VTDE

2000년 도입 · 논문 1편에서 사용

Variational Trace Distance Estimation, or VTDE, is a variational algorithm for trace norm estimation that only involves one ancillary qubit. Notably, the cost function in VTDE gathers information from a single-qubit observable and thus could avoid the barren plateau issue with logarithmic depth parameterized circuits.

출처: Variational Quantum Algorithms for Trace Distance and Fidelity Estimation

소개 논문: Variational Quantum Algorithms for Trace Distance and Fidelity Estimation