A model study of PT and anti-PT-symmetric qubits in a dephasing bath: coherence, phase, quantum speed limits, and Rényi entropies all reduce to a single decay function whose parameters make the anti-PT qubit look more robust.
(81) This measures the average uncertainty or entanglement entropy and is additive for independent systems, weighting all of their corresponding eigenstates linearly
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Quantum Dynamics and Information Measures in PT and Anti-PT-Symmetric Systems
A model study of PT and anti-PT-symmetric qubits in a dephasing bath: coherence, phase, quantum speed limits, and Rényi entropies all reduce to a single decay function whose parameters make the anti-PT qubit look more robust.