Text this

Number:

Provider:

CAPTCHA:

 _    _    _    _    _    _      ___     _    _   
| || | || | || | || | || | ||   / _ \\  | |  | || 
| || | || | || | || | || | ||  / //\ \\ | |/\| || 
| \\_/ || | \\_/ || | \\_/ || |  ___  |||  /\  || 
 \____//   \____//   \____//  |_||  |_|||_// \_|| 
  `---`     `---`     `---`   `-`   `-` `-`   `-`

Please enter what you see:

Text this: Quenched topological boundary modes can persist in a trivial system