References
- Dorsey , A. T. , Fisher , M. P. A. and Wartak , M. S. 1986 . Phys. Rev. A , 33 : 1117
- Emin , D. , Baskes , M. I. and Wilson , W. D. 1979 . Phys. Rev. Lett. , 42 : 791
- Feynman , R. P. and Vernon , F. L. 1963 . Ann. Phys. N.Y. , 24 : 791
- Flynn , C. and Stoneham , A. 1970 . Phys. Rev. B , 1 : 3966
- Fritzsche , A. 1992 . Universitát Stuttgart . Dr. rer. nat. thesis
- Fritzsche , A. , Hampele , M. , Herlach , D. , Maier , K. , Major , J. , Schimmele , L. , Seeger , A. , Staiger , W. , Templ , W. and Baines , C. 1990 . Hyperfine Interactions , 63–65 : 691
- Fujii , S. 1979a . J. Phys. Soc. Jap. , 46 : 1833 1979b, J. Phys. Soc. Jap., 46, 1843
- Grabert , H. 1992 . Phys. Rev. B , 46 : 12753
- Hedegard , P. and Caldeira , A. O. 1987 . Phys. Scripta , 35 : 609
- Holstein , T. 1959 . Ann. Phys. , 8 : 325 343
- Kadono , R. , Imazato , J. , Matsuzaki , T. , Nishiyama , K. , Nagamine , K. , Yamazaki , T. , Richter , D. and Welter , J. -M. 1989 . Phys. Rev. B , 39 : 23
- Kadono , R. , Kiefl , R. F. , Kreitzmann , S. R. , LI , Q. , Pfiz , T. , Riseman , T. M. , Zhou , H. , Wappling , R. , Harris , S. W. , Hartmann , O. , Karlsson , E. , Hempelmann , R. , Richter , D. , Niinikoski , T. O. , Le , L. P. , Luke , G. M. , Sternlieb , B. and Ansaldo , E. J. 1990 . Hyperfine Interactions , 64 : 737
- Kagan , Y. 1992 . J. low temp. Phys. , 87 : 525
- Kagan , Y. and Klinger , M. 1974 . J. Phys. C , 7 : 2791
- Kagan , Y. and Prokof'ev , N. 1986 . Sov. Phys. JETP , 63 : 1276 1989a, Sov. Phys. JETP, 69, 1250; 1989b, Sov. Phys. JETP, 69, 836; 1991, Phys. Lett. A, 159, 289; 1992, Quantum Tunnelling in Condensed Media, edited by Y. Kagan and A. J. Leggett (Amsterdam: Elsevier), p. 37
- Klamt , A. and Teichler , H. 1986a . Phys. star. sot. (b) , 134 : 103 1986b, Phys. star. sot. (b), 134, 533
- Kondo , J. 1984 . Physica B , 125 : 279 1986, Hyperfine Interactions, 31, 117; 1987, J. Phys. Soc. Jap., 56, 1638; 1988, Fermi Surface Effects, Springer Series in Solid State Sciences, Vol. 77, edited by J. Kondo and A. Yoshimori (Berlin: Springer), p. 1
- Krimmel , H. , Schimmele , L. , Elsasser , C. and Fahnle , M. 1994 . J. Phys. condens. matter. , 6 : 7679 7705
- Leggett , A. J. , Chakravarty , S. , Dorsey , A. T. , Fisher , M. P. A. , Garg , A. and Zwerger , W. 1987 . Rev. mod. Phys. , 59 : 1
- Leibfried , G. and Breuer , H. 1978 . “ Springer Tracts in Modern Physics ” . In Point Defects in Metals , Vol. 81 , Berlin : Springer .
- Mahan , G. D. 1981 . Many-Particle Physics , New York : Plenum Press .
- MoRozov , A. I. and Sigov , A. S. 1993 . Physics Uspekhi , 36 : 828
- Prokof'ev , N. 1994 . Hyperfine Interactions , 85 : 3
- Puska , M. J. and Nieminen , R. M. 1984 . Phys. Rev. B , 29 : 5382
- Regelmann , T. 1994 . Universitat Stuttgart . Dr. rer. nat. thesis
- Regelmann , T. , Fritzsche , A. , Schimmele , L. and Seeger , A. 1994b . Hyperfine Interactions , 85 : 97
- Regelmann , T. , Fritzsche , A. , Schimmele , L. and Teichler , H. 1994a . Z. Phys. B , 93 : 303
- Regelmann , T. and Schimmele , L. 1994 . J. Alloys Compounds , in the press
- Regelmann , T. , Schimmele , L. and Seeger , A. 1994c . Z Phys. B , 95 : 441
- Saving , E. J. and Seeger , A. 1989 . Scripta metall. , 15 : 431
- Schimmele , L. and Seeder , A. 1994 . Hyperfine Interactions , 85 : 45
- Schmidt , C. 1984 . Universitat Stuttgart . Dr. rer. nat. thesis
- Schulman , L. S. 1981 . Applications of Path Integration , New York : Wiley .
- Seeger , A. and Schimmele , L. 1992 . Perspectives of Meson Science , Edited by: Yamazaki , T. , Nakai , K. and Nagamine , K. 293 Amsterdam : Elsevier .
- Sugimoto , H. and Fukai , Y. 1980 . Phys. Rev. B , 22 : 670 1981, J. Phys. Soc. Jap. 50, 3709
- Teichler , H. 1977 . Phys. Lett. A , 64 : 78 1979, Z Phys. Chem. NF, 114, 155
- Teichler , H. and Seeger , A. 1981 . Phys. Len. A , 82 : 91
- Vashista , P. and Singwi , K. S. 1972 . Phys. Rev. B , 6 : 875
- Vladar , K. , Zawadowski , A. and Zimanyi , G. T. 1988a . Phys. Rev. B , 37 : 2001 1988b, Phys. Rev. B, 37, 2015
- Weiss , U. 1993 . Quantum Dissipative Systems , Series in Modern Condensed matter Physics Vol. 2 , Singapore : World Scientific .
- Weiss , U. , Grabert , H. and Linkwitz , S. 1987 . J. low temp. Phys. , 68 : 213
- Wipf , H. , Steinbinder , D. , Neumaier , K. , Gutsmiedel , P. , Magerl , A. and Dianoux , A. J. 1987 . Europhys. Lett. , 4 : 1379
- Yamada , K. 1984 . Prog. Theor. Phys. , 72 : 195 1986, Prog. Theor. Phys., 75, 1030
- Zhang , C. and Tzoar , N. 1990 . Hyperfine Interactions. , 64 : 729