أرسل هذا في رسالة قصيرة: Geometric phase for entangled states of two spin-1/2 particles in rotating magnetic field

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