Ultrastrong Jaynes-Cummings model

Ultrastrong Jaynes-Cummings model
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超强杰恩斯-卡明斯模型

DOI:
10.1103/physreva.101.043835
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发表时间:
2019-02
期刊:
影响因子:
2.9
通讯作者:
Kuang Le-Man
Kuang Le-Man
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Huang Jin-Feng;Liao Jie-Qiao;Kuang Le-Man

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我们提出了一种可靠的方案,通过同时调制两能级系统的共振频率和超强量子Rabi模型中的玻色子模式来实现超强Jaynes-Cummings (JC)模型。我们发现在高频和低频调制下,逆旋转项可以被完全抑制而不降低旋转波项的耦合强度,从而实现了超强的JC哈密顿量。超强JC相互作用不仅可以用于实现超快量子态转移和量子逻辑门等超快量子运算,而且还将为JC哈密顿量跨深强耦合点的量子相变论证开辟一条新的途径。并对该方案在电路qed系统中的实验实现进行了讨论。
We propose a reliable scheme to realize the ultrastrong Jaynes-Cummings (JC) model by simultaneously modulating the resonance frequencies of the two-level system and the bosonic mode in the ultrastrong quantum Rabi model. We find that in both the high- and low-frequency modulation regimes, the counter-rotating terms can be completely suppressed without reducing the coupling strength of the rotating-wave terms, and hence the ultrastrong JC Hamiltonian is achieved. The ultrastrong JC interaction can not only be used to implement ultrafast quantum operations such as ultrafast quantum state transfer and quantum logic gates but also will open up a new route to the demonstration of quantum phase transition associated with the JC Hamiltonian across the deep-strong-coupling point. Some discussions on the experimental implementation of this scheme with circuit-QED systems are presented.
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