發送短信 : An information-theoretic equality implying the Jarzynski relation

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