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quant-ph2026
Intrinsic Pointer Basis and Irreversible Classicality from Coherence Contraction
José J. Gil
This work analyzes an operational route to classical behavior for reduced quantum states using the intrinsic reference basis (IRB). Relative to a fixed physical conjugation, the IR…
quant-ph2025
Spectral Bounds on Entropy and Ergotropy via Statistical Effective Temperature in Classical Polarization and Quantum Thermal States
Tariq Aziz, Meng-Long Song, Liu Ye +3
We formulate a unified definition of the statistical effective temperature (SET) for finite-dimensional classical and quantum systems using dimension-dependent indices of purity de…