Quantum algorithm estimates fidelity of commuting mixed states using density matrix exponentiation and interferometry with time complexity O(κ²N²/ε⁷).
We exponentiate χand perform phase estimation on the resulting unitarye iχt1 for eigenstate|1⟩, wheret 1 is a small time, to get an estimate ˜λofλ
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
fields
quant-ph 1years
2025 1verdicts
UNVERDICTED 1representative citing papers
citing papers explorer
-
Efficient algorithm for fidelity estimation of two quantum states
Quantum algorithm estimates fidelity of commuting mixed states using density matrix exponentiation and interferometry with time complexity O(κ²N²/ε⁷).