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quant-ph2024
Squeezed Displaced Schrödinger-cat state as a signature of the PT-symmetry phase transition
Yuetao Chen, Shoukang Chang, Shaoyan Gao
Parity-time (PT ) symmetric systems are gain-loss systems whose dynamics are governed by non-Hermitian Hamiltonians with degeneracies at exceptional-points (EPs) and has been studi…
quant-ph2024
Noiseless linear amplification-based quantum Ziv-Zakai bound for phase estimation and its Heisenberg error limits in noisy scenarios
Wei Ye, Peng Xiao, Xiaofan Xu +8
In this work, we address the central problem about how to effectively find the available precision limit of unknown parameters. In the framework of the quantum Ziv-Zakai bound (QZZ…