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quant-ph2025
Derandomised tensor product gap amplification for quantum Hamiltonians
Thiago Bergamaschi, Tony Metger, Thomas Vidick +1
The quantum PCP conjecture asks whether it is QMA-hard to distinguish between high- and low-energy Hamiltonians even when the gap between "high" and "low" energy is large (constant…
quant-ph2024
Mutual information chain rules for security proofs robust against device imperfections
Amir Arqand, Tony Metger, Ernest Y. -Z. Tan
In this work we derive a number of chain rules for mutual information quantities, suitable for analyzing quantum cryptography with imperfect devices that leak additional informatio…
quant-ph2018
Discovering physical concepts with neural networks
Raban Iten, Tony Metger, Henrik Wilming +2
Despite the success of neural networks at solving concrete physics problems, their use as a general-purpose tool for scientific discovery is still in its infancy. Here, we approach…