Experience drain

Field experience is converted to ranks every 200 seconds, with each skill having a separate 200 second timer. The amount drained is dependent upon a number of factors, including position in the wall rank cycle, the character's Wisdom, and to a lesser extent, the character's Discipline. While not directly helpful, the character's Intelligence does play a part, as the amount converted to ranks is a percentage, and Intelligence will increase the size of the experience pool. Likewise, having more field experience will also increase the pulse size, due to the percentage nature.

Experience Drain at Login

Experience drain at login is a separate process from normal experience drain. When a character is logged on, after about 10 seconds, a portion of their field experience is converted to ranks. The amount is depending upon how long it has been since the character was last in game, and approximate amounts were disclosed by GM Ssra:

< 30 Minutes - 0%
30 Minutes - 6.25%
2 Hours - 25%
4 Hours - 50%
8 Hours - 100%

Experience drain at login only occurs for players who have not receieved a warning within the last 6 months.

Also note, each character is independently tracked and logging on one character will not affect any others.