| Issue |
EPL
Volume 137, Number 5, March 2022
|
|
|---|---|---|
| Article Number | 50004 | |
| Number of page(s) | 6 | |
| Section | General physics | |
| DOI | https://doi.org/10.1209/0295-5075/ac5dd9 | |
| Published online | 04 May 2022 | |
Exceptional point in a coupled Swanson system
Physics Department, Shiv Nadar University, Gautam Buddha Nagar - Uttar Pradesh 203207, India
(a) bbagchi123@gmail.com (corresponding author)
(b) rg928@snu.edu.in
(c) ss128@snu.edu.in
Received: 12 October 2021
Accepted: 15 March 2022
We propose an interacting non-Hermitian model described by a two-mode quadratic Hamiltonian along with an interaction term to locate and analyse the presence of an exceptional point in the system. Each mode is guided by a Swanson-like quadratic Hamiltonian and a suitable choice is made for the interaction term. The parity-time symmetric transformation is adopted in the standard way relevant for a coupled system.
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