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Quantum dynamics of a strongly coupled dissipative system toward thermal equilibrium II

โœ Scribed by Mio Murao; Fumiaki Shibata

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
589 KB
Volume
238
Category
Article
ISSN
0378-4371

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โœฆ Synopsis

The quantum dynamics of the Jaynes-Cummings model toward thermal equilibrium is studied in detail fi'om the viewpoint of phase and energy relaxation, continuing the previous work of the authors, Physica A 217 (1995) 348. The dynamics of the spin subsystem and the Hushimi functions of the boson subsystem are clarified by calculating the reduced density matrix including the off-diagonal part with respect to the boson quantum number. The decoherence of the coupled system is investigated using the purity. The Hushimi function and purity are divided into two parts from the diagonal and off-diagonal elements. The effects of phase and energy relaxation are analysed quantitatively.

๐Ÿ“œ SIMILAR VOLUMES

Quantum coherence and tunnelling in a do
Quantum coherence and tunnelling in a double-well potential in a thermal environment: dynamics of the weakly coupled spin-boson system
โœ H. Dekker ๐Ÿ“‚ Article ๐Ÿ“… 1987 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 22 KB

Quantum coherence and tunnelling in a double-well potential in a thermal environment: dynamics of the weakly coupled spin-boson system H. DEKKER [Physica 144A (1987) 4531 p. 458, 1st line below eq. (2.10): "Hamiltonian part of" should read: "Hermitian part of".