الباحثون

Ranyiliu Chen

المنشورات 2

نسخة أولية وصول مفتوح

Collective Quantum State Preparation Is Nonadditive

Lin Zhu, Ranyiliu Chen, Xin Wang وآخرون · 2026

Quantum state preparation is a basic primitive of quantum computation and control, but its resource cost is usually analyzed for one target state or under an independent-copy construction. Here we study the many-copy problem under weighted Pauli control, where a Pauli-product rotation $e^{iφP}$ is charged by its rotati …

نسخة أولية وصول مفتوح

Closed-Form Arbitrary-Gap Rényi Nonadditivity Above Any Positive Order via Direct Products of Free Groups and High-Girth Graphs

We give a closed-form finite-dimensional construction of quantum channels with real algebraic entries exhibiting arbitrarily large violations of minimum-output Rényi entropy additivity uniformly above any prescribed positive Rényi order, using a different finite realization based on direct products of free groups and f …

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