GROUND STATE ENERGY OF A TWO-LEVEL SYSTEM INTERACTING WITH PHONONS
2013 ◽
Vol 27
(21)
◽
pp. 1350098
Keyword(s):
A two-level system interacting with a heat bath is considered. For simplicity the electron is assumed to interact with only two modes of the heat bath. The ground state energy of this system is obtained using a variational approach involving a series of canonical transformations. The present results are found to be more accurate than the previously reported variational results.
1987 ◽
Vol 01
(01)
◽
pp. 89-102
◽
Keyword(s):
1981 ◽
Vol 42
(C6)
◽
pp. C6-481-C6-483
Keyword(s):
Keyword(s):
2005 ◽
Vol 19
(30)
◽
pp. 1793-1802
◽