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Schroedinger-Cat-Likeness in Adiabatic Approximation for Generalized Quantum Rabi Model without and with A Quadratic Interaction


開催時期 2018-10-10 16:45~2018-10-10 17:45

場所 九州大学 伊都キャンパス ウエスト1号館 4階 IMIオーディトリアム (W1-D-413)

受講対象  

講師 廣川 真男 (広島大学)

10月 IMI Colloquium
 
日時:2018年10月10日(水)
         16:45-17:45
 
場所:九州大学 マス・フォア・インダストリ研究所 ウエスト1号館 D棟 4階
         IMIオーディトリアム(W1-D-413)(円形階段教室)
 
講師:廣川 真男 教授 (広島大学)
 
講演タイトル :  Schroedinger-Cat-Likeness in Adiabatic Approximation for Generalized Quantum Rabi Model without and with A Quadratic Interaction

講演要旨:
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.
 


10月 IMI Colloquium (2018/10/10開催)報告