Text this: Topological pumping in Aharonov – Bohm rings

  _  __    _____     _____      ___     _    _   
 | |/ //  |  ___||  /  ___||   / _ \\  | \  / || 
 | ' //   | ||__   | // __    / //\ \\ |  \/  || 
 | . \\   | ||__   | \\_\ || |  ___  ||| .  . || 
 |_|\_\\  |_____||  \____//  |_||  |_|||_|\/|_|| 
 `-` --`  `-----`    `---`   `-`   `-` `-`  `-`