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quant-ph2002
Continuous Unitary Transformations
Vladimir L. Safonov
In the present time we observe a growing number of publications where the, so-called, flow equations are successfully used to diagonalize Hamiltonians by means of an appropriate un…
quant-ph2001
A single mode realization of SU(1,1)
Vladimir L. Safonov
A single mode realization of SU(1,1) algebra is proposed. This realization makes it possible to reduce the problem of two nonlinear interacting oscillators to the problem of free m…