CONTINUOUS UPPER BOUND ON THE GROUND-STATE ENERGY OF THE FRÖHLICH POLARON
1994 ◽
Vol 08
(08n09)
◽
pp. 553-560
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Keyword(s):
The upper bound on the ground-state energy for the Fröhlich polaron is derived by means of a new version of variational principle based on the Wick symbols formalism and the coherent states theory. The bound is continuous in some respect, i.e. it is valid for all values of coupling parameter including the intermediate regions. Asymptotic behavior of the bound for the weak coupling limit and for the strong coupling limit provides, in general, lower values than well-known existing bounds. The bound can be readily generalized for the case of nonzero magnetic field.
1994 ◽
Vol 08
(10)
◽
pp. 629-639
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2010 ◽
Vol 24
(27)
◽
pp. 2705-2712
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1975 ◽
Vol 54
(2)
◽
pp. 308-315
◽
Keyword(s):
1996 ◽
Vol 10
(28)
◽
pp. 3827-3856
◽
Keyword(s):
1981 ◽
Vol 11
(11)
◽
pp. 2315-2325
Keyword(s):
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2010 ◽
Vol 49
(6)
◽
pp. 1187-1194
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Keyword(s):