Institut für Theoretische Physik, Universität zu Köln, Zülpicher Str. 77, D-50937 Köln, Germany. Received 19 December 2008; published 20 April 2009. Within a generalized Caldeira-Leggett model, we analyze the conditions under which a bosonic heat bath ... J. S. Prauzner-Bechcicki, J. Phys. A 37, L173 (2004); J.-H. An and W.-M. Zhang, Phys. Rev. A 76, 042127 (2007); ; C.-H. Chou, T. Yu, and B. L. Hu, Phys. Rev. E 77, 011112 (2008); ; K.-L. Liu and H.-S. Goan, Phys. Rev. ...
Institut für Theoretische Physik, Universität zu bKöln/b, Zülpicher Str. 77, D-50937 bKöln/b, Germany. Received 19 December 2008; published 20 April 2009. Within a generalized Caldeira-Leggett model, we analyze the conditions under which a bosonic heat bath b...../b [9] J. S. Prauzner-bBechcicki/b, J. Phys. A 37, L173 (2004); J.-H. An and W.-M. Zhang, Phys. Rev. A 76, 042127 (2007); C.-H. Chou, T. Yu, and B. L. Hu, Phys. Rev. E 77, 011112 (2008); K.-L. Liu and H.-S. Goan, Phys. Rev . ...