Third-order exceptional point in an ion-cavity system
- URL: http://arxiv.org/abs/2304.05886v3
- Date: Mon, 6 Nov 2023 04:12:27 GMT
- Title: Third-order exceptional point in an ion-cavity system
- Authors: Jinuk Kim, Taegyu Ha, Donggeon Kim, Dowon Lee, Ki-Se Lee, Jongcheol
Won, Youngil Moon, Moonjoo Lee
- Abstract summary: We investigate a scheme for observing the third-order exceptional point (EP3) in an ion-cavity setting.
We exploit the highly asymmetric branching ratio of an ion's excited state to satisfy the weak-excitation limit.
The EP3 appears at a point where the Rabi frequency of the pump laser and the atom-cavity coupling constant balance the loss rates of the system.
- Score: 2.44267526218617
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We investigate a scheme for observing the third-order exceptional point (EP3)
in an ion-cavity setting. In the lambda-type level configuration, the ion is
driven by a pump field, and the resonator is probed with another weak laser
field. We exploit the highly asymmetric branching ratio of an ion's excited
state to satisfy the weak-excitation limit, which allows us to construct the
non-Hermitian Hamiltonian $(H_{\textrm{nH}})$. Via fitting the
cavity-transmission spectrum, the eigenvalues of $H_{\textrm{nH}}$ are
obtained. The EP3 appears at a point where the Rabi frequency of the pump laser
and the atom-cavity coupling constant balance the loss rates of the system.
Feasible experimental parameters are provided.
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