Analytically solvable $2\times2$ $PT$-symmetry dynamics from su(1,1)-symmetry problems

11 Mar 2019  ·  Grimaudo R., de Castro A. S. M., Nakazato H., Messina A. ·

A protocol for explicitly constructing the exact time-evolution operators generated by $2 \times 2$ time-dependent $PT$-symmetry Hamiltonians is reported. Its mathematical applicability is illustrated with the help of appropriate examples... The physical relevance of the proposed approach within gain-loss system scenarios, like two-coupled wave-guides, is discussed in detail. read more

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Quantum Physics