2 papers
quant-ph2025
Non-unique decompositions of mixed states and deterministic energy transfers
Zihan Wang, Fei Meng, Oscar Dahlsten
We investigate the impact of non-unique decompositions of mixed states on energy transfer. Mixed states generally have non-unique decompositions into pure states in quantum theory…
quant-ph2025
Generalized Cross-Entropy Benchmarking for Random Circuits with Ergodicity
Bin Cheng, Fei Meng, Zhi-Jiong Zhang +1
Cross-entropy benchmarking is a central technique used to certify a quantum chip in recent experiments. To better understand its mathematical foundation and develop new benchmarkin…