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Private Product Computation using Quantum Entanglement
René Bødker Christensen, Petar Popovski · 2023-05-10 · via cs.IT updates on arXiv.org

In this work, we show that a pair of entangled qubits can be used to compute a product privately. More precisely, two participants with a private input from a finite field can perform local operations on a shared, Bell-like quantum state, and when these qubits are later sent to a third participant, the third participant can determine the product of the inputs, but without learning more about the individual inputs. We give a concrete way to realize this product computation for arbitrary finite fields of prime order.