Quantum Engineering for Analog Quantum Computation

Share this post:

日期	2026-05-25

時間	12:10-13:10

地點	理學教學新大樓物理系1F 36173會議室

領域	Quantum Information Science

講者	王喬萱教授 - 國立台灣大學物理系

題目	Quantum Engineering for Analog Quantum Computation

摘要	Eigenvalue estimation is a central problem for demonstrating quantum advantage, yet its implementation on digital quantum computers is limited by circuit depth and operational overhead. To address these challenges, we present an analog quantum phase estimation (aQPE) protocol that extracts the eigenenergies of a target Hamiltonian through continuous time evolution and single-cavity readout. By encoding eigenvalue information as conditional cavity phase-space rotations, the scheme avoids deep quantum circuits and entangling gates, while enabling measurement with established cavity tomography. We further illustrate the feasibility of this approach with an implementation of aQPE for the XY model, whose ground-state energy problem is QMA-complete, within a physical architecture compatible with existing circuit quantum electrodynamics technology. These results demonstrate a resource-efficient and scalable framework for realizing quantum phase estimation on near-term platforms.

2026-05-25 12:10:00 ~ 2026-05-25 13:10:00