Dynamical symmetry breaking of lambda- and vee-type three-level systems on quantization of the field modes |
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Authors: | Mihir Ranjan Nath Surajit Sen Asoke Kumar Sen Gautam Gangopadhyay |
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Institution: | (1) Department of Physics, Guru Charan College, Silchar, 788 004, India;(2) Department of Physics, Assam University, Silchar, 788 011, India;(3) JD Block, Sector III, S.N. Bose National Centre for Basic Sciences, Salt Lake City, Kolkata, 700 098, India |
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Abstract: | We develop a scheme to construct the Hamiltonians of the lambda-, vee- and cascade-type three-level configurations using the
generators of SU(3) group. It turns out that this approach provides a well-defined selection rule to give different Hamiltonians for each
configuration. The lambda- and vee-type configurations are exactly solved with different initial conditions while taking the
two-mode classical and quantized fields. For the classical field, it is shown that the Rabi oscillation of the lambda model
is similar to that of the vee model and the dynamics of the vee model can be recovered from lambda model and vice versa simply
by inversion. We then proceed to solve the quantized version of both models by introducing a novel Euler matrix formalism.
It is shown that this dynamical symmetry exhibited in the Rabi oscillation of two configurations for the semiclassical models
is completely destroyed on quantization of the field modes. The symmetry can be restored within the quantized models when
both field modes are in the coherent states with large average photon number which is depicted through the collapse and revival
of the Rabi oscillations.
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Keywords: | Symmetry breaking three-level Jaynes-Cummings model collapse and revival |
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