Schroedinger-Cat-Likeness in Adiabatic Approximation for Generalized Quantum Rabi Model without and with A Quadratic Interaction
- Hold Date
- 2018-10-10 16:45～2018-10-10 17:45
- Place
- IMI Auditorium (W1-D-413), West Zone 1, Ito campus, Kyushu University
- Object person
-
- Speaker
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Masao HIROKAWA (Hiroshima University)
| The IMI Colloquium in October | Date : Wednesday, 10 October 2018
16:45-17:45 | | Place : IMI Auditorium (W1-D-413) (4F, West Zone 1, Kyushu University) | | Speaker : Prof. Masao HIROKAWA (Hiroshima University) | | | | Title : | Schroedinger-Cat-Likeness in Adiabatic Approximation for Generalized Quantum Rabi Model without and with A Quadratic Interaction | | | Abstract :
In my talk, I will give a mathematical procedure to obtain the adiabatic approximation for the generalized quantum Rabi Hamiltonian both without and with a quadratic interaction. I will consider the Hamiltonian as the energy of a model in circuit QED. In the case without the quadratic interaction, I will show in the adiabatic approximation that whether each bare eigenstate forms a Schroedinger-cat-like entangled state or not depends on whether the bias energy in the atom Hamiltonian is zero or non-zero, and then, the effect of the atom is ignored. On the other hand, in the case with the quadratic interaction, I will consider its renormalization, and show in the adiabatic approximation that all the physical eigenstates form individual Schroedinger-cat-like entangled states for every bias energy. This fact comes from the effect of the atom. | | | |
IMI Colloquium Report |
