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 __   _    _    _     _  __   __   __    ______  
| || | || | || | ||  | |/ //  \ \\/ //  /_   _// 
| '--' || | || | ||  | ' //    \ ` //   `-| |,-  
| .--. || | \\_/ ||  | . \\     | ||      | ||   
|_|| |_||  \____//   |_|\_\\    |_||      |_||   
`-`  `-`    `---`    `-` --`    `-`'      `-`'

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發送短信 : Quenched topological boundary modes can persist in a trivial system