Abstract
The Markovian master equation that describes the dynamics of the anharmonic Morse potential under the influence of a thermal environment is analogous to the amplitude damping of the harmonic oscillator, but the result is qualitatively different. We show that the environment induced decoherence drives a wave packet into a mixed state that is well approximated by the time average of the initial state over one oscillation period.
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I.S. Averbukh and N.F. Perelman, Phys. Lett. A139 (1989) 449.
J. Parker and C.R. Stroud, Phys. Rev. Lett. 56 (1986) 716.
S.I. Vetchinkin and V.V. Eryomin, Chem. Phys. Lett. 222 (1994) 394.
P. Földi et al., Opt. Express 10 (2002) 376.
J. Janszky et al., Phys. Rev. A 50 (1994) 1777.
J.P. Dahl and M. Springborg, J. Chem. Phys. 88 (1988) 4535.
L.D. Landau and E.M. Lifshitz, Quantum Mechanics, Nonrelativistic Theory, Pergamon Press, Oxford, 1965.
M.G. Benedict and B. Molnár, Phys. Rev. A 60 (1999) R1737.
S. Nakajima, Prog. Theor. Phys. 20 (1958) 948.
D.F. Walls and G.J. Milburn, Phys. Rev. A 31 (1985) 2403.
V. Bužek et al., Phys. Rev. A 45 (1992) 6570.
P. Földi et al., Phys. Rev. A 67 (2003) 032104 [quant-ph/0208141].
Y.S. Kim and M.E. Noz, Phase Space Picture of Quantum Mechanics, World Scientific, Singapore, 1991.
P. Földi et al., Phys. Rev. A 63 (2001) 033807.
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Földi, P., Benedict, M.G. & Czirják, A. On the direction of decoherence in the Morse potential. Acta Phys. Hung. B 20, 25–28 (2004). https://doi.org/10.1556/APH.20.2004.1-2.6
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DOI: https://doi.org/10.1556/APH.20.2004.1-2.6