Maryam Abbasi, Washington University in St. Louis

Topological Quantum State Control In The Presence Of An Exceptional Point

In this poster, I will present our research on the quantum behavior of a non-Hermitian qubit constructed by a dissipative superconducting transmon circuit. By tuning the system parameters in real-time to encircle an exceptional point, we achieve nonreciprocal quantum state transfer and explore topological features of the complex energy landscape. Alternatively, we can employ a dilation procedure involving an ancillary qubit to simulate the evolution under non-Hermitian Hamiltonians using unitary gates, which can allow us to explore more interesting features of these systems.