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quant-ph2025
Lindbladian PT phase transitions
Yuma Nakanishi, Tomohiro Sasamoto
A parity-time (PT) transition is a spectral transition characteristic of non-Hermitian generators; it typically occurs at an exceptional point, where multiple eigenvectors coalesce…
quant-ph2024
Continuous time crystals as a PT symmetric state and the emergence of critical exceptional points
Yuma Nakanishi, Ryo Hanai, Tomohiro Sasamoto
Continuous time-translation symmetry is often spontaneously broken in open quantum systems, and the condition for their emergence has been actively investigated. However, there are…