أرسل هذا في رسالة قصيرة: Pairing correlations in the two-layer attractive Hubbard model

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