An expression of the ground state energy E SB of the spin-boson Hamiltonian H SB is considered. The expression in the cases of both massive and massless bosons is given by a nonperturbative method. By using the expression, we show a necessary and sufficient condition with respect to a parameter G #
โฆ LIBER โฆ
Ground-state instabilities and entanglement in the spin-boson model
โ Scribed by Ru-Fen Liu; Chia-Chu Chen
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 281 KB
- Volume
- 374
- Category
- Article
- ISSN
- 0378-4371
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