Zeitschrift für Physik B Condensed Matter

, Volume 94, Issue 3, pp 341–346 | Cite as

Dynamics of a coupled pair of two-level tunnelling systems

  • Orestis Terzidis
  • Alois Würger
Original Contributions


An exact solution for the dynamics of a coupled pair of symmetric two-level-systems is given by calculating the resolvent of the Liouvillian and the statistical operator of the problem. At low temperatures interference effects between the two systems turn out to be of major importance. Depending on the value and the sign of the interaction parameter the susceptibility of the pair increases or decreases compared to the situation of isolated systems. For high temperatures the interference contributions disappear.


79.43G 63.50 61.72S 


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Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • Orestis Terzidis
    • 1
  • Alois Würger
    • 1
  1. 1.Institut für Theoretische PhysikHeidelbergGermany

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