Real-time Krylov Diagonalisation for Open Quantum Systems

Fuente: arXiv
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Auteur principal: Herrera-Martí, D. A.
Format: Preprint
Publié: 2026
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author Herrera-Martí, D. A.
author_facet Herrera-Martí, D. A.
contents In this chapter, we demonstrate how real-time quantum Krylov subspace methods can be adapted to investigate open quantum systems described by the Lindblad formalism. We apply these methods to a two-photon-driven superconducting Kerr resonator and illustrate their use in estimating the Liouvillian gap within the Kerr Cat qubit regime. This is based on work done between November 2025 and January 2026 and on the talk given in early February 2026 at the Kwekfest 2026 conference, to celebrate L.C. Kwek's lifetime achievements.
format Preprint
id arxiv_https___arxiv_org_abs_2605_03715
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Real-time Krylov Diagonalisation for Open Quantum Systems
Herrera-Martí, D. A.
Quantum Physics
In this chapter, we demonstrate how real-time quantum Krylov subspace methods can be adapted to investigate open quantum systems described by the Lindblad formalism. We apply these methods to a two-photon-driven superconducting Kerr resonator and illustrate their use in estimating the Liouvillian gap within the Kerr Cat qubit regime. This is based on work done between November 2025 and January 2026 and on the talk given in early February 2026 at the Kwekfest 2026 conference, to celebrate L.C. Kwek's lifetime achievements.
title Real-time Krylov Diagonalisation for Open Quantum Systems
topic Quantum Physics
url https://arxiv.org/abs/2605.03715