Quantum state discrimination in a $\mathcal{P}\mathcal{T}$-symmetric system of a single trapped ion

Chenhao Zhu, Tingting Shi, Liangyu Ding +3

We experimentally demonstrate an unambiguous quantum state discrimination of two qubit states under a non-Hermitian Hamiltonian with parity-time-reversal ($\mathcal{P}\mathcal{T}$) symmetry…