Computerprogramm, Verfahren zur Schätzung der Energiepegeldifferenz und Quantenrechensystem

Details

Veröffentlichungs-Nr.

EP4793836

Anmeldetag

3. Februar 2026

Veröffentlichung

19. August 2026

Rechtsraum

EP

IPC

G06N10/20, G06N10/60

Abstract

A processing unit causes a quantum computer to execute a quantum circuit including a first-polarity first control gate and a second-polarity second control gate, each controlled by an auxiliary qubit. The first control gate applies a first time-evolution operator corresponding to a Hamiltonian H(λ) to a qubit group corresponding to a quantum state |ψ>. The second control gate applies a second time-evolution operator corresponding to H(λ + δλ) to the qubit group. The processing unit acquires, from the quantum computer, a probability amplitude corresponding to an event that a result of applying the two types of time-evolution operators to the quantum state |ψ> matches |ψ>. The processing unit acquires a cumulative distribution function for an energy level difference between H(λ) and H(λ + δλ) by executing discrete Fourier transform using the probability amplitude, and estimates the difference based on the cumulative distribution function.

Anmelder

Firmen

FUJITSU LIMITED
QunaSys Inc.

Land

🇯🇵 Japan

Fachgebiete