century)
“... there is a place in the United States for the Negro. They are real American citizens, and at home. They have fought and bled and died, like men, to make this country what it is. And if they have got to suffer and die, and be lynched, and tortured, and burned at the stake, I say they are at home.”
—Amanda Berry Smith (1837–1915)