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Author

Chen-Feng Cao

2 papers indexed here

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Preprint Sep 2026

Environmental records unlock universal quantum computation from thermal decoherence

At a fixed thermal exposure, the same stabilizer processor can be classically simulable or quantum universal, depending on which environmental records its controller retains. We give an exact computational classification of energy-counting thermal-idle instruments in a quantum processor with ideal stabilizer control an...

Chen-Feng Cao, Qi Zhao · 0 citations
Preprint Oct 2026

The magic cost of fermionic randomness

Sampling-based quantum advantage raises a basic resource question: how much non-Gaussianity is needed to reproduce the random-matrix statistics often associated with quantum chaos? Passive fermionic linear optics preserves Gaussian structure, and even Haar-random mode mixing fails to anticoncentrate for Slater inputs....

Chen-Feng Cao, Yi-Fan Tang, J. Eisert · 0 citations

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