Abstract
The techniques in thermo field dynamics are applied to solve a certain class of master equations associated with su(1,1) × su(1,1) symmetries exactly by an algebraic approach using disentanglement theorem.
Acknowledgements
The author would like to thank Prof. V. Srinivasan for his teaching, guidance and encouragement to complete this work.
Notes
Note
1. The action of on the second entry of the state vector
and their commutation relations with the creation and annihilation operators a on the Hilbert space H is zero, under this action
goes to
, this property is called the tildian. This has connection to C* algebra.